Core i7 Overclocking by Batch #

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12-22-2009, 01:21 AM
ChaosAD

Nice to know Clint. 4Ghz @ 1.2v is very good. Lap that True Black (not sure about the cpu though :P ) and push it some more :)
12-22-2009, 01:50 AM
Clint

Quote:

Originally Posted by ChaosAD

Nice to know Clint. 4Ghz @ 1.2v is very good. Lap that True Black (not sure about the cpu though :P ) and push it some more :)

Will do:up:

Gonna examine the CPU a bit more closely first, always a bit weary messing about with those...;)

Once done I will post screens and bios settings for any possible interest.
12-22-2009, 02:57 AM
Salamndar

Damn it ! Man get yourself some water cooling stuff and overclock your CPU to 4.5 NOW
12-22-2009, 04:08 AM
Homeless2

Batch 3931A

1.3vcore bios (1.264 cpuz)

21x191 20 linpack / 12 hr prime stable
12-22-2009, 06:00 AM
rusty

Quote:

Originally Posted by Clint

Will do:up:

Gonna examine the CPU a bit more closely first, always a bit weary messing about with those...;)

Once done I will post screens and bios settings for any possible interest.

do some linx :)
12-22-2009, 12:03 PM
Blackbird_CaD_

Quote:

Originally Posted by Clint

Well, I did use the auto option in MSI bios to help me get up to 4.0-4.2 on max auto volts which was 1.365v. Auto feature gave me a max 1.7v on pll and 1.39 on qpi. In a perfect world the auto function would know the specific character of my CPU, but I guess they rather trow in a bit too much on the qpi when going on high bclk and staying "safe" on the pll (wich are rumoured to kill CPU's). I did some quick research and lowered the qpi to be a bit closer to my intended vcore of 1.2v and landed on 1.35v. As for pll even Intel states that 1.8v is fine, so I changed that to 1.8v. Then I just throw a session of Prime95 and started to lower the vcore in windows with the MSI oc util. Landed on 1.2v, you can imagine my joy when I continued to lower the voltage and the primesession kept on going... :D

4GHz on 1.2v is not supergood, but it sure is a helova lot betta than 4GHz on 1.365v... Just bought a True Black and gonna lap that and while I'm at it lap the CPU as well. Just for fun...

You seem to have a pretty nice CPU :P
But did it crash after 2h in prime? or didn't you just run it longer..?
My 920 have the same batch as yours =) but i haven't build my PC with the CPU yet.
12-22-2009, 09:30 PM
Clint

Quote:

Originally Posted by Blackbird_CaD_

You seem to have a pretty nice CPU :P
But did it crash after 2h in prime? or didn't you just run it longer..?
My 920 have the same batch as yours =) but i haven't build my PC with the CPU yet.

I did stop there, no need to let it run longer before I'm done with lapping and such. I do the final stabilitytestings when it's mounted in chassis.
12-23-2009, 02:17 AM
Lome

920 3941B076 11/11/09
200x21 4.2GHz @1.3v

linpak64 stable
ucore realy doesnt like anything other than 2x ram
probly anus's regulation to blame for that though
12-23-2009, 04:26 AM
AlfaBoy

Later i will post da batch, now i have some screens:

Asus R2E
920 D0 BATCH #: 3849A765
OCZ Reaper 15000 3x2GB
EVGA 260 GTX SSC
PC Power & Coling 750W

http://img691.imageshack.us/img691/9...tasusprobe.png

http://img69.imageshack.us/img69/1668/linx30min.png

Some 3D results:

http://img32.imageshack.us/img32/582...k200622193.png

I have water cooling in the cpu and in the 260GTX.
12-23-2009, 06:04 AM
madmax999

Enable HT, you will get better score in 3DM06 ;)
12-23-2009, 06:49 AM
AlfaBoy

i think i dont have any advantage to have HT on for gaming, because of that i dont have it enable, but i will try, thanks for the tip.:up:
12-23-2009, 07:33 AM
AceBaran

Hi wanted to add mine too Batch 3836A288

http://img94.imageshack.us/img94/756...d440566620.jpg
12-23-2009, 08:39 AM
madmax999

Quote:

Originally Posted by AlfaBoy

i think i dont have any advantage to have HT on for gaming, because of that i dont have it enable, but i will try, thanks for the tip.:up:

