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Prime.

arc@css

arc@css

arc@css

Caporegime
Joined
8 Nov 2008
Posts
29,280
Hi,

Quick Q: is Prime still one of the recommended programs to help monitor CPU overclocking?

Thanks.


Hmmm...it might not be worth bothering anyway.

I altered the CPU ratio to 43 from 42 (currently on 4.2ghz); BCLK is on auto @ 100, and upped the CPU voltage from stock (1.16 ish can't quite remember) to 1.125. It did not like that. :/

Looks like I've yet again drawn a crap clocker.

XMP is currently disabled.



Edit 2: seems to be okay at the mo when set to 4.3 (no other changes yet). Maybe my mobo is the limiting factor here, though I was under the impression that it's a fairly decent one.

This was the video that I followed to start with, though it didn't cover as much detail as I anticipated:

 
Last edited:
depends on the cpu , Realbench is a better real world stress tester as is Aida , however nothing beats just using the pc.
 
1.16 is more than 1.125....so unless that is a typo (which I'll assume it is), you lowered the voltage.

If it was 1.25, I believe that should be enough vcore, however there are other voltages to consider.

VCCIO (or CPU input voltage) controls voltage to the uncore parts of the chip, and I believe it is often recommended to set at around 1.9, however I haven't spent much time on anything newer than my sandy bridge chip, so I'm not overly certain of exact values.

another approach is to (briefly) use the auto overclocking features on your motherboard, to give you an indication of what voltage the CPU needs.

also please bear in mind that voltage should be measured at full load, and that 'auto' on your motherboard is not a fixed value, and will send more voltage to your CPU that is actually needed at that clock speed.
 
TrojanWhore said:
1.16 is more than 1.125....so unless that is a typo (which I'll assume it is), you lowered the voltage.
Click to expand...

Yeah, that was a typo but I will check to make sure. Maths was never my strong point. :D

TrojanWhore said:
If it was 1.25, I believe that should be enough vcore, however there are other voltages to consider.

VCCIO (or CPU input voltage) controls voltage to the uncore parts of the chip, and I believe it is often recommended to set at around 1.9, however I haven't spent much time on anything newer than my sandy bridge chip, so I'm not overly certain of exact values.

another approach is to (briefly) use the auto overclocking features on your motherboard, to give you an indication of what voltage the CPU needs.

also please bear in mind that voltage should be measured at full load, and that 'auto' on your motherboard is not a fixed value, and will send more voltage to your CPU that is actually needed at that clock speed.
Click to expand...

Thanks, I'll look into this later.

I rendered a video earlier with the CPU running at 4.3, so that would seem to indicate that it's at least fairly stable at that speed. I guess that's something slightly positive/it's a start anyway. :)
 
darket said:
depends on the cpu , Realbench is a better real world stress tester as is Aida , however nothing beats just using the pc.
Click to expand...

Realbench I actually found to be a little bit wishy washy as it is also testing other parts of the system which in theory is good, but in reality your there to test the CPU not ram and GPU stability.

You do those bits separately once CPU stability has been verified.
 
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