Fluctuating CPU voltage

Capodecina
Soldato
Joined
30 Jul 2006
Posts
12,130
Hi

I have a MSI K7N2 Delta-ILSR (MS-6750) motherboard with an AMD Barton XP 3200+ CPU & 2 x 512Mb PC-3200 RAM.

Of late, it has started crashing with monotonous regularity. I have tried everything I can think of to identify the cause - without any success.

Today, on the off chance that it would make a difference, I decided to experiment with dropping the FSB speed from 200MHz to 166MHz. Before doing so, I ran CPU-Z to check the speeds. I happened to notice that the CPU Voltage was fluctuating between 1.60v & 1.664v. pcAlert4 shows the same thing - the other voltages are shown as 3.33v, 4.95v & 11.88v and seem rock steady. I have never noticed this fluctuation in CPU Voltage before, but haven't really looked.

Does anyone have any idea why this might happen? I am guessing that there is a problem with the VRM on the motherboard. Does anyone have any suggestions as to whether I can do anything about this?
 
Vcore fluctuation is normal on most boards. On mine the fluctuation can be as much as 0.08V especially under load!

What's the vcore setting in your BIOS?

Did lowering the FSB work?
 
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