Not in gaming, in 3DM06 you will get better CPU score with HT on and because of that overall 3DM06 score will be higher :)
12-23-2009, 09:25 AM
Blackbird_CaD_

Quote:

Originally Posted by madmax999

Not in gaming, in 3DM06 you will get better CPU score with HT on and because of that overall 3DM06 score will be higher :)

Who cares about 3DM06 score ^^
Or well maybe some people care of it because of e-penis.. :P
12-23-2009, 11:31 AM
NETio

HT gives performance gains but also makes your processor run much hotter. Unless your temps are very cool right now I would not recommend enabling HT. I have a 3942A, I'll post OC later.

Foxconn Bloodrage GTI
G.Skill DDR3 1600 8-8-8-24 1.5v

Stepping: D0
Batch: 3942A

Reseved (I'll have it done by end of week)
12-23-2009, 01:28 PM
AlfaBoy

post updated, my 920 batch is 3849A765.

I dont now why but when i pass 214 blck my 260gtx have some problems in 3D, 4500MHZ is very nice overclock :cool:
12-23-2009, 05:20 PM
NETio

Depending on your board, try setting your PCIe clock to 101 instead of 100.
12-23-2009, 09:18 PM
terrybogard

Quote:

Originally Posted by NETio

HT gives performance gains but also makes your processor run much hotter. Unless your temps are very cool right now I would not recommend enabling HT. I have a 3942A, I'll post OC later.

Foxconn Bloodrage GTI
G.Skill DDR3 1600 8-8-8-24 1.5v

Stepping: D0
Batch: 3942A

Reseved (I'll have it done by end of week)

I'll be looking forward to you're results. I have a 3943A D0. If you can, mind listing specific numbers, qpi/vtt & etc. I'm still waiting on my cpu cooler & probably won't be until late next week :(

Thanks in advance.

edit: I'm glad you guys are pushing more than 4GHz; once I hit that point of 4.0GHz I'm done. Maybe shoot for lower vcore, but 4.0GHz is what I want, nothing more.
12-23-2009, 10:23 PM
AceBaran

Sold my 965 EE, got a 920 3943A521.. are these good batches ?
12-24-2009, 01:11 AM
zalbard

Quote:

Originally Posted by AlfaBoy

I dont now why but when i pass 214 blck my 260gtx have some problems in 3D, 4500MHZ is very nice overclock :cool:

Try higher IOH VCore and QPI PLL, and keep these two values the same. :up:
12-25-2009, 11:56 AM
Phaseshift

whats the consensus on the 3941B045 Batches?
12-25-2009, 08:14 PM
NETio

3942a

CPU: i7 920
Stepping/Revision: D0
Batch: 3942A
MOBO: Foxconn Bloodrage GTI (BIOS: P09)

4.1 GHz (210x20) @ 1.36v LinX 100+ pass stable http://valid.canardpc.com/show_oc.php?id=906494

I think I could get by with 1.5v just fine or even 1.4 but I am working on getting up to 4.2 GHz right now so I went ahead and set the voltage up a bit.

Overall, this isn't the best chip out there but it will serve my needs just fine. Temps stay well under 70 running LinX, the hottest core stays around 60 running P95 Small FFT. Basically, :up:
12-26-2009, 03:37 AM
jonathankru

CPU: i7 920
Stepping/Revision: D0
Batch: 3942A497
MOBO: GA-X58-UD4P

http://i46.tinypic.com/14917p1.jpg

And will do 4.0Ghz at 1.3V
12-26-2009, 03:52 AM
Blackbird_CaD_

Quote:

Originally Posted by jonathankru

CPU: i7 920
Stepping/Revision: D0
Batch: 3942A497
MOBO: GA-X58-UD4P

I have since managed to run vcore at 1.344V will change screen shot later

(picture)

And will do 4.0Ghz at 1.3V

1h Prime95 doesn't say much..
The most interesting thing is if it's stable or not..
12-26-2009, 04:11 AM
jonathankru

Quote:

Originally Posted by Blackbird_CaD_

1h Prime95 doesn't say much..
The most interesting thing is if it's stable or not..

Alright. What would you like then?I see many posts of OCCT for an hour so i figured that 1 hour prime would be fine.I have also run 3dmark06 and Vantage runs without failure. And it hasn't frozen yet.

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