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***The Official Core i7 Overclocking Thread***

and the 860 has integrated pci express lanes and enhanced turbo boost.
but the x58 chipset has support for the hexacore processor when it comes out and more pci express lanes for multi gpu support.
curse the chipset not the processor
 
RBL said:
Whole world and his dog got i7 920 now. I've got i7 860 and will be oveclocking v. soon and good guides I should follow? Thanks
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I have an 860 as sig. Seems in the most to be quicker than the 920s.

What cooling you going for?

Can give you some settings but tbh all CPUs are dif so will have to play about.
 
JonJ678 said:
Is that with or without load line calibration easy?

Think I'm on 1.3V for 4ghz now, llc off.
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LLC on /LLC off

whatever gets you 8hrs prime

Can't believe I have let this pass through the net.


I reckon its time to out the fake clockers from this thread.

I deem that 4ghz prime stable is not as easy as first thought.

Anyone can boot and run PI etc...

4 ghz 8 hrs prime is a stable clock.

I see some "gaming stable" and "used these settings for months" type posts.

Having spent the last 72 hrs getting prime passed ( and I know what I am doing) makes me think that that some of the claims of vcore in this thread @ 4ghz are BS
 
LLC enabled here, ive ran prime 95 small fft and blend for 8 hours each at 4ghz, may let them run for longer, particularly blend, as it can be a bugger. LinX and IBT are handy for a quick test, but i still prefer p95, tends to represent my daily use, my only problem theese days is getting a graphics card that works, 4ghz i7 920 with an 8800gt, not good at 1920x1200, my gtx 280 died, replacement gtx 275 died as well. Want to go higher so im collecting bits for a watercooling loop.
 
setter said:
LLC enabled here, ive ran prime 95 small fft and blend for 8 hours each at 4ghz, may let them run for longer, particularly blend, as it can be a bugger. LinX and IBT are handy for a quick test, but i still prefer p95, tends to represent my daily use, my only problem theese days is getting a graphics card that works, 4ghz i7 920 with an 8800gt, not good at 1920x1200, my gtx 280 died, replacement gtx 275 died as well. Want to go higher so im collecting bits for a watercooling loop.
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so vcore@ 4ghz prime 8 hrs =?
 
BSOD in prime is usually a ram/nb issue, though when i ran my p5q deluxe q9550, i had a lot of issues geting blend stable, ended up switching cpu margin enhancement from optimized to performance, had a nice 1.200 vid chip, done 3.8ghz on 1.216 vcore, sold it to fund my i7 rig.
 
setter said:
BSOD in prime is usually a ram/nb issue, though when i ran my p5q deluxe q9550, i had a lot of issues geting blend stable, ended up switching cpu margin enhancement from optimized to performance, had a nice 1.200 vid chip, done 3.8ghz on 1.216 vcore, sold it to fund my i7 rig.
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So...

8 hr Prime stable @ 4ghz 920.....is?
 
linx40.jpg

i75jan.jpg


Unfortunately easy, i didnt take screenshots of prime runs, to busy gaming (well when i had a decent vid card), tbh, even at stock this system runs so much beter than my previous 3.8ghz q6600 and q9550 cpus, next step is to get it under water, sold my old eclipse 62 case and got a lian li, more room for a decent loop. Does run a bit warm on my current crappy air cooling (lapped TRUE black with 2 x 500-1350 pwm fans)
 
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setter said:
Unfortunately easy, i didnt take screenshots of prime runs, to busy gaming (well when i had a decent vid card), tbh, even at stock this system runs so much beter than my previous 3.8ghz q6600 and q9550 cpus, next step is to get it under water, sold my old eclipse 62 case and got a lian li, more room for a decent loop. Does run a bit warm on my current crappy air cooling (lapped TRUE black with 2 x 500-1350 pwm fans)
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Nice and all that

Now run prime

Cheers
 
I don't seem to have screenshots of my 4GHz prime and LinX results, the only images I can find is my 4.2GHz stable o/c.


