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AMI BIOS and VCORE increasing

post #1 of 5
Thread Starter 
HI There!
First of all - sorry for my english grammar.
I'm new in this Forum and OC, I seen some articles, posts etc. about this, so now I too want OC my processor too - actually it's unlocked and it's 6x 3,6GHz -,
but there's the problem: my AMI bios, on MSI 870S-C45 (FX) doesn't provide the options of manually changing the CPU Voltage (I'm already switched off C1E, AMD Cool'n'Quiet and AMD Turbo Core, nothing is mentioned in Manual about VCORE/Core Voltage/Processor Voltage ).
I seen on this forum TIP how to fast OC AMD 960T to 4GHz and guy said "[...] Incerase VCORE to 1,4 [...]" but i can't and I Think it's still changing dynamically, so i have question: It's safe leave it as it is and continue Incerasing Multipler, and testing stability to my dream 6x 4Ghz? I don't want to see how my CPU burn... tongue.gif
Sorry if wrong section
Edited by Szarky - 2/26/13 at 9:52pm
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post #2 of 5
If the voltage is being adjusted automatically, it isn't safe to ignore it.
Use cpu-z to check your voltage. And use coretemp to monitor your temperatures.
Its odd that your MB doesn't have voltage control. I skimmed through your manual and couldn' find it either.
Higher voltage means higher temperatures. So, start with a mild overclock and check your voltage on load(keeping an eye on temps). The. gradually increase and recheck(stability voltage,temp). Stop before your voltage goes over 1.4 on load(acceptable temps, at least 1hr of prime95)

PS: Don't leave your NB freq to auto. If you are only changing the multiplier its okay.
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post #3 of 5
Thread Starter 
So:
CPU Spec in bios shows that normal CPU VCORE is 1.3250, current value in BIOS is jumping (while OCCT test too) so there you are log:

If we talking about cooling - easy I have BeQuiet! Dark Rock pro C1, and max temp I noticed is 42oC while prime95 test
any proposals what else can I do to get CPU @ 4.0GHz?
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post #4 of 5
Quote:
Originally Posted by Szarky View Post

So:
CPU Spec in bios shows that normal CPU VCORE is 1.3250, current value in BIOS is jumping (while OCCT test too) so there you are log:

If we talking about cooling - easy I have BeQuiet! Dark Rock pro C1, and max temp I noticed is 42oC while prime95 test
any proposals what else can I do to get CPU @ 4.0GHz?

That chart looks okay. So this is at 3.5 and your load temps are only 42C? How low are your ambient temps?

Make sure to strap your PCIe freq at 100. Switch off "C1 enhanced state (C1E)" in your bios. Go ahead by only increasing the multiplier in small steps. You can enable it later if your overclock is stable. After each step make a chart like the one you posted. Make sure the voltage doesn't go above 1.4V. Test stability with prime95 while keeping an eye on temps.

Now comes the important part:
If you are new to OCing it is imperative that your understand your bios completely before you indulge in any overclocking.
Please read this OCN guide on the basics of AMD overcloking : Guide
I understand if you are impatient for results, but it is a risky venture smile.gif

Good luck thumb.gif
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post #5 of 5
Thread Starter 
Quote:
Originally Posted by kenpachiroks View Post

That chart looks okay. So this is at 3.5 and your load temps are only 42C? How low are your ambient temps?
It's about 25oC in my room but PC is with open case - im waiting for This and some blue cathode biggrin.gif

but let's move on:
Quote:
PCIe freq at 100 [...] Switch off "C1 enhanced state (C1E) [...] Test stability with prime95 while keeping an eye on temps
Done
Quote:
Go ahead by only increasing the multiplier in small steps
if multipler from 17,5 to 18,5 is small step: Done
Quote:
ake sure the voltage doesn't go above 1.4V
aaand here's the problem: Vcore was ~1,408-1,416 (jumping), Temps was OK (max 45oC average 44), after 55 min of torture test Small FTT i had BSOD (so i lost all logs from HWMonitor mad.gif ) with error Cache Hierarchy Error send by 4th core (counting from 0 so that is that unlocked core).
And now i don't know that I can continue to 4.0Ghz or leave it on 3,7Ghz because i don't know that is RAM fault or voltage jumping?

EDIT:
After 1h from the last BSOD i had the next one with unknown error on core #4 and #5 (both unlocked) while net-surfing so I decided to decerase multipler to 18 - i think it's enough.
if you want: CPU-z Validation
Edited by Szarky - 2/28/13 at 10:42am
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