i7 920 overclocking by batch #

[nickpc]

ok , this thread is for i7 920 overclocking by batch #, 4ghz, 4.1ghz, 4.2ghz, 4.3ghz, 4.4ghz and so on

mobo :
state your batch #:
size of rad or air cooling you have:
how many ghz :
vcore for that clock in bios:
vtt voltage :
and also max temp on worst core @ that clock:

and most of all proof that its stable(picture of prime/occt or if you are in a hurry linx of at least 10 to 20 passes with a picture of cpuz and real temp in the same screen shot) no cheating please its not a competition (download LinX 0.6.1 (http://dl.getdropbox.com/u/663563/LinX/en/LinX.7z) )

[nickpc]

mobo: ud5
state your batch #:"3849B018" SLEBJ
size of rad or air cooling you have: 2x120 rad with swiftech gtz
how many ghz :4.2ghz
vcore for that clock in bios: 1.262v
vtt voltage : 1,22v
and also max temp on worst core @ that clock: 70c

http://img150.imageshack.us/img150/9089/42linx.jpg (http://img150.imageshack.us/i/42linx.jpg/)

_____________________
mobo:ud5
state your batch #: "3849B018" SLEBJ
size of rad or air cooling you have: 2x120 rad with swiftech gtz
how many ghz : 4.3ghz
vcore for that clock in bios: 1.306v
vtt voltage : 1.28v
and also max temp on worst core @ that clock: 74c


http://img142.imageshack.us/img142/6421/43ghz1303vcore.jpg (http://img142.imageshack.us/i/43ghz1303vcore.jpg/)

mobo: ud5
state your batch #: "3849B018" SLEBJ
size of rad or air cooling you have:2x120 rad with swiftech gtz
how many ghz : 4.4ghz
vcore for that clock in bios: 1.3375v
vtt voltage : 1.3v
and also max temp on worst core @ that clock: 80c

http://img196.imageshack.us/img196/2486/44ghz1337vcore.jpg (http://img196.imageshack.us/i/44ghz1337vcore.jpg/)

4.5ghz soon hopefully when i get better cooling !

[imomun]

CORE I7 920 D0

THE GOLDEN BATCH 3849B018
4.2GHZ HT ON @1.21v MAX TEMP 76C ON AIR ! :rolleyes:

http://img200.imageshack.us/img200/4984/3849b018.png

[Touge180SX]

CORE I7 920 D0

THE GOLDEN BATCH 3849B018
4.2GHZ HT ON @1.21v MAX TEMP 76C ON AIR ! :rolleyes:

http://img200.imageshack.us/img200/4984/3849b018.png

Good stuff and welcome to OCW!

One thing though, do you have a screenshot with OCCT/Prime/LinX, etc. showing that it is stable and also shot of your max temps reached?

[imomun]

Paid $350 after a lot of search got it and guess what its worth it!http://www.overclock.net/images/smilies/biggrin.gif

4.2GHz HT@1.23V ROCK SOLID STABLE 24/7


http://img232.imageshack.us/img232/9471/capture1b.gif


Did several hours of priming before for peace of mind, 100% stable, above one just to take the screenshots wouldnt wana go again through 15 hours test again, for a screenshothttp://www.overclock.net/images/smilies/smile.gif

The previous D0 used to require 1.328v to be prime stable, while this one requires 1.23v !:w00t:

When and if I get water cooling I will certainly push it beyound 4.5ghz should do within 1.4v but till then im happy with that speed and temp, as its inside the case and max temp always stays within 78-80 after priming.

GTA Crysiss cant even use the full power of the CPU its kinda overkill! Heavy couple hours of gaming temp never exceeds 72c NEVER!

I7 920 D0
TRUE
ASUS P6T
GTX 285 OC
6GB CORSAIR
64GB CORSAIR SSD
CORSAIR TX 650
_________________________________________

[Touge180SX]

Awesome stuff!

I need to post up my batch info here sometime too I guess. :tongue:

[nickpc]

good stuff mate and welcome to OCW, i wouldnt say its a golden chip but this batch is ok, also i see that u are @ 1.23v under load in cpuz, but dont forget to add vdroop and vdrop to that , what you set in bios is not what you get in windows (vdrop) and then when you go under load you would get less again (vdroop)

so if your getting 1.23 under load in windows id say your actual voltage in bios is at least 1.26 ?

but good stuff mate you got a nice chip there,

edit ... and yea Erik get some of them classified results up here :P even just use linx for some quick screenies ! almost feel like sending ya my chip to see how much voltage it needs 4 same clocks on the classified , but then id just be torturing my self :(

[imomun]

Thanks.
nickpc mate which batch you raken to be titled as golden batch? I do have few batches aswell, but thought the above one is the best, I would like to know your opinion about batch:)

[nickpc]

Thanks.
nickpc mate which batch you raken to be titled as golden batch? I do have few batches aswell, but thought the above one is the best, I would like to know your opinion about batch:)



3845B027. This CPU clock, 5383.73 Mhz, is #1 on HWbot for both i7 920 and W3520.

