i7 920 @4769Mhz TRUE120 AIR !

Now that I've found my max Bclk limit of 228-230Blck, it's time to revisit max i7 920 AIR overclocks with HT disabled :D

Room temp = 21.5C - 23.5C

System specs

• Intel Core i7 920 3836A756
• Thermalright Ultra 120 Extreme + LGA1366 Bolt Thru kit + 2x 120x38mm Scythe UltraKaze 2000rpm 87cfm fans in push/pull
• DFI LP UT X58-T3EH8 R.A51 - 01/06 beta bios
• 128MB Gainward FX5200 PCI
• 2x1GB Corsair DDR3-2133C9DF Dominator + 1GB G.Skill PC3-12800HZ (3x Samsung HCF0)
• Ram cooling: 3x 60x25mm Sunon 23.5cfm Maglev fans
• 80GB Hitachi 7K80 SATAII
• Pioneer DVD-RW
• 1KW Corsair HX1000 psu
• WinXP Pro SP3 full nLite updated hotfixes / Windows 7 beta dual boot

i7 920 3836A756 @4769Mhz at 1.59375v bios

http://valid.canardpc.com/cache/banner/486620.png

http://fileshosts.com/intel/DFI/DFI_...z_valid_tn.png


Max screen capture capable @4680Mhz at 1.5875v bios

http://fileshosts.com/intel/DFI/DFI_...12517/cpuz.png

Max Super Pi 1M & Pifast
@4677Mhz at 1.5875v bios

40416 efficiency :)

http://fileshosts.com/intel/DFI/DFI_...1m_8m641ms.png

http://fileshosts.com/intel/DFI/DFI_...pifast1884.png

Max Super Pi 32M

@4638Mhz - more efficient run (2178985)

http://fileshosts.com/intel/DFI/DFI_...7m49s781ms.png

@4652Mhz - less efficient run (2184839)

Lucky I took this screen capture first, as system rebooted before I could load the other cpuz instances :o

http://fileshosts.com/intel/DFI/DFI_...7m49s656ms.png

Bench rig photos

http://nx.i4memory.com/reviewimages/...s/IMGP9377.jpg

http://nx.i4memory.com/reviewimages/...s/IMGP9384.jpg

http://nx.i4memory.com/reviewimages/...s/IMGP9387.jpg

Probably at the limit of this cpu on air, close to swapping cpu out and testing the other i7 920 3836A756 I have :D

:clap:OMG:clap:

what are your the temps??

Really nice score,,,TRUE120 is still the excellent choice for air cooling :)

good job

that is Sweet, love t hat rig... :up:

sick chip eva, the 32M is quite amazing on air :up:

sweet, the most I have gotten on air with my TRUE is 215x21

Quote:

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Originally Posted by Yil

:clap:OMG:clap:

what are your the temps??

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couldn't bare to look LOL... bios had 43-49C.. let's just say room temp was 21C when i started the bench session, and when the session ended room temp rose to 23-25C :D

Quote:

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Originally Posted by amd freak

Really nice score,,,TRUE120 is still the excellent choice for air cooling :)

good job

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Thanks... got no other choice since only heatsink with 1366 mount I have on hand right now. Got Vendetta2 here but no 1366 mount.

Quote:

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Originally Posted by systemviper

that is Sweet, love t hat rig... :up:

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Quote:

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Originally Posted by Achill3uS

sick chip eva, the 32M is quite amazing on air :up:

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thanks, i suspected my previous 4610mhz with 21x multi was bclk limited so once that was sorted could squeeze a bit more. Now I'm both mem clock limited on 10x multi (need some A-data 2133x hehe - hope A-Data is reading this :D ) and cooling limited I suppose :)

Quote:

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Originally Posted by mikesrex

sweet, the most I have gotten on air with my TRUE is 215x21

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congrats to ya too :D

WOW eva, you never stop do you :P
That is some impressive chip you got there, remind me of its full batch# ?

