What should CPU-NB voltage be set to?

Micro-star international K9n6pgm2-v2 des...
September 25, 2010 at 16:38:42
Specs: Windows 7, Phenom II x4 945/4 GB RAM
I have an MSI K9N6PGM2-V2 motherboard, BIOS version 2.5, with a Phenom II x4 945 95w CPU and 2x 2GB DDR2 800 RAM (one by Apacer, one by ADATA) and I've been having stability issues with the voltage settings set to auto. I've set the CPU and RAM voltages manually and it seems to have helped a lot with the stability but the CPU-NB voltage is still set to auto. I've been browsing google and the only information I can find for this is people who are overclocking, which I'm not. How do I tell what setting the CPU-NB voltage should be at? Thanks for any help.

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September 25, 2010 at 18:56:06
I highly doubt the NB voltage has to be touched. Explain your stability issues? Have you checked your temp readings? Did you test your RAM with memtest86?

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September 25, 2010 at 19:13:45
As far as my memory problems go, with RAM voltage set to auto I was able to run memtest on each stick of RAM separately for 12-15 hours before I needed to use my computer, I only have one at the moment and couldn't leave it any longer than that. When run together it would only get 1-2 hours in before an error, not quite two passes. After I set the voltage to 1.8v instead of auto I was able to run memtest for over 10 hours without error with both sticks in before I needed my computer and restarted.

I was previously having CPU errors, I'd try to run Prime95 and I would get about 1 minute in and I'd have errors on multiple cores. I then went and started increasing CPU voltage a bit and trying, I eventually found a CPU voltage setting that allowed me to run it for a few hours (again until I needed my computer and had to quit) without errors on any of the cores.

My temps are all fine, as read from HWMonitor on idle my CPU temp is 28c right now and under load I haven't seen it go past 48c with a stock cooler. My GPU temps run about 45c idle/65c load usually, HDD temp is 26c now, and TMPIN0/TMPIN1 (I don't know what these are) are at about 30c.

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