3849B016 5299.73 Mhz on dry ice, good for 7th place ranking on HWbot

3845B026, has identical performance as the 027, the 026 needs about .05 V more for the same clock, but runs cooler


personally i think the 3845B027 is the golden batch of i7 920 DO, be intresting to see what 3849B018 batch would do on ln2 or dry ice,
i know we would get better results on a evga classified as in need less voltage to be stable @ same clocks from what i have seen

[imomun]

Hmm I don have those but got a 3845B260 reported to achive 4.7GHz+ on air!
The 3849B018 the above chip was doing 4.9GHz+ on water (the guy I bought from) and he assured on dry ice or LN2 it shoud breake the 5.2GHZ record!:ohmy:

My bios settings set to normal/auto using corsairs xmp profile, I set 1.225vcore in bios 1.225v QPI/dram bus and 1.6v for drams 2gb sticks running @ 7-7-7 20 1T Guess my asus p6t deluxe power phases adds up the rest.

I also heard good things about evga wondering which version is better and will my rams be compatible or not with that mobo:rolleyes:

[Touge180SX]

I'm running an E760 EVGA Classified and I hit 4.8Ghz on water but have not posted the screenie yet. I posted my 4.7 one. Oh yeah, forgot to mention that Nick, got to 4.8 yesterday! :scared: Going for the 5Ghz hopefully! Here is my batch number:
3849B203

[Glyn]

I'd be interested to see your voltages and stuff Touge. I did the unthinkable and swapped the ASUS for a Classy since you guys seemed to be getting such low voltages. The bios is very different but its running stable at 4.4 right now but I'm sure I can wind down a lot of the voltages which is why I'd be interested to see yours. New CPU block is also fitted.

[Touge180SX]

I'd be interested to see your voltages and stuff Touge. I did the unthinkable and swapped the ASUS for a Classy since you guys seemed to be getting such low voltages. The bios is very different but its running stable at 4.4 right now but I'm sure I can wind down a lot of the voltages which is why I'd be interested to see yours. New CPU block is also fitted.

Glyn, your interested in my 24/7 4.2 or my suicide 4.7 and 4.8? I'm at my parents-in-laws house for the weekend to celebrate my son's 1st birthday but I'll get you something ASAP! :)

[Glyn]

No hurry - I see there are a lot of templates out there and they increase some of the more obscure - well obscure to me coming from ASUS terminology - voltages.

[Touge180SX]

No hurry - I see there are a lot of templates out there and they increase some of the more obscure - well obscure to me coming from ASUS terminology - voltages.

Yeah, I'm sure if I changed some of the more obscure ones I could possibly have a better chance at 5Ghz.

[jebo_4jc]

Mine is a 3904A361

It arrived yesterday.

A quick google search found a guy at 4.2ghz at 1.29v (http://www.evga.com/community/ModsRigs/comment.asp?sysid=17974)

I don't have terribly high hopes, but I think I would be OK with 4.2 at 1.29

[Touge180SX]

Mine is a 3904A361

It arrived yesterday.

A quick google search found a guy at 4.2ghz at 1.29v (http://www.evga.com/community/ModsRigs/comment.asp?sysid=17974)

I don't have terribly high hopes, but I think I would be OK with 4.2 at 1.29

Not bad at all Jebo! Hurry up and put it together now!! :tongue:

[Patriot]

Mine is a 3904A361

It arrived yesterday.

A quick google search found a guy at 4.2ghz at 1.29v (http://www.evga.com/community/ModsRigs/comment.asp?sysid=17974)

I don't have terribly high hopes, but I think I would be OK with 4.2 at 1.29

very nice...
I still am figuring out this little bugger... since mine starts at 2.26ghz I doubt I will get as far as you guys...

right now I have it at 3.15 @ turbo peak...

[jebo_4jc]

what mobo are you using patriot?

i cant build my i7 rig yet. i missed the mailman with my ud5 today. i'll pick it up tomorrow and at least start building this weekend

[Patriot]

what mobo are you using patriot?

i cant build my i7 rig yet. i missed the mailman with my ud5 today. i'll pick it up tomorrow and at least start building this weekend

ud3....cyberdog found 2 of em for $120 a piece...soo im not being picky... hence why he bought glyns corei7 and I am now putting mine together...:)

[nickpc]

Hmm I don have those but got a 3845B260 reported to achive 4.7GHz+ on air!
The 3849B018 the above chip was doing 4.9GHz+ on water (the guy I bought from) and he assured on dry ice or LN2 it shoud breake the 5.2GHZ record!:ohmy:

My bios settings set to normal/auto using corsairs xmp profile, I set 1.225vcore in bios 1.225v QPI/dram bus and 1.6v for drams 2gb sticks running @ 7-7-7 20 1T Guess my asus p6t deluxe power phases adds up the rest.

I also heard good things about evga wondering which version is better and will my rams be compatible or not with that mobo:rolleyes:

mate dont get me wrong i got the same batch and hope it is one of the best batches out there but at the end of the day if i dont do the mobo mod or get a evga classified i will never know ! and $650 is just to much for me to spend on another mobo


I'm running an E760 EVGA Classified and I hit 4.8Ghz on water but have not posted the screenie yet. I posted my 4.7 one. Oh yeah, forgot to mention that Nick, got to 4.8 yesterday! :scared: Going for the 5Ghz hopefully! Here is my batch number:
3849B203

thats killer Erik !!!


