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Old 11-30-09, 11:25 AM   #301
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Default Re: Core i7 Overclocking thread

I wouldn't feel safe with temps that high but I guess if it's stable
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Old 01-16-10, 06:33 PM   #302
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Default Re: Core i7 Overclocking thread

Playing with my OC today. Just realizing that after a certain point, my temps really don't go much higher when I raise voltage for more clock headroom. Maybe I didn't test this enough when I switched from air to the H50 cooler.

I was at 1.25V for a 3.8ghz, but I can raise it to 1.34V for 4.2ghz (or more?) and the temps are basically the same. Idling about 38-36-38-36C on all cores. Nice.



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Old 01-16-10, 07:25 PM   #303
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Default Re: Core i7 Overclocking thread

Run LinX and show us some numbers
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Old 01-16-10, 07:29 PM   #304
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Quote:
Originally Posted by -=DVS=- View Post
Run LinX and show us some numbers
No, u!
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Old 01-16-10, 08:07 PM   #305
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Default Re: Core i7 Overclocking thread

Quote:
Originally Posted by methimpikehoses View Post
No, u!
Ok you got me , im only one interested you got better chip. I need 1.35v for 4.2ghz
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Old 01-16-10, 08:12 PM   #306
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Default Re: Core i7 Overclocking thread

Nice.

Hopefully in a week or so I'll be able to replace my stock cooler and do some oc'ing my self.
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Old 01-16-10, 08:44 PM   #307
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Default Re: Core i7 Overclocking thread

Testing now with OCCT. Had to raise the CPU VTT to 300 (1.341V total) to get a stable run, idle at 45C up to about 82C under 100% load after an hour.
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Old 01-24-10, 02:39 AM   #308
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Default Re: Core i7 Overclocking thread

Finally broke down and joined the i7 bandwagon

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Old 01-24-10, 03:35 AM   #309
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Default Re: Core i7 Overclocking thread

^ that works
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Old 02-06-10, 01:23 PM   #310
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Default Re: Core i7 Overclocking thread

OC doing well so far. As I type I'm 45 mins in to a stability test (all is well so far) at the following setting;

4 cores, no HT at 4.2Ghz (200 x 21) - CPU-Z showing 1.29vCore (set to 1.325 in BIOS with LLC enabled)

CPU core temps are hovering around 74-80*C. There's no way this H5O will cope with HT at these clocks, but it was OK with HT at 4.0Ghz. Idle temps are 38-43*C

RAM @ (8x) 1600 8-8-8-20-90 2T 1.66v
Uncore @ 16x
VTT/uncore @ 1.34v
QPI @ lowest x
ioh and ich @ 1.2v
CPU ppl @ 1.88v

Just been trying to get it stable. The main thing causing problems was the Command Rate setting, which didn't like 1T, and of course finding the right combo or vCore and clocks.

If it hasn't crashed in an hour or two it start bringing the voltages and timings down a bit. Otherwise I'm very happy

Gonna post some pics in the PYR2010 thread.
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Old 02-06-10, 01:53 PM   #311
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Default Re: Core i7 Overclocking thread

Still going strong at 75mins. I might even have a go with HT enabled. Do you guys all have it on? What difference does it make?

BTW, this is the guide I used for info. Very easy to understand and accurate info...

http://www.overclock.net/intel-cpus/...7-920-4-a.html

Thanks to chadamir at OC
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Old 02-06-10, 02:59 PM   #312
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Default Re: Core i7 Overclocking thread

Glad to see you got the upgrades going. My guess is that it needs a little qpi voltage if you are running it at the default 1.2v. It will probably help with getting your ram to run at 1T too(it should not be an issue with only three sticks).
Personally I like to have HT enabled and if you are using prime to stress test switch to intel burn test or occt. They will reveal weak oc's much quicker and easier
All my voltages are in my post above if you want to try them out
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