Core i7 Overclocking by Batch #

[Chicken Patty]

I've tried to set up another four times the cooler and reapply the thermal compound NT-H1 and AS5 and no improvements in temperature. Ambient temp 28°C.

What is the temperature of its core i7 920 stock clock in Prilimatech Megahalems?

Well I don't know about stock, but at 3.8 GHz @ 1.17v idle is about 30-32ºc and load is no more than 59-61º with my i7 and the Megahalems.

[_AntLionBR_]

Well I don't know about stock, but at 3.8 GHz @ 1.17v idle is about 30-32ºc and load is no more than 59-61º with my i7 and the Megahalems.

Understood.

Here is something wrong with my system, just do not say what could be. Does the chip (cpu) can not have been so hot the factory?

Because I'm seriously thinking of changing the i7 930, but I can not tell if the problem will be solved.

[Chicken Patty]

Understood.

Here is something wrong with my system, just do not say what could be. Does the chip (cpu) can not have been so hot the factory?

Because I'm seriously thinking of changing the i7 930, but I can not tell if the problem will be solved.

I don't think it's the CPU. Have you checked the backplate, make sure its seated correctly. When you tighten down the mechanism its not heating a CAP or anything?

[_AntLionBR_]

I don't think it's the CPU. Have you checked the backplate, make sure its seated correctly. When you tighten down the mechanism its not heating a CAP or anything?

I've checked the blackplate, is secure. I'll do some more testing, if not solve the problem, I'll end up replacing the other cooler.

Because I've installed four times the cooler, and the problem still persists. The problem is whether the CPU (I don't know) or the cooler.

What do you think?

[CryptiK]

Hows the contact look when you remove the cooler?

Got pics?

[_AntLionBR_]

Hows the contact look when you remove the cooler?

Got pics?

Photos I don't have, but I will provide.

After I read the manual cooler with calm, I saw that I installed a piece called "rubber inlay" along with the backplate, this one:



This "rubber" is installed only with the socket 775, perhaps to get over it, the problem may be the temperature of the processor, because without this "rubber inlay" sink would have more contact with the processor, correct?

[scgt1]

Photos I don't have, but I will provide.

After I read the manual cooler with calm, I saw that I installed a piece called "rubber inlay" along with the backplate, this one:



This "rubber" is installed only with the socket 775, perhaps to get over it, the problem may be the temperature of the processor, because without this "rubber inlay" sink would have more contact with the processor, correct?

Remove that inlay and repost results after.

[_AntLionBR_]

Remove that inlay and repost results after.

It's what I'll do, problem is that I could corrupt the BIOS P6T Dlx, rewrite the BIOS when I post here the result. Thanks for the reply.

[scgt1]

How are you going to corrupt the board bios by removing a rubber grommet? You need to shut the system down then remove power via unplugging the cord to the psu or switching off the unit in the back. Then remove your inlay piece. LOL

[LennyRhys]

Figured I should make a contribution since I just got myself a 920 D0.

3910A250

Stable at 3.72GHz, 177x21, HT always on, stock vcore (cpuz reads 1.28v under load)

Max temps across cores 69-74C.

This is fine for me, not interested in 4GHz.

[_AntLionBR_]

How are you going to corrupt the board bios by removing a rubber grommet? You need to shut the system down then remove power via unplugging the cord to the psu or switching off the unit in the back. Then remove your inlay piece. LOL

When the processor was with the high temps (50~55ºC idle clock stock), I updated the BIOS thinking that would solve the problem, but to no avail. Then I want to go back to the BIOS version of the original P6T Dlx (0804) through the Asus Update and could not. That was when I managed to update the program AFUDOS, and from there system did not call more.

[Chicken Patty]

When the processor was with the high temps (50~55ºC idle clock stock), I updated the BIOS thinking that would solve the problem, but to no avail. Then I want to go back to the BIOS version of the original P6T Dlx (0804) through the Asus Update and could not. That was when I managed to update the program AFUDOS, and from there system did not call more.

let us know how it goes when you remove that rubber piece.

[zalbard]

What is the temperature of its core i7 920 stock clock in Prilimatech Megahalems?

I have around 55C under load at stock, 20-30 idling...