I'd be interested to see your voltages and stuff Touge. I did the unthinkable and swapped the ASUS for a Classy since you guys seemed to be getting such low voltages. The bios is very different but its running stable at 4.4 right now but I'm sure I can wind down a lot of the voltages which is why I'd be interested to see yours. New CPU block is also fitted.

good choice glyn, you will work the classified out just need to play with it !


Mine is a 3904A361

It arrived yesterday.

A quick google search found a guy at 4.2ghz at 1.29v (http://www.evga.com/community/ModsRigs/comment.asp?sysid=17974)

I don't have terribly high hopes, but I think I would be OK with 4.2 at 1.29

thats good jebo, you never know you may be able to do 4.2 at a lower voltage, just start off for 4.2 @ 1.25v vcore and qpi/vtt 1.22v and work ya way up when ya get it together


ud3....cyberdog found 2 of em for $120 a piece...soo im not being picky... hence why he bought glyns corei7 and I am now putting mine together...:)

you may be lucky patriot, i remember hicookie saying that either that mobo or maybe the ds4 or ud4 doesnt need the mobo mod to get the high bclk good luck mate !

this is wild we are all on i7 now :tongue:

[Touge180SX]

Just for anyone wanting to know, the Classified does not need a mod to hit high PCI-E Freq's. I can boot at 120 PCI-E! Just for benching of course! :tongue:

[nickpc]

Just for anyone wanting to know, the Classified does not need a mod to hit high PCI-E Freq's. I can boot at 120 PCI-E! Just for benching of course! :tongue:

ive asked hicookie to send the mod guide and BIOS for the ud5 to me , now i just need to get the balls to do it :scared:

i know it will be killer for benching buti just hope it doesnt effect my stability in a bad way ? i should ask him that http://xtremespeeds.net/pic/smilies/hmmm.gif

[Touge180SX]

ive asked hicookie to send the mod guide and BIOS to me , now i just need to get the balls to do it :scared:

Haha, good luck Nick!

[nickpc]

http://img197.imageshack.us/img197/6513/4589c.png (http://img197.imageshack.us/i/4589c.png/)

i was just stuffing around with it even tho i keep saying im not gonna push anymore :scared:, this board is really starting to piss me off, and so is this memory, i need 1.41v vcore @ 4.5ghz 215 x 21 to be linx stable temps hit 89c :scared:

and my memory needs 1.68v to do 1720mhz @ 10,10,10,26 :scared: thats crap! and even then if i try stress alot of the memory it will crash, and speaking of memory where the heck is my ocz kit been almost 2 months :cursing:

1.41v for 4.5ghz isnt bad but i just cant get it to post over 217 bclk, :cursing: i wish i had a classified :( i feel like this mobo is really letting me down now but maybe i should just shut up and be happy stable at 4.4ghz 24/7 @ 1.36v vcore ? i know this cpu has more left in it but this mobo just cant keep up unless im not doing something right

[Furball]

know im depressed does actually every1 have a better cpu than me =(=(=(
icant even get my 2000mz ram past 1600mhz at 4.2
touge if you want to sell yourse when your board of successing all the time ill buy it and you can have my current cpu as well...

[Patriot]

know im depressed does actually every1 have a better cpu than me =(=(=(
icant even get my 2000mz ram past 1600mhz at 4.2
touge if you want to sell yourse when your board of successing all the time ill buy it and you can have my current cpu as well...

if your ram wont go high rma it....
my ram is surprising me lol....1066 running at 1200 lol

[imomun]

Paid $350 after a lot of search got it and guess what its worth it!http://www.overclock.net/images/smilies/biggrin.gif

4.2GHz HT@1.23V ROCK SOLID STABLE 24/7


http://img232.imageshack.us/img232/9471/capture1b.gif


Did several hours of priming before for peace of mind, 100% stable, above one just to take the screenshots wouldnt wana go again through 15 hours test again, for a screenshothttp://www.overclock.net/images/smilies/smile.gif

The previous D0 used to require 1.328v to be prime stable, while this one requires 1.23v !:w00t:

When and if I get water cooling I will certainly push it beyound 4.5ghz should do within 1.4v but till then im happy with that speed and temp, as its inside the case and max temp always stays within 78-80 after priming.

GTA Crysiss cant even use the full power of the CPU its kinda overkill! Heavy couple hours of gaming temp never exceeds 72c NEVER!

I7 920 D0
TRUE
ASUS P6T
GTX 285 OC
6GB CORSAIR
64GB CORSAIR SSD
CORSAIR TX 650
_________________________________________


Hmm guess what?
I think after a bios downgrade (ya you heared me right, lol) and a little tweking in the bios and ahem taking off the side cover of the casing, I currently have the same speed @ less voltage prime stable!:scared:
http://img122.imageshack.us/img122/2411/20976688.png

[Furball]

if your ram wont go high rma it....
my ram is surprising me lol....1066 running at 1200 lol

its the vtt voltage, can get it to 2ghz ad 2.4 cpu...

i know what ya mean by suprising, i had cl5 800mhz ra,mms running at cl3 and 1150, cl4.5 at 1350

[Glyn]

i7 920 D0 3844A717

I would say its better than average - and perhaps 10% better than my C0.