You go to go subzero with this and the real limit !

Nice clocks EvaDFImaster! :cheers:

:shocked: amazing :shocked: congrats!

that i7 920 is starting to look nice eva.. lol i can bench my 920 on 4769mhz clocks in 3dmark 06 with my cascade.. these chips scale really terribly with cold.

The Eva series was born to run SPI32M on DFI (lol) :p: Very nice work mate that's one hell of a chip/board combo. Crazy it raised room temp so much during the benching.

crazy results George! that chip is HOT! :D

Questions:

1) Did you lap your TRUE and processor?

2) Have you tried some 3000rpm fans, since these are kamikaze runs anyway?

Great work...

absolutely insane eva.

Quote:

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Originally Posted by The-Fox

WOW eva, you never stop do you :P
That is some impressive chip you got there, remind me of its full batch# ?

You go to go subzero with this and the real limit !

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batch is plastered across every screenshot ;)

Quote:

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Originally Posted by Jor3lBR

Nice clocks EvaDFImaster! :cheers:

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thanks mate :)

Quote:

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Originally Posted by thienloi

:shocked: amazing :shocked: congrats!

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thanks :)

Quote:

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Originally Posted by Solarfall

that i7 920 is starting to look nice eva.. lol i can bench my 920 on 4769mhz clocks in 3dmark 06 with my cascade.. these chips scale really terribly with cold.

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thanks... dont say that i'm hoping my 920 continues to scale with colder temps LOL

Quote:

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Originally Posted by CryptiK

The Eva series was born to run SPI32M on DFI (lol) :p: Very nice work mate that's one hell of a chip/board combo. Crazy it raised room temp so much during the benching.

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hehe thanks... i'm surprised how well the 1GB Gskill PC3-12800HZ HCF0 module held up against the Corsair 2133 stuff!

Quote:

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Originally Posted by jugeen

crazy results George! that chip is HOT! :D

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thanks all i need is some of those new elpida ics for 1150+ 7-8-7-x action :D

Quote:

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Originally Posted by DavidNJ

Questions:

1) Did you lap your TRUE and processor?

2) Have you tried some 3000rpm fans, since these are kamikaze runs anyway?

Great work...

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thanks not lapped... haven't tried the 3000rpm versions, but i do have some delta 190cfm ones lying around from my crazy high speed cfm fan obsession days haha

http://www.fileshosts.com/pentium4/D...e_pro2_106.JPG

:D

Quote:

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Originally Posted by ReverendMaynard

absolutely insane eva.

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thanks :)

awesome temps and crazy OC, great job.

Impressive, as always. DFI showing a lot of clout with their x58 offerings, but nothing like the hands of a master clocker to coax the extra juice out of the hardware. :up:

amazing oc on air! I can't wait till my true comes in!

George, you just have to be a cyborg or something like that. I cannot imagine when you got time to sleep, eat or to do other essential things pulling new incredible results everytime I have a look at "Xtreme overclocking" forums here. :D

You be a dayum machine, huh!? :pimp:

Quote:

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Originally Posted by NameTaken45

awesome temps and crazy OC, great job.

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thanks... now to aim for sub 7min 40s hehe

Quote:

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Originally Posted by Zucker2k

Impressive, as always. DFI showing a lot of clout with their x58 offerings, but nothing like the hands of a master clocker to coax the extra juice out of the hardware. :up:

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yup DFI X58 really holding it's own especially in aiding mem clocks :D

Quote:

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Originally Posted by knissel

amazing oc on air! I can't wait till my true comes in!

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remember more fanage the better :D

Quote:

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Originally Posted by SAE

George, you just have to be a cyborg or something like that. I cannot imagine when you got time to sleep, eat or to do other essential things pulling new incredible results everytime I have a look at "Xtreme overclocking" forums here. :D

You be a dayum machine, huh!? :pimp:

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darn my secret is out.. guess which is me :D

http://fileshosts.com/anime/evaunit0...vaunits_01.jpg

Humm... you must be Mr. Red as he's the prettiest! ;)
Did I win a lollypop? :D

WOW! Was this chip tested on any other boards? SWEETAZZ!

