IBT 94c? You are mad, I only use Prime95 now, IBT is scary. People mess with the VTT to stabilize ram I think, and PLL to try to lower it and get better temps but tbh it didn't make a difference, probably ideal for people running at stock because can lower to 1.5V without problems. IGPU doesn't make a difference either but I disabled because it is useless for me.
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***Official Ivybridge Overclock Thread***
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IBT is good to get a quick handle on your maximum temps, but 30 passes? ouch. It puts far too much stress on the cpu and will do more harm than good. I wouldn't go above 85c IBT at the extreme end. I've got my overclock hitting 75c in IBT and that's where I'm happy.
Lower PLL supposedly lowers maximum temps, but I don't see more than a margin of error difference.
VTT needs increasing if you run higher speed memory.
Lower PLL supposedly lowers maximum temps, but I don't see more than a margin of error difference.
VTT needs increasing if you run higher speed memory.
Anyone reccomend any decent guides for oc'ing ib cpu's. Spec is.
3570k
asus p8 z77 v pro
8gb corsair vengeance lp
So far, ive only tried the windows turbo v utility for a quick 4.2ghz oc, vcore under load of 1.244v, temps maxing at 62c under p95. Cooling is an Alpenfohn k2.
3570k
asus p8 z77 v pro
8gb corsair vengeance lp
So far, ive only tried the windows turbo v utility for a quick 4.2ghz oc, vcore under load of 1.244v, temps maxing at 62c under p95. Cooling is an Alpenfohn k2.
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3570k
4.2ghz - 7m 49.510s
4.4ghz - 7m 29.870s
The 3770k has more cache so is going to be fractionally faster.
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Just use this thread mate. That vcore a bit high for 4.2Ghz im @ 1.165v same 4.2Ghz
Yep, i suspected that it would be a bit high. Windows based utilities have a habit of setting high levels. Ill have a good read through this thread and google a bit on my particular board. Not new to oc'ing, but the various settings are a little different from my old x58 setup.
I built an IB system last week and have settled on 4.4 Ghz, 1.2v vcore as my 24/7 overclock. Idle temps are typically around 27, under prime they max out on the hottest core at 78 with my fan in silent mode. I'm sure I could knock a few degrees off by removing the silent adapter but don't see the point really.
I'd planned to use dynamic vcore for my overclock but in practice it doesn't seem to function as I wanted it to (4.4 @ 1.2v when under load then dropping to 1.6 @ 0.9v when not being stressed). The dynamic vcore setting (I think it's DVID on this board) only becomes selectable when I set the vcore to 'normal' which locks it at 1.15v meaning that would be my power saving voltage rather than the desired 0.9v. Think I'll just leave it at a 4.4GHz, 1.2v constant clock for the time being.
I'd planned to use dynamic vcore for my overclock but in practice it doesn't seem to function as I wanted it to (4.4 @ 1.2v when under load then dropping to 1.6 @ 0.9v when not being stressed). The dynamic vcore setting (I think it's DVID on this board) only becomes selectable when I set the vcore to 'normal' which locks it at 1.15v meaning that would be my power saving voltage rather than the desired 0.9v. Think I'll just leave it at a 4.4GHz, 1.2v constant clock for the time being.
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I seem to be getting the same temps on my 4.7Ghz (1.33v) as I did when I had it on 4.5Ghz @ 1.280v
Temps only get into the 70c when I've got my GPU under some kind of load playing games. Just using an antec 620 with an extra £3 ebay fan as a push/pull setup.
Note these aren't max temps on prime/ibt, just 100% folding load all day.
Temps only get into the 70c when I've got my GPU under some kind of load playing games. Just using an antec 620 with an extra £3 ebay fan as a push/pull setup.
Note these aren't max temps on prime/ibt, just 100% folding load all day.
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False, it's just hotter, not damaging in any way. 10-100 passes with max memory (without paging) is one of the best (the best IMO) stability tests out there.
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Already been stressed initially with IBT max memory. Folding for a week is a true test of stability and I only posted the pics to show the temps are similar to what I'm getting on 4.5, after two weeks or so I'll know if I'm stable, which I probably am at these high volts.
I've ran prime for 14 hours on my old amd phenom then started to fold the next day and it blue screened within 20 minutes. Same with this chip. After 2 days of solid folding (doing something useful I might add) I got a blue screen and a whea error after something like 60 hours of non-stop folding. you can pass IBT/prime for 24 hours but if you can't fold 24/7 your OC is useless.
Out of interest would a memory issue effect an overclock? For example, if one of my memory sticks wasn't as good as the others or had a fault, would the result be that I need more CPU voltage to overcome this issue? Probably a daft question
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If your memory had an issue I doubt putting more volts through your cpu would resolve the problem.
Hmm I don't really agree. Certainly not something most other people use as a reliability benchmark. Folding generates waaay less heat for one.
Oh and folding 24/7 certainly doesn't dictate a pc being useful or not. A very small percentage of the worlds pc's are actually used for fah.
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I meant being a useful tool/stress tester in having scientific results compared to 12 hours of prime which nets you what exactly? If you frequented folding forums and seasoned users of distributed computing I'm sure they'd disagree with you in your opinion of folding being a poor test of stability. Like I said use IBt 30 passes to test for heat but I wouldn't use that for 12 hours straight.
Like I said I've passed long periods of prime95 then started folding and it crashes. If a computer can't fold it means it's unstable and therefore useless, unless you like blue screens.
Like I said I've passed long periods of prime95 then started folding and it crashes. If a computer can't fold it means it's unstable and therefore useless, unless you like blue screens.
I have a i5 3570k running at stock speeds and using my Hyper 212+ it doesn't go over 43c on load.
Question is, will there be a noticeable improvement in game fps if I OC it? I mean, is it really worth the extra power draw and temp increase that comes with overclocking?
Question is, will there be a noticeable improvement in game fps if I OC it? I mean, is it really worth the extra power draw and temp increase that comes with overclocking?