4.55 217x21 1.45V HT off 'appears' perfectly stable and you can work with it but once you try to run a any kind of stability test or benchmark it will fail

220 BLCK won't get to Windows - and I decided not to up the voltage any further (for now)

4.3 207x21 1.4V HT off completely stable 85 deg max core - but I have to drop memory to 2:8 because that won't OC much over 2000.

4.2 201x21 1.325V HT On Max Core 82 - VRM gets warm at 64 - but I can run memory at 2000 9-9-9-27-1T at this speed which gives me higher benchmarks than at 4.3.

For example 3DMark Vantage CPU score 25909 vs 19547 (this is with PPU disabled so that Physix doesn't 'help' - with Physix on the CPU score goes up to 52430! - that explains why really high end systems have a 4th 9800 dedicated to that along with their 3 or 4 way SLI).

So, I'm going to concentrate on optimizing the OC around 200+ and look for lower VCore etc rather than trying to destroy my processor :)

In fact, I might even set up a 'normal' profile around 3.8 gig because everything will run at default voltages like that.

For other's with Classified board, here are my Profiles and setting etc:

3780 4221 4347 4557
BCLK 180 201 207 217
HT on on off off
Speedstep on on on off
Vdroop on off off off
Dram 2:10 2:10 2:8
DDR 1800 2000 1400
Vcore auto 1.3125 1.4 1.45
QPI PLL auto 1.125 1.125 1.125
CPU PLL auto 1.65 1.65 1.65
IOH Vcore auto 1.15 1.25 1.25
CPU VTT auto +250 +300 +300
DIMM 1.6 1.62 1.62 1.62
CPU Imp auto less less less
QPI Comp auto less less less
VTT PWM 250 490 490 490
CPU PWM 800 1210 1210 1210

Measured E-Leet and Real Temp with OCCT
Max Core Idle 44 50 52 53
Max Core 100% 67 82 84 X
Max VRM temp 50 64 65 X
Vcore 1.2 1.32 1.4 1.43
DRAM 1.63 1.66 1.66 1.66
VTT 1.28 1.55 1.6 1.58
NB 1.12 1.23 1.28 1.17

Vantage 1280x1024 Performance Preset with PPU Diasabled
3DMark 13862 14068 13466 failed
GPU 12237 12208 12201
CPU 23033 25909 19547

Great Guide on what the voltages mean:
http://www.evga.com/forums/tm.asp?m=100494809

And one on Overclocking i7
http://www.evga.com/forums/tm.asp?m=716108

EDIT: Oh - and of course this pretty quiet - fans all 1000 rpm or less - you can hear the air movement and also an occasional 'click' or gurgle from the CPU pump or Res. The other one for the GPU is running at 7v - so its quiet.

[imomun]

i was just stuffing around with it even tho i keep saying im not gonna push anymore :scared:, this board is really starting to piss me off, and so is this memory, i need 1.41v vcore @ 4.5ghz 215 x 21 to be linx stable temps hit 89c :scared:

and my memory needs 1.68v to do 1720mhz @ 10,10,10,26 :scared: thats crap! and even then if i try stress alot of the memory it will crash, and speaking of memory where the heck is my ocz kit been almost 2 months :cursing:

1.41v for 4.5ghz isnt bad but i just cant get it to post over 217 bclk, :cursing: i wish i had a classified :( i feel like this mobo is really letting me down now but maybe i should just shut up and be happy stable at 4.4ghz 24/7 @ 1.36v vcore ? i know this cpu has more left in it but this mobo just cant keep up unless im not doing something right

~Good try, remember the lower the temp is the more chance of you getting stability at high speed OC, so I would advice not to push it beyound 80c temp on air and definately not a good news when the thermo controller inside the cpu kicks in and lower the multi!
~Rest assured with 3849b018 1.41v will get you 4.6ghz on water chilled 60c but on air never and you might fry it for good lol
~Try priming when stable with linx as i found stable with linx doesnt gurantee stability with prime.
~I get 220 BCLK max, but my stable bclk is 215, I agree mobo plays a great role in achieving this. As similar chips doing 230BCLK in different mobo!
~Good try and nice OC

[nickpc]

i wasnt stressing for long @ 4.5ghz ive backed it down to 4.4ghz again.

anywho on another note, got the guide for the mobo mod to get higher bclk for gigabyte x58 boards from hicookie, the resistor that needs to be moved is tiny, have to take mobo out and take the heatsinks off :scared: just next to nb, wont effect stability ,

If you have EX58 UD3R version 1.6 , don’t have to modify it
mod is for EX58 EX,EX58UD5,EX58UD4 and EX58UD4P


Last thing, keep this DNA, not put it on Public, thanks!

thats all i can say :scared: but ummm for my friends with gigabyte boards pm me if ya want it , im not gonna do mine yet

[imomun]

Hmm

Couldnt resist my self from validating my above statements and what do you know ... looks like my future Watercooled OC !!! :w00t:

http://img246.imageshack.us/img246/1043/1x2.png

Certainly thers a lot more room in the chip...5Ghz now looks like a possibility with LN2...Didnt dare to run benchmarks on air ... don wana fry my golden chip lol and also 225 BCLK came up with the P6T Deluxe, (wasnt stable though) looks like not a bad mobo afterall! :rolleyes:

[John]

VERY nice:ohmy:

[Junglewarfare420]

Yeah there is plenty of room to hit 5+ with some watercooling. Good luck!!

