overclocking manual voltage question

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sanusanu

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Nov 21, 2017
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Hello everyone, i was thinking about a little overclock on my CPU.
I would like to keep it simple and only OC the CPU frequency not the FSB/NB.
From what i read, i understood that the VCore needs to feed the CPU, and my question is :
Can I change the VCore to manual and leave the NB voltage to auto?
Because after vcore i have 2 values about voltage that i don't know what should i put.

2nd question: when i run HW monitor and a stress test it says VCore Max Value 1.320. Should i put that value as the vcore manual voltage or a little higher?

FYI: My CPU: FX - 8320; Mobo: ASUS M5A97 R2.0
 
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sanusanu

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Nov 21, 2017
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Yes Mike, my cooler is a NOX H212 not the stock cooler.

My question is about the NB/FSB voltage, should i leave it on AUto?
 
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CountMike

CountMike

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Leave it on auto, you ay want to change voltage only if it makes problems while adjusting FSB. OCing with FSB also changes frequency of other components like RAM and PCIe, it's much more practical to OC by multiplier. FX processors don't respond well and don't get any boost by playing with other parts.
 
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sanusanu

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Thanks man! When i get home i will set default values on BIOS and start from default VCore set as manual. and try to reach the 4.2Ghz that i am using now xD to see the minimum required VCore.
 
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vapour

vapour

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suggest starting from 1.35 v and 4.2 GHz, leave the rest auto. see if it boots.
monitor temp under load in prime95 or occt, if close to 80, kill the test and tune down voltage.
if no boot, slightly increase vcore voltage.
manual is always better due to auto oc may result in transient over voltage.
 
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sanusanu

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Thanks I will try it tomorrow if I have the chance. Because I play PUBG and after OC i has my FPS doubled.
Because I noticed on HW monitor that CPU was at 100% and it was my bottleneck
 
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sanusanu

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~

Yesterday i changed to manual voltage. i was able to boot and i did run the occt big test for 10 minutes.i did it on 1.35 then 1.34. The biggest VCore value i saw on the graphics was a peak of +-1.335 so i am affraid i cannot undervolt more and i will keep it like that. Or would you recommend to try a 1 tick less on Vcore?

On the occt test the higher temperature registered on CPU (by HWMonitor) was 61ºC although on AMD Overdrive the ThermalMargin was more than 20ºC.

My HW Monitor has more than one CPU Temperature indicator. One was is on "motherboard" field and the other on "FX8320" field.I believe one is from the socket and the other the CPU temperature. I read somewhere that the more trustfull temperature is from AMD OverDrive. Do you agree that if i have more than 20ºC of thermal margin i am ok? Or i should get lower Frequency? With this small OC i have the performance i need i think i will not risk more.

 
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vapour

vapour

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looks like you can go for more.
10 mins stress test is kind of too short
I will try to reduce voltage slowly and find min that can make 4.2 stable
try gaming and if you are satisfied, keep it. Just monitor your cpu temp in the first few days.
If you want more, go for it.
 
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sanusanu

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HWMom_zpsfb642c37.png


My computer shows up like this image.
As you can see, we may find CPU temperature under temperatures package. And then we may find again a separator called "AMD FX" showing another temperature of the package. Which temperature should i consider?
 
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sanusanu

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Sorry my english

this is not my computer!
Just wanted to demonstrate that i have 2 CPU temperatures. Which one is the one i have to care about?
The motherboard CPU temperature or the real CPU temperature?

Or should i just control temperature on AMD OverDrive? Which one is the socket?(they say max 70ºC)
 
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