VCore Voltage problems

Hello, again...
I've been silent for a while(after I had to RMA board once to MSI and got new one back), just being happy my machine works. But now, after a while, I just wanted to try to get my CPU to a bit more faster settings.
Problem is, I can't get beyond 253 FSB without raising VCore voltage from 1.6 -> 1.7. When VCore is at 1.6, CPU-Z and BIOS Health monitor shows it is nicely near 1.6 volts. But when I raise VCore voltage from BIOS to 1.7 it starts to jump between 1.8 - 1.9, both BIOS and CPU-Z shows same behaviour. It wont drop below 1.8, so it's like I did set VCore to 1.8, but I didn't. I did check..
Now, of course, I could run it at 1.8, but it is a bit too much for my liking, I would like to use 1.7 volts setting. Does anyone else have this same problem?
Is this BIOS problem or what? I dunno, and I do remeber that my last board(which broke) did the same thing.
Thanks.

Hi Lamy. 253 is nothing to complain about. I assume you are at a 5:4 ratio since your ram is only DDR400, which means you are at it's max rating. At that degree of overclock you are probably overloading your power supply at times. Have you tried dropping to a 3:2 ratio to see if the ram is the problem.
ryede, I'm getting tired of threats from people planning on switching motherboards. Read the rules - there are no MSI rep's here; we are all users. You have one post to your credit with minimal information supplied, and to top it all you are trying to hijack someone elses post. Besides, exceeding 250 FSB is an accomplishment that few achieve