[Touge180SX]

Yeah there is plenty of room to hit 5+ with some watercooling. Good luck!!

Hopefully that is true and it doesn't hit an FSB wall. My 920 hits 4.7 at 1.38V or so but can't get it over 4.8 yet at all! :crying:

[Furball]

Hopefully that is true and it doesn't hit an FSB wall. My 920 hits 4.7 at 1.38V or so but can't get it over 4.8 yet at all! :crying:


YOUR SIG SAYS OTHERWISE... sorry for caps. touge, there also is a pisical barrier, you wil,ll have probs hitting really high numbers without temps well below zero. just bbecause physically you run into probs

[imomun]

Yeah there is plenty of room to hit 5+ with some watercooling. Good luck!!

5GHz will require LN2 caz i will need to push in extreme voltage like 1.6v and temp has to be below -0 degree for that i need to be an official super rich mental with a personal workshop/labotary lolz I thought im creazy but im not :tongue:


VERY nice:ohmy:

thanks mate.:)


Hopefully that is true and it doesn't hit an FSB wall. My 920 hits 4.7 at 1.38V or so but can't get it over 4.8 yet at all! :crying:

Yap but it was producing 236BCLK with the previous owner with a classified.:rolleyes:


YOUR SIG SAYS OTHERWISE... sorry for caps. touge, there also is a pisical barrier, you wil,ll have probs hitting really high numbers without temps well below zero. just bbecause physically you run into probs

So true :rolleyes:

[Furball]

if you fly here, my wc build kept my cpu at 75 at 1.65v wit at at 29c or someting, i can remember te exact numbers

[Touge180SX]

YOUR SIG SAYS OTHERWISE... sorry for caps. touge, there also is a pisical barrier, you wil,ll have probs hitting really high numbers without temps well below zero. just bbecause physically you run into probs

Haha, I mean any further than that Fur! :tongue: I know what you mean though, but I really want to hit 5Ghz! :crying:

[nickpc]

Hmm

Couldnt resist my self from validating my above statements and what do you know ... looks like my future Watercooled OC !!! :w00t:


Certainly thers a lot more room in the chip...5Ghz now looks like a possibility with LN2...Didnt dare to run benchmarks on air ... don wana fry my golden chip lol and also 225 BCLK came up with the P6T Deluxe, (wasnt stable though) looks like not a bad mobo afterall! :rolleyes:


good to know our batch is a good one, i am impressed with the bclk i cant get passed 217 with out doing the hard mod, i need a better mobo ! or i need to do the hard mod

also man do me a favor , when ya post things tell us what vcore and qpi/vtt is in bios , telling us what cpuz says is useless as cpuz will tell us somthing different when cpu is under load and not under load (vdroop) and even from bios to in windows we loose voltage (vdrop)

unless you dont get vdop or vdroop in which case you have the best mobo in the world !

Erik even on the classified you get vdrop and vdroop yes ?

[Touge180SX]

good to know our batch is a good one, i am impressed with the bclk i cant get passed 217 with out doing the hard mod, i need a better mobo ! or i need to do the hard mod

also man do me a favor , when ya post things tell us what vcore and qpi/vtt is in bios , telling us what cpuz says is useless as cpuz will tell us somthing different when cpu is under load and not under load (vdroop) and even from bios to in windows we loose voltage (vdrop)

unless you dont get vdop or vdroop in which case you have the best mobo in the world !

Erik even on the classified you get vdrop and vdroop yes ?

I really haven't checked, I'll look tonight. I know my BIOS has the VDroop option but EVGA Forums say to keep it off.

[nickpc]

I really haven't checked, I'll look tonight. I know my BIOS has the VDroop option but EVGA Forums say to keep it off.

what i am trying to say is what voltage you set in the bios is not what you get in cpuz is it ? aspecially under load

[Touge180SX]

what i am trying to say is what voltage you set in the bios is not what you get in cpuz is it ? aspecially under load

Yeah, but I'm not sure how much the difference is. Next time I OC, I'll find out.

[Glyn]

You can turn VDroop Off on the Classy and initially I was doing this because it looked like it was more stable and made you feel like you were applying lower voltages than with Vdroop. It also feels like a good idea to have the voltages increase as the load increases. But the kicker is that it actually overcompensates (and not just on VCore) so you end up with voltages maybe 0.01 more than set in some instances.

VDroop on is actually Intel Spec to protect the CPU under heavy loads and I personally leave it on now - VCore drops .015 on average at 100%. I let Speedstep do its thing and reduce the voltages when they are not needed. (EDIT: Correction SpeedStep just reduces ratio to x12 - its the C1E stuff that lowers the voltages but at some point - not sure when - it stopped reducing Vcore - some time I will go back and identify when it did this - for the ASUS board it was at 151 BCLK but I'm sure it was still working around 190 BLCK)

I've stopped trying to find the max speed because I personally can't see what use it is, I dislike taking the voltages over recommended max, and of course its not one of the 'special' chips anyway so will never achieve the numbers that some people . Also max speed would be different booted to Linux or straight to DOS. So - the only true way to usefully compare has to be the one that allows you to use the system i.e. play games, run benchmarks etc. For example - if you're going to reflash your SSD or Video BIOS - would you trust this OC? :scared:

I found my personal sweet-spot now at 4.35 Ghz 207 x 21 - stable after many hours of testing (but I must be honest and say I reset stock settings when I flashed by SSD yesterday - primarily because it was a destructive backflash to remove a beta release that wrote itself to some wrong locations).

