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PC can't handle normal voltage. Suggestions?

post #1 of 12
Thread Starter 
Hi.

I have asked this question before in other threads but I'm now creating a thread only to solve this problem.


I have the PC in my signature and I've encountered a problem that is really bugging me.

I can achieve 4ghz at 1.36vcore (during 100% load) and that is pretty impressive and good I know. However, not all things are as good.

At 4ghz I can only run 1.35vcore. If I take 1.375v/1.4v/1.425v/1.45v/1.475v/1.5v and stress test my PC in Intel Burn Test, my PC will restart/reboot (no BSoD or Error of any kind) and then act like normal again.


I first thought it was the VRMs/MOSFETs on my motherboard getting too hot. I have bought a heatsink for this and it didnt help.

The heatsink on the MOSFETs got pretty hot (I could get a blister if I held long enough) so I thought adding a fan to it might solve the problem.

I added a fan that moves a lot of air (and sounds like a airplane). My Heatsink is now very very cool, I cannot even feel it being hot!

But, that didn't solve the problem either.

I still get restart/reboot if vcore is above 1.35v/1.375v @ 4ghz and I have no freaking idea why.
I can however run stock clock at above 1.375v without any problems.

Only when I run 4ghz at above 1.375v it reboots, under this volt (1.35v) I can run it perfectly fine.



Anyone have any suggestion or idea of where the problem can be?

Please don't post "bad overclock" or something ****ty like that cus this seems to be a strange probem, even maybe hardware related.


If you wonder anything more just ask!

thanks in advace.
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post #2 of 12
Temperatures of the CPU? Sounds like the CPU is overheating.
    
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post #3 of 12
Thread Starter 
Quote:
Originally Posted by MR KROGOTH View Post
Temperatures of the CPU? Sounds like the CPU is overheating.
48 max. Read of CPUtemp.
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post #4 of 12
Quote:
Originally Posted by Nikkopo View Post
48 max. Read of CPUtemp.
And you're taking socket temps, right?
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post #5 of 12
Thread Starter 
Quote:
Originally Posted by Devilmaypoop View Post
And you're taking socket temps, right?
Yep.

48c socket temp.
43c Coretemp.
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post #6 of 12
What settings do you have your memory running at? If you're certain it isnt the CPU failing then perhaps your RAM is unstable. Just a suggestion of course (: could be the divider upping your DRAM frequency along with your 4GHZ OC. is this set manually or is the RAM OC'ed as well? and with what voltage?
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post #7 of 12
Thread Starter 
Quote:
Originally Posted by BlueLights View Post
What settings do you have your memory running at? If you're certain it isnt the CPU failing then perhaps your RAM is unstable. Just a suggestion of course (: could be the divider upping your DRAM frequency along with your 4GHZ OC. is this set manually or is the RAM OC'ed as well? and with what voltage?
My RAM are now under stock (they are 1600mhz but I run them as something aruond 15xxmhz~) and on the voltage of 1.65v (which they are supposed to be at).


But as I said, its only when I raise the Vcore (voltage to CPU) that my PC reboots. Shouldn't this only be a CPU problem in that case? Cus I'm not touching anything else.

I can run as I said CPU at stock with high vcore and it's stable even when I have RAM and NB oc'd. Its when I run the CPU at 4ghz with high vcore it reboots. I would understand if my PC would reboot due to very low Vcore, but now its the opposite, I cannot achieve a high Vcore
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post #8 of 12
Thread Starter 
If it is hardware related, either CPU or Mobo, do you think I can RMA it?

or if it is the PSU then I should be able to RMA it without problems I guess. Need to find out tho.
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post #9 of 12
Quote:
Originally Posted by Nikkopo View Post
If it is hardware related, either CPU or Mobo, do you think I can RMA it?

or if it is the PSU then I should be able to RMA it without problems I guess. Need to find out tho.
No need to worry. Happen to me a lot. Higher voltages than needed - unstable OC.
If you wanna run it with higher CPU Volt, you need to re-adjust your CPU/NB and/or RAM Voltage.
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post #10 of 12
Thread Starter 
Quote:
Originally Posted by IOSEFINI View Post
No need to worry. Happen to me a lot. Higher voltages than needed - unstable OC.
If you wanna run it with higher CPU Volt, you need to re-adjust your CPU/NB and/or RAM Voltage.
But shouldn't be like that, right? =(

So its the CPU causing this reboot you believe? Not the motherboard?
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