How Can You Tell If Your Overclock is Unstable?

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Ed1

Senior member
Jan 8, 2001
453
18
81
So what is the difference between Adaptive and Auto setting then? doesn't both setting auto adjust voltage base on load? So why should I set mine to auto instead of adaptive or the other way around.

Offset = auto with just you have ability to adjust a offset amount off VID table .
So offset affects all points of voltage curve, from idle to full load.

Adaptive only adjust voltage for turbo load, it doesn't affect idle so it better in that respect but you don't have control of were it will go according to load, more load, more voltage .
 

Ed1

Senior member
Jan 8, 2001
453
18
81
That's why I dislike adaptive Vcore overclocks. Call me old-fashioned, but I tend to stick with fixed Vcore OCs.
Idle power usage is no biggie for me, since I'm usually running either encode jobs or DC.

Yup I agree especailly if your shooting for max OC , manual is safer bet .
I don't do that thoguh , I set my OC for best speed for lowest voltage so I have been running 4.3@1.140 but i am on Z77 .

I was looking at Asus Z87 maximu VI hero , Wow that board has a lot of CPU voltage adjustments , not sure i even follow all of them but there was these options
CPU core voltage
CPU core override voltage
CPU offset sign
CPU core voltage offset
Additional turbo mode CPU core voltage
CPU cache voltage .

Now AFAIK not all are used at same time depending on mode you choose (manual verse offset/adaptive) but that seems pretty good control .
Way more than my Z77 as it just has one voltage control .

PS: XTU does give Z77 the turbo core additional voltage option , but many might not like running software to do it even though XTU is very low resource .
 
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mikeymikec

Lifer
May 19, 2011
21,076
16,303
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I overclocked my 4770k, ran Prime95 and Aida64 for two days straight, each is 18 hours. Display no errors.

Then today I used Google chrome for 2 hours, and got a windows 8 error message saying that windows has encounter an error and needs to be restart.

I would ditch the overclock for the foreseeable future until you've got a good idea of how stable your system is before you overclock.

It could be anything at this point, a dodgy driver for a USB peripheral, for example. More information needed.
 

Kenmitch

Diamond Member
Oct 10, 1999
8,505
2,250
136
I would ditch the overclock for the foreseeable future until you've got a good idea of how stable your system is before you overclock.

It could be anything at this point, a dodgy driver for a USB peripheral, for example. More information needed.

That's kind of extreme.

He could also just try upping the vcore a little more. Or just drop the multiplier by 1 and see what happens.

Real world use stress testing is what matters most. Who cares if you can run Prime 24/7 if you get bsods while checking your email, surfing the web, etc.

Heavy hitting stability testing serves it's purpose to get a base for overclocking. It's the things a person does on their rig on a day to day basis that determines true stability.
 

Hans Gruber

Platinum Member
Dec 23, 2006
2,518
1,358
136
There are no hard fast rules on what makes an unstable overclock. The best indicator is usually a blue screen or noticing your computer hanging but not completely crashing.
 

mikeymikec

Lifer
May 19, 2011
21,076
16,303
136
That's kind of extreme.

I don't think so, for all we know the OP built this computer last week. If so, they ought to run it on stock settings for a while to know it works. If they're asking questions like in the OP, IMO they're probably not used to overclocking and have probably tried to run before they can walk.