Solved Explain these BIOS Voltage settings please.

Custom / CUSTOM
September 11, 2012 at 06:36:53
Specs: Windows 7 x64, 3.8GHz / 8182 MB
I have some voltage settings in my BIOS which I have no Idea what they do. I've Googled to death and am still at a loss. Hopefully some of you will know. My Board is a Crosshair IV Formula.

CPU VDDA - Some people say it's CPU multi, some say Bus. Which is it?

NB 1.8V Voltage - I have this voltage aswell as an NB voltage. What does it affect?

VDDR Voltage - I know this is usually RAM, but I have a DRAM voltage. So what does this do?

Any information would be greatly appreciated.


AMD Phenom II x6 BE 1090T @ 3.8GHz 1.40V
8GB GSkill Ripjaw @ 1333 7-7-7 1.60V
HIS Radeon HD6850 IceQX Turbo 1GB CrossfireX
OCZ Vertex+ SSD
CM GX 650

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September 11, 2012 at 08:53:11
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