I run my system with everything turned on so the voltages and frequencies reduce when idle etc. The system also shuts off fans as needed - for example when the GPU is not in 3D mode it doesn't need the fan running on its radiator to keep itself at 40. Those that know me know I can't stand noise when working (home office) - but its okay if things ramp up a but when gaming.

4.4 gig (210 x 21) is 97% stable - it will work for ages and Prime etc - but every so often little stuff will happen like a Gadget will stop working for no reason - so it's not a 'useful' overclock.

I'll put my 4.35 setting in my sig. I understand the Classy settings pretty well now -(thanks to lots of reading and playing) so I will be able to help people in future I think.

In truth the Classified is very similar to the Rampage II Extreme performance-wise - interesting to note that the the results I obtained were very close with both systems - and in fact not a great deal higher than the straight P6T which was stable at 205 x 21.

So Nick, depending on how much 'spare' money you have, I would say that you might not get massive improvements with a different system - well nothing that you will actually be able to run 24/7 or anything.

As usual, in retrospect, I don't think all the money I spent recently was worth it - to be honest I waste a great deal of money on PCs - certainly a lot more than I would ever own up to! I started to list what I've bought this year and I had to stop ... the overall cost would have been enough to buy a decent second hand bass boat!

But of course - I know I'm not alone on this site !! ;)

[imomun]

good to know our batch is a good one, i am impressed with the bclk i cant get passed 217 with out doing the hard mod, i need a better mobo ! or i need to do the hard mod

also man do me a favor , when ya post things tell us what vcore and qpi/vtt is in bios , telling us what cpuz says is useless as cpuz will tell us somthing different when cpu is under load and not under load (vdroop) and even from bios to in windows we loose voltage (vdrop)

unless you dont get vdop or vdroop in which case you have the best mobo in the world !

Erik even on the classified you get vdrop and vdroop yes ?


Lolz


230 Max stable BCLK on P6T Deluxe :cool: (achived so far)


http://img98.imageshack.us/img98/638/230bclk.jpg



4200MHz @ 1.22v (prime stable) 24/7 Settings


http://img401.imageshack.us/img401/193/69453143.jpg

Bios settings are

Corsairs XMP
1600mhz 7-7-7 20 1T
ratio: 2:8
cpu multi: 21
BCLK 200
PCIE 100
CPU core voltage 1.218v
Dram voltage 1.5v
QPI 1.2v
Everything else is set on auto !

One funny thing I have noticed it doesnt show 208 BCLK on CPUZ even when on bios its 208 BCLK CPUZ shows 206.8 BCLK, dont know why, and any more BCLK after that requires significant voltage increase!

[John]

Don't about enough to buy a bass boat but a good car for sure.
I don't want to add up just my NewEgg purchases, sure I could have bought a motorcycle

At this time the only changes I am making is if it results in a noticeable performance change. The SSD and the 120Hz monitor did make a noticeable change


You can turn VDroop Off on the Classy and initially I was doing this because it looked like it was more stable and made you feel like you were applying lower voltages that with Vdroop. It also feels like a good idea to have the voltages increase as the load increases. But the kicker is that it actually overcompensates (and not just on VCore) so you end up with voltages maybe 0.01 more than set in some instances.

VDroop on is actually Intel Spec to protect the CPU under heavy loads and I personally leave it on now - VCore drops .015 on average at 100%. I let Speedstep do its thing and reduce the voltages when they are not needed.

I've stopped trying to find the max speed because I personally can't see what use it is, I dislike taking the voltages over recommended max, and of course its not one of the 'special' chips anyway so will never achieve the numbers that some people . Also max speed would be different booted to Linux or straight to DOS. So - the only true way to usefully compare has to be the one that allows you to use the system i.e. play games, run benchmarks etc. For example - if you're going to reflash your SSD or Video BIOS - would you trust this OC? :scared:

I found my personal sweet-spot now at 4.35 Ghz 207 x 21 - stable after many hours of testing (but I must be honest and say I reset stock settings when I flashed by SSD yesterday - primarily because it was a destructive backflash to remove a beta release that wrote itself to some wrong locations).

I run my system with everything turned on so the voltages and frequencies reduce when idle etc. The system also shuts off fans as needed - for example when the GPU is not in 3D mode it doesn't need the fan running on its radiator to keep itself in mid-30's. Those that know me know I can't stand noise!

4.4 gig (210 x 21) is 97% stable - it will work for ages and Prime etc - but every so often little stuff will happen like a Gadget will stop working for no reason - so it's not a 'useful' overclock.

I'll put my 4.35 setting in my sig. I understand the Classy settings pretty well now -(thanks to lots of reading and playing) so I will be able to help people in future I think.