[DomagojX]

4000Mhz, 1.182v

[iTravis]

Lot of people here just need a low voltage to get to 4.0Ghz mark but mine requires a lot more (ie 1.33 to be stable at 4.0Ghz). At first I thought my chip sucks so I went to buy another D0 and got it 4.0Ghz stable at 1.2 but since I couldn't even reach 4.2Ghz stable with it, I think the decision to keep my old one is a good choice. Changing from air cool to watercool is a huge improvement as well since I only got it to 4.0Ghz with the TRUE/MegaShadow but now I can run at 4.5Ghz LinX stable with my new WC setup.

Batch #: 3912B168
4.2Ghz with TRUE/MegaShadow:


4.2Ghz with water cooling:


Best I can get so far:

[x3m_gogo]

i7-920 - 3944a837



cooling cm haf922 & Titan FENRIR + 1x120 mm

[tellis100]

Here's my new 920

Specs:
- CPU: Intel i7 920 @ 4.2GHz SLBEJ
- Memory: 6GB DDR3-1600 Corsair Dominator GT
- Motherboard: GIGABYTE GA-X58A-UD3R
- Graphics: HIS Radeon HD 5850 H585F1GDG
- Storage: 1TB WD, 1TB Seagate Raid 1
- PSU: PC Power & Cooling 750W
- Case: Coolermaster Cosmo S case w/black interior powdercoat
Cooling:
- (4) Scythe S-Flex SFF21E 120mm fans
- Swiftech MCP 355 pump
- Swiftech Apogee XT CPU waterblock
- Black Ice GTX 360 Radiator
- XSPC Acrylic Reservoir
- Tygon R-3603 1/2" ID 3/4" OD tubing
- NZXT Sentry 2 5.25" Fan Controller

[Postmodum]

Here's my i7 920

Intel i7 920 C0 @ 3.8
P6T DLX
6Gb Corsair Dominator 1600mhz C8
XFX GTX 295
Corsair HX1000
Seagate 7200.12 500Gb x 2 in Raid 0
WD 1TB Black series
ATCS 840
CPU & GPU EK Waterblocks
BlackIce radiators

This is what i got.
I did a run of 20 minutes on prime and on linX and it passed. I need to test lower vcore and qpi. I noticed that i only got the system stable giving the PLL 1.92v .

So basically i have:

19x200
Mems @ 8-8-8-24, 1604Mhz @ 1.64v
vCore @ 1.27200v
QPI @ 1.28250v
PLL @ 1.92v

Now i want to try if i can lower the qpi voltage... lets see.


And a snapshot ( badly taken ) of the system

[Le Titi]

Intel 920 D0 3847A765

A small bench of my 920 D0 @ 4200 221X19 @ 1.28V



Also @ 4606 at 1.448V 1h30 OCCT

[zalbard]

@ Le Titi:
Really nice chip!
Have you tried going further with HT off?

[-n7-]

Batch is B: 3938B268


Cooling = Corsair H50 w/ a couple Noctuas exhausting



1.325v BIOS LLC level 1 = ~ 1.295v idle/load
4.3 GHz HT off

[CryptiK]

Nice -n7- best 930 I've seen so far. Earliest batch I've seen too. Any results with HT on?

[LennyRhys]

I simply can't push my chip any higher because of cooling limitations. I can't believe how hot they get even with water cooling below the 4.5GHz mark Fair enough I needed a TRUE for my Q9650 @ 4.3GHz but I virtually need the same standard of cooling for below 4GHz with my 920.

[-n7-]

Nice -n7- best 930 I've seen so far. Earliest batch I've seen too. Any results with HT on?

It's OEM - seems to be a batch no one else has as a result of this.

I cannot get temps down to decent levels w/ HT on sadly.
I was getting too hot @ lower vcore @ 4.15 GHz even, so i'm not going to worry about HT for now as i don't run anything that benefits from it.

[iTravis]

I simply can't push my chip any higher because of cooling limitations. I can't believe how hot they get even with water cooling below the 4.5GHz mark Fair enough I needed a TRUE for my Q9650 @ 4.3GHz but I virtually need the same standard of cooling for below 4GHz with my 920.

It's true, the i7 runs way hotter than Core 2 Quad counter part especially when you have Turbo and HT on. When I had my MegaShadow I was only able to push to 4.0Ghz with 20 LinX pass but at 4.2Ghz after 5 pass it rocket through the roof with 85C and I couldn't run 20 pass without error. But after dipping it under water 4.5Ghz 20 passes and temp are still below the 85C, I know I can push more but I haven't quiet to play around with it yet. Get a WC setup for your i7 if you wanna push more.