Quote:

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Originally Posted by SAE

Humm... you must be Mr. Red as he's the prettiest! ;)
Did I win a lollypop? :D

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haha avatar gave it away i guess :)

Quote:

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Originally Posted by STi489

WOW! Was this chip tested on any other boards? SWEETAZZ!

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no other X58 here yet but would be nice to compare :)

damn nice George

give some cold and get the WR :)

(i run 4780MHz on air ......chilled air hehehe)

Quote:

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Originally Posted by eva2000

darn my secret is out.. guess which is me :D

http://fileshosts.com/anime/evaunit0...vaunits_01.jpg

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eva2000 = Evangelion year 2000 ,the second impact?????

japanese anime ???

4780mhz! dam nice ... i'll have to drop my mem multi to 8x and see how much more there is :D

yup Eva = Evangelion while 2000 was the year after I got into NGE/Anime, but coincidentally is the year of the 'Second Impact' in the anime series :D

nice work again George! that 32M is really nice! did you ever get copy waza sorted?

Quote:

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Originally Posted by eva2000

couldn't bare to look LOL... bios had 43-49C.. let's just say room temp was 21C when i started the bench session, and when the session ended room temp rose to 23-25C :D
:D

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On air :eek: man thats really nice...... you did good on max bblck 230+ too:)
I sure hope you at least set the cpu shut off temp to 90c or less:p:

good clock eva...;)
dfi one is coming to me ..

Quote:

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Originally Posted by TheKarmakazi

nice work again George! that 32M is really nice! did you ever get copy waza sorted?

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thanks... CW's full gain is alluding me but did better with maxmem set

Quote:

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Originally Posted by slapmehard

On air :eek: man thats really nice...... you did good on max bblck 230+ too:)
I sure hope you at least set the cpu shut off temp to 90c or less:p:

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haha i disabled temp shutdown limit in bios :D

Quote:

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Originally Posted by xbrian88

good clock eva...;)
dfi one is coming to me ..

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thanks... congrats - for first time DFI X58 nice read http://i4memory.com/showthread.php?t=12855 :D

Holy :banana::banana::banana::banana:!
its realy amazing frequency and more amazing when it´s only on Air
good job :up:

thanks :D

Get some sleep and stop benching eva :rofl:
J/K, you never stop to the top :D

BTW, did you do anything special to run those RAM sticks at that insane speed ?
I just got G.Skill 1600Mhz Pi Black CL8 to play with and I can seem to hit 32M with 2105 Mhz @ 9-10-9-24 @1.8v.
AFAIK they use the same chips like yours, Samsung HCF0, right ?
I really want to get to 215 bclk with x10 memory multy and break that 8minute barrier for SuperPi32M.

Btw, I think your 32M run is amazing but the result seems somewhat slow, I would imagine you get into the 7m30s range.

Keep up the good work :up:

Quote:

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Originally Posted by The-Fox

Get some sleep and stop benching eva :rofl:
J/K, you never stop to the top :D

BTW, did you do anything special to run those RAM sticks at that insane speed ?
I just got G.Skill 1600Mhz Pi Black CL8 to play with and I can seem to hit 32M with 2105 Mhz @ 9-10-9-24 @1.8v.
AFAIK they use the same chips like yours, Samsung HCF0, right ?
I really want to get to 215 bclk with x10 memory multy and break that 8minute barrier for SuperPi32M.

Btw, I think your 32M run is amazing but the result seems somewhat slow, I would imagine you get into the 7m30s range.