In truth the Classified is very similar to the Rampage II Extreme performance-wise - interesting to note that the the results I obtained were very close with both systems - and in fact not a great deal higher than the straight P6T which was stable at 205 x 21.

So Nick, depending on how much 'spare' money you have, I would say that you might not get massive improvements with a different system - well nothing that you will actually be able to run 24/7 or anything.

As usual, in retrospect, I don't think all the money I spent recently was worth it - to be honest I waste a great deal of money on PCs - certainly a lot more than I would ever own up to! I started to list what I've bought this year and I had to stop ... the overall cost would have been enough to buy a decent second hand bass boat!

But of course - I know I'm not alone on this site !! ;)

[nickpc]

i agree glyn , im just pissed because i know this cpu has more in it but the mobo is letting me down, but i just have to suck it up because im not gonna spend $650 on another board, well not right now, also glyn full respect for posting your settings, i love seeing what other ppl are doing with settings that way we can learn off eachother ! and we all end up with killer results, like i have said 100 times its not a competition, this place is about helping eachother , good stuff mate

imomun nice bclk mate looks like your board is doing a good job, can you get that high bclok with 21x multi ?

also mate how long did you run prime for @ 4.2 with them settings ? sorry but couldnt see what time you started stress testing on prime ,

[imomun]

i agree glyn , im just pissed because i know this cpu has more in it but the mobo is letting me down, but i just have to suck it up because im not gonna spend $650 on another board, well not right now, also glyn full respect for posting your settings, i love seeing what other ppl are doing with settings that way we can learn off eachother ! and we all end up with killer results, like i have said 100 times its not a competition, this place is about helping eachother , good stuff mate

imomun nice bclk mate looks like your board is doing a good job, can you get that high bclok with 21x multi ?

also mate how long did you run prime for @ 4.2 with them settings ? sorry but couldnt see what time you started stress testing on prime ,


Thanks mate, I wish you also get the same, though having same batch doesnt essentially mean same results as every chip is unique.

Always at first test your max stable BCLK with lower multi. Try bumping up the pcie frequency to 105 and the voltage a little see if you can get more BCLK or not. also set the rams to 9 9 9 24 2T 1.6v 2:8 and if doesnt improve try lower the ratio like 2:6 hope these will help, keep us updated :rolleyes:

21 multi is impossible as im on air (are you trying to fry my chip lol) but I know it will do infact it had a proven record of 236 BCLK with 21 multi.:tongue:

Half hour may be not enough for a lot of people but with that volt im happy as long I stay stable in most application, did priming for 15 hours before with 1.225v in bios so with 1.218 should last 4-6 hours. ;)

I got another i7 920 D0 brilliant batch 3845B260 I heared it gets you around 4.8ghz @1.46v on water. havent opend it though for testing.... might try to sell later as its just lying around :rolleyes:

I thought this thread is i7 920 overclocking by batch # so far dont see any more batch results, getting a bit boaring ... come on guyz .... theare are so many goood batches cameup later in 2009!

[jebo_4jc]

My 3904A361

So far, 199 BLCK needs 1.35v vcore. The lowest QPI I've found stable so far is around 1.31v, but I think that can go lower (running OCCT right now).

[nickpc]

Lolz


230 Max stable BCLK on P6T Deluxe :cool: (achived so far)

4200MHz @ 1.22v (prime stable) 24/7 Settings


http://img401.imageshack.us/img401/193/69453143.jpg

Bios settings are

Corsairs XMP
1600mhz 7-7-7 20 1T
ratio: 2:8
cpu multi: 21
BCLK 200
PCIE 100
CPU core voltage 1.218v
Dram voltage 1.5v
QPI 1.2v
Everything else is set on auto !

One funny thing I have noticed it doesnt show 208 BCLK on CPUZ even when on bios its 208 BCLK CPUZ shows 206.8 BCLK, dont know why, and any more BCLK after that requires significant voltage increase!

no offence mate but you say your voltage is



CPU core voltage 1.218v


and cpuz says 1.224v under 100% load, i am not a rocket scientist but under 100% load you should have less than what you have in bios not more

to show you why i am saying what i am i set 1.225 in bios and cpuz shows 1.2v and thats not even under load thats called vdrop , and this is not the first system i have overclocked to know that , i have gotten vdrop with every system and then if i put it under 100% load my voltage will drop even further,

just so you know mate i might look stupid but im not, lol, like i said this is not a competition but it helps if if things make sense, anyway i wont say anything else im over it :D maybe you have the best mobo in the world better than the EVGA classified and get + .006 v in cpuz when you go under 100% load instead of - voltage like the rest of the overclocking comunity


http://img245.imageshack.us/img245/9358/1225v.png (http://img245.imageshack.us/i/1225v.png/)

i admit the gigabyte is doing a crappy job for me and i think that i would need less voltage for same clocks if i had a classified, but i just find it hard to believe that you would get no vdroop and no vdrop as even like glyn said he even gets vdrop and vdroop on the classified

and im sorry if im wrong :D

[imomun]

Well belive it or not setting 1.218v in bios shows 1.224v when priming in my PC. And sorry I cant do anything about it even if its a crime.

Nickpc I suggested you few settings to improve your BCLK not to look you bad, frankly theres no ending in learning and im also learning everyday. Ignore my suggestions if im wrong.