Here is a 6 hour prime screen, I can assure you it would run for as long as I left it!!!

prime6hours.jpg


And here is 20 passes of IBT using all available RAM:

4200mhz.jpg


Then I also have some LinX runs at 4.4GHz:

44GHz-1.jpg


44GHz2-1.jpg


That 4.4GHz clock is also 12 hours prime stable, I just didn't take any screens.

I can do some 8 hour runs once I get my case back next week, just to show that my clocks are rock solid..

@Easy, are you also using LinX/IBT as well as Prime when you're testing?

I personally find LinX will cripple sooner than Prime does, however, I always like to leave Prime running overnight just for my piece of mind that my o/c is stable.
 
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How's the case coming on davy?

EDIT: I can remember leaving my q6600 on a stress test one friday night (p95 small fft) at 3.8ghz, had a very good weekend, came home on the following monday morning and it was still going.
 
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Should be home at the start of next week, I've ended up getting the guy to do lots of other things to the case while he has it, so that's why it's taking so long!!

I am going to need to buy a new mobo now though, as the UD5 is going to look pretty stupid because everything else in my rig is going to be red and black...

I've thought about getting a Bloodrage, however, I'm just going to hold off buying a board until the new Rampage III Extreme gets released as they look pretty awesome, and will fit my new build nicely!!! :D

I've finally gotten my RMA replacement PSU, they ended up giving me the HX850 so I'm delighted with that, I also sent my pair of 40GB SSD's back to Kingston and they kindly replaced them with one of their 80GB Gen 2 Intel based drives, which is great because I was having quite a lot of problems with those 40GB drives in RAID-0, my array kept on breaking for some reason, but when I went back to my Raptor array everything worked perfectly, so it must have been a problem with the SSD's...


Sorry for going off topic folks!!!
 
Good to hear mate, i bought the hx850 on mm myself, bargain at £95.00, just a pity of the colour of the ud5, (p6t dlx v2 has some red and black), used to run 2 74gb raptors in raid0 meself, noisy buggers, but performance was great, cant spend much more myself now, started collecting the first bits for a custom watercooling loop, 10 x bitspower silver diamond 1/2 inch barbs, from small beginnings.:D
 
easyrider said:
Now run prime
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And similar comments.

I feel I must bring to your attention that 8 hours of prime does not make a system stable. I spent a ridiculous length of time trying to get 4.4ghz out of mine, and the issue wasn't getting prime95 stable, nor intel burn test stable, it was persuading the damned thing to run virtualbox while folding.

You're welcome to consider 8 hours of prime (or 24, or 72, w/e) to be proof of stability. I will not, as personal experience suggests passing prime doesn't mean so much.

I didn't ask you about loadline calibration looking for advice on whether I should use it or not, but rather asking whether you are using it. You're upset that your vcore is higher than other peoples, but if you're not using llc and they are, then this may explain the difference.
 
I agree with what Jon has said here.

There's been several people on here who have had their system Prime and IBT/LinX stable, yet whenever they try to do other things like game or fold their system falls over on them..

I dont fold myself, but I do like to use my PC for at least a full week with my o/ced settings to see whether it will buckle at any point, if it doesn't crash after a week and it consistently passes 20 runs of LinX and Prime95 blend overnight, then I class this as stable..
 
Stability can never be guaranteed, anyone that says their system is totally stable could be in for a shock, in the past ive had systems, ibt, prime blend/small fft stable, start a game, bit of encoding, boom instant bsod. Programs change on a daily basis, system demands therefore change as well. Overlocking isnt an exact science, as i always say, no two identical systems will overclock the same on identical settings, ive often seen people on here asking for overclocked profiles, theyre only making things worse for themselves, to me its about trial and error, it helps in that way because you learn the abilitys and more importantly, the limitations of your own kit.
 
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