Keep up the good work :up:

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is that 6GB or 3GB G.SKill PC3-12800 BPI ? i think both are Samsung HCF0

nothing special besides musical chairs (dimm slots) testing of each modules to find which dimm slots each module likes - memory tip #1 at http://i4memory.com/102537-post3.html :D

32m times are without copy waza so yeah maybe a bit slow that and with tighter trfc an main timings would be faster but probably limit of my modules

Musical chairs reminds me of kindergarten days :rofl:
I would try it out, funny method but if it works i don't care :D
It is the 6GB Kit (2GBx3).

Thanks for the tip :up:

What voltages you needed to reach that speed ? my sticks hit the 1.8v sweet spot, anything above/below and I get crashes at high speeds.

I am new to the "copy waza" method, do you have short explaining guide for that ?

i'm wrong person to ask about CW as i haven't got the hang of it yet (very little or no gain compared to non-CW pi runs) but read http://www.xtremesystems.org/forums/...ad.php?t=49345

what voltage to reach what speed ?

Thanks for the links :D
I meant voltage for the Dram.
What Dram and QPI/VTT voltage you needed to get them to ~2200Mhz ?

for DDR3-2228Mhz 9-9-9-24 32M pi need CPU VTT = 1.6-1.61v and VDIMM 2.025v held back by Gskill 1GB module in my mix considering DDR3-2133 corsairs hit DDR3-2010mhz 9-9-9-24 at 1.68v

Amazing results!:up:

What is the max cpu vtt you can run for 24/7 use?

Wow that is some great numbers, wish i had that chip /:woot:
as always some outstandign work :up:

how much ballpark do you rock the qpi voltage, i see the vcore is 1.6 and i not sure how high i can go for limited runs with QPi

Quote:

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Originally Posted by eva2000

i'm wrong person to ask about CW as i haven't got the hang of it yet (very little or no gain compared to non-CW pi runs) but read http://www.xtremesystems.org/forums/...ad.php?t=49345

what voltage to reach what speed ?

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Hint:OCX SPI Tweaker
Gain about 6-7's on most of the rig i tested:ROTF:
I think there are some execution trick which i never get hang of it yet:p:

Quote:

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Originally Posted by woffen

Amazing results!:up:

What is the max cpu vtt you can run for 24/7 use?

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intel spec'd 1.35-1.375v IIRC

Quote:

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Originally Posted by systemviper

Wow that is some great numbers, wish i had that chip /:woot:
as always some outstandign work :up:

how much ballpark do you rock the qpi voltage, i see the vcore is 1.6 and i not sure how high i can go for limited runs with QPi

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CPU VTT = uncore volts so around 1.6v heh

Quote:

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Originally Posted by OC4/3

Hint:OCX SPI Tweaker
Gain about 6-7's on most of the rig i tested:ROTF:
I think there are some execution trick which i never get hang of it yet:p:

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with OCX SPI Twker i get around 1-3 seconds heh

Looks nice ;)

It would be nice to see that CPU with some Ln2... If it can get that far on air, imagine on somthing more extreme!

This is incredible. Just absolutely incredible. Be careful with that Chip...it's Golden. :)

what the

that's damn good, congrats.

I think in march I will be upgrading. The 920 looks good for what I will need

Quote:

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Originally Posted by eva2000

intel spec'd 1.35-1.375v IIRC

CPU VTT = uncore volts so around 1.6v heh


with OCX SPI Twker i get around 1-3 seconds heh

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But it is on some slow rig:rofl:
Q6600@3.8ghz + T Power I45 and 2x2GB Team Xtreem Dark 4GB kit:D
Anyway,CW is quite system dependent from what i read

WOW Eva...amazing results...I thought I had a good chip with 4.5GHz SPI runs on cold water....I've changed my mind :p:

Quote:

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Originally Posted by expect91

Looks nice ;)

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thanks :)

Quote:

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Originally Posted by T_Flight

This is incredible. Just absolutely incredible. Be careful with that Chip...it's Golden. :)

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Yup i have a feeling theses even more with the right memory modules and/or settings for higher bclk than 228-230 - testing some new beta bios right now :D

Quote:

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Originally Posted by OC4/3

But it is on some slow rig:rofl:
Q6600@3.8ghz + T Power I45 and 2x2GB Team Xtreem Dark 4GB kit:D
Anyway,CW is quite system dependent from what i read

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i haven't gotten CW to work since s478/775 days either heh

Quote:

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Originally Posted by miahallen

WOW Eva...amazing results...I thought I had a good chip with 4.5GHz SPI runs on cold water....I've changed my mind :p:

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Not bad ya self... :D

Been doing some video encoding lately at comfortable 4009mhz at 1.328-1.344v and interesting results

http://fileshosts.com/intel/DFI/DFI_...imes_chart.png

SICK George, you are just tearing up the KPI model huh ?

With threads like this we see why your name is in green!:up:
One of the few people here that have a total understanding of the systems and why you get what most can not.:clap:

Quote:

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Originally Posted by eva2000

haha i disabled temp shutdown limit in bios :D

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:rofl: So that's why you didn't want to look at the temps heh.

It's very surprising the gskill module kept up to the extent it did, although it wouldn't be able to match the corsairs in outright speed of course.

Interesting encoding results too.

Quote:

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Originally Posted by Oliver

SICK George, you are just tearing up the KPI model huh ?

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sure am look at this pi efficiency

Best 32M Pi effiency I've managed to date = 3864.4 x 550.891 seconds = 2128863

http://fileshosts.com/intel/DFI/DFI_..._sgeverest.png

Quote:

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Originally Posted by Movieman

With threads like this we see why your name is in green!:up:
One of the few people here that have a total understanding of the systems and why you get what most can not.:clap:

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thanks.. sure is... systematically test every part of the system then combine what you've learnt :D

Quote:

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Originally Posted by CryptiK

:rofl: So that's why you didn't want to look at the temps heh.

It's very surprising the gskill module kept up to the extent it did, although it wouldn't be able to match the corsairs in outright speed of course.

Interesting encoding results too.

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yeah G.skill still keeping up

CPUZ Validation
@DDR3-2247Mhz 8-9-8-22 at 2.025v bios

http://valid.canardpc.com/cache/banner/491726.png

http://fileshosts.com/intel/DFI/DFI_...uzvalid_tn.png

Heh that poor stick is flying, nice work. Nice SPI32M run too that's fantastic efficiency. Any idea how well samsung HCF0 IC's withstand vdimm like 2.025v long term?

Thanks

Samsung HCF0 handled 1.9-2.0 fine on X48 and has no probs on X58 for benching. Wouldn't run it 24/7 though :D

did some DMM measurements and seems both BIOS, SG and CPUZ with vdroop disabled over report real volts - so above benchies were actually using less vcore than stated hehe

PSU = HX1000

http://nx.i4memory.com/reviewimages/..._utx58_dmm.jpg

http://nx.i4memory.com/reviewimages/...ble_draft2.png

1. Vcore over reports slightly in VDROOP Enabled mode, but severely over reports with VDROOP Disabled i.e. 1.23v bios/SG reported = 1.206/1.203v idle/load DMM measured!
2. VDIMM over reports by 0.005v
3. CPU VTT undervolts by 0.012v to 0.014v at idle but jumps 0.009v higher under windows load but still is 0.005v under volted under load compared to what is set in bios

Very nice overclocking on air!

you going to push it on sub zero?

Thanks !

Eventually might try single stage 1/4HP (never used DI/LN2 before), but I usually take my time with a new setup air then water to get to know every part of the system - especially focusing on my favourite part = memory :D That and I still have my 2nd i7 920 3836A756 to test on same air cooling to see how it compares to the above identical batch sibling :D

I'm afraid a 1/4hp won't cut it.. my 1/3hp is struggling madly and it's already tuned for the highest possible load it can cope with (= 280W) ...
Of course, for your kind of short-load quick benching, it might just do ;)