i7 4790k stable overclock but restarts my pc on first boot of the day.

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lucaruby

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Nov 26, 2014
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im using a 4790k on a z97x soc with a h100i.

i have tried a few oc over a few years 4.8 ghz at 1.3 and 1.35v
and 4.9 ghz at 1.35v

after i turn the pc on i have about 10 mins till the pc will just restart on bsod no freezes just restarts and then opens bios saying to reset to default settings or go to bios and change overclock.

if i just restart from there the pc is fine for the rest of the day uless i play a ubisoft game using anvil and then the pc will randomly freeze with no bsod so i have to press reset switch.

yes the oc is stable i have stressed all of them for atleast a day :(

oh and running f7 bios

any help will be much appreciated
 
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TheFinalEpic

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Nov 6, 2015
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I've done research on overclocking that CPU (cause i have it). I've also extensively tried to overlcok it with numerous valules of voltage and ghz. Anyway the general consensus and from intel themselves is that the max voltage you should put on the CPU is 1.3V.
Also I know for a fact at even at 1.35 you cannot do 4.9 "stable". If your computer freezes and switches off... its not stable.


Do 1.3 volt and do 4.6-4.7 ghz. Generally most chip can do 4.6 ghz at 1.3 volt. If you'r elucky you can do 4.7 ghz.



But to requote Black bird and myself.

No that's not stable.
 
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lucaruby

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Nov 26, 2014
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if i remember right it was doing this when i was first oc before i went over 1.3
 
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lucaruby

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but it still should be able to overclock to turbo boost when it does that anyway?
 
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TheFinalEpic

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Those don't mean anything. Ican set my 4790k to run at 5.3 ghz and it'lll still go through. does that mean it's stable in games and stuff? no lol
 
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Sam Hain

Sam Hain

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Apr 21, 2013
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Increasing voltage is a risky biz which also increases temps, which may require intricate cooling and sometimes expensive cooling solutions and even then may still damage the CPU. Speaking of, prior to CPU OC'ing, it's essential to have a premium cooling solution, not just something that works...

Prime95 or IBT (Intel Burn Test) are CPU stability test tools that I know of/use that will test your CPU OC. Programs like these will definitely stress test a CPU with or w/out an OC properly, unlike a benchmark program can do or does, which only really measure performance parameters in set environments; synthetic.

As stated by TheFinalEpic, your CPU may be FUBAR... At this point, I'd try running one of the programs I mentioned stock-speed first and leave the voltage alone. If good, OC in 200Mhz increments at a time until you error. That will tell you your OC-wall, with your current chip/chip cooling and/or previous OC attempt that may have damaged the CPU.

Good luck...
 
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lucaruby

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Nov 26, 2014
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i have just tried setting the clock lower than turbo boost (which it does) still creates this issue even at stock voltage :(

i dont see how damage to the cpu could be causeing this as like stated the chip will turbo boost but when i set it to the ANY!!! frequency it causes these crashes.
 
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