Gigabyte GA-EX58-UD3R BIOS Mystery

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Joined
14 Dec 2009
Posts
130
Hi,

Trying to understand the relationship between a couple of settings in the BIOS of the above board.

I have noticed that I can't set the IOH Core voltage independently of the CPU and PCI Clock Drive settings. If I change the IOH Core voltage settings, either or both the PCI/CPU clock drive settings change (and vice versa). This happens instantly, without saving/restarting etc.

This is made even stranger by the fact that I can no longer seem to get my settings back the standard OCUK settings which were:
CPU Clock Drive 900mV
PCI Clock Drive 900mV
IOH Core 1.22v

Now, if set the clock drive settings as above, the IOH Core moves to 1.24v. If I lower the IOH to 1.22v, the CPU Clock Drive drops to 800mV.

Are these two settings inextricably linked?

Any explanation much appreciated.
 
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