I still havent figure out why setting 208 BCLK in bios shows 206.8 in CPUZ. Does any one has simmilar result? :confused:

[nickpc]

like i said sorry if im wrong , good stuff mate :D and yes we are always learning ! and nup i havent had that problem

[Glyn]

I still havent figure out why setting 208 BCLK in bios shows 206.8 in CPUZ. Does any one has simmilar result? :confused:

Even on the Classified I don't always get what I set - BCLK is consistently .5 down - but I'm not concerned about that - many things under-read and I just compensate for them.

One that does concern me however is DRAM/ DDR - it always reads 0.03 higher than set!?! So, for example, if I set 1.65 v (memory spec) - the Monitored value is 6.8 v. I guess I will need to get my voltmeter out and measure it to see which is true.

I guess the point is that what we actually set (and see) through the BIOS are not necessarily 'true' - which I imagine is exactly what Imomom is showing.

Hmmm - Imomom sounded sort of Egyptian or something - but as I typed it I wondered whether it has another meaning - "I'm a mom?" - When I was heavy into Everquest my main was always called "Paphos Nomoni" (of course he was a High Elf Paladin fighting for honor and justice and the Guild all knew him as Pappy) - but anyway the name was obviously a twist from the city in Cyprus (my very favorite place where I would love to retire to) http://wikitravel.org/en/Cyprus - however it also was a little joke with my daughter "Pap - has - no - money" :tongue:

[imomun]

Even on the Classified I don't always get what I set - BCLK is consistently .5 down - but I'm not concerned about that - may things under-read and I just compensate for them.

One that does concern me however is DRAM/ DDR - it always reads 0.03 higher than set!?! So, for example, if I set 1.65 v (memory spec) - the Monitored value is 6.8 v. I guess I will need to get my voltmeter out and measure it to see which is true.

I guess the point is that what we actually set (and see) through the BIOS are not necessarily 'true' - which I imagine is exactly what Imomom is showing.

Hmmm - Imomom sounded sort of Egyptian or something - but as I typed it I wondered whether it has another meaning - "I'm a mom?" - When I was heavy into Everquest my main was always called "Paphos Nomoni" (of course he was a High Elf Paladin fighting for honor and justice and the Guild all knew him as Pappy) - but anyway the name was obviously a twist from the city in Cyprus (my very favorite place where I would love to retire to) http://wikitravel.org/en/Cyprus - however it also was a little joke with my daughter "Pap - has - no - money" :tongue:

Yes as you have said its nothing serious but was just wondering why only in 208bclk as in other no for instance like if i set in bios 212 cpuz shows 211.8 or 211.9 but when I set 208bclk cpuz shows only shows 206.8 or 206.7 it never shows 207.8 or 208 I guess it doesnt like that no :tongue:

Yes your absolutely right mate what we actually set (and see) through the BIOS are not necessarily 'true' :rolleyes:

Lol aww thank you for the info, i didnt know the meaning before, thas actualy my and my wifes nick names combined together imo+mun=imomun lolz :) thanks mate.

[Glyn]

Well - I kept playing and pushing things but this morning suddenly I realized that I only had to keep Auto set for VCore to allow the system to control the voltage and reduce it when idle - it is nothing to do with BCLK on this board . :rolleyes: On the P6T it was set at 151 BCLK no matter what VCore you had. So, after running some tests, I now have a completely stable overclock at 194 BCLK with VCore AUTO - but VDroop OFF so it gives me a steady 1.26V at load :)

So, what this means, is that I have the best of both worlds right now - a bit over 4 gig OC but also Speedstep and VCore control so, when idle, it drops to x12 multiplier AND VCore under 1 volt! A sort of energy saving overclock :luv: I'll probably use this as my 'normal' setting .. maybe see if I can up it a bit more? ... but to be honest benchmarks are not greatly different from 210BCLK because I had to loosen memory so much to get that.

Vcore needs ramp up very fast with this chip after about 195-197 and I was getting very close to 1.5V to stabilize after 215. Its kind of scary to see temps hitting 95 !!! :scared:

I don't imagine this means much to anyone else but it is the first time I feel vindicated buying the new board and cpu(s).

[jebo_4jc]

That's good info actually.

So, to get it straight: you have to leave vcore at Auto to keep speedstep intact?

[Glyn]

That's good info actually.

So, to get it straight: you have to leave vcore at Auto to keep speedstep intact?

Not quite - Speed Step will work on anything but on this board this only controls the multiplier stepping. x12 > x21 etc.

Its the bios voltage reduction thing that must have 'AUTO' set for VCore i.e. at idle its like 0.9v then goes up to 1.36 ish depending on BCLK and VDroop settings.

The other thing I discovered was that if you use anything other than the 20x multiplier then HT is deactivated and the option actually gets grayed out in the bios. I was playing with 19x to see how that would work and see what HT would do. Many people report better stability with ODD multipliers. It gave a very stable 4.2 overclock (220x19) but much higher and you are exceeding the 4gig spec for QPI (x 18 is lowest you can set on 920). Its this 4 gig limit that makes 4.6 gig (222 BCLK) such a BIG hurdle with 20/21 multiplier. This board won't allow you to set 21x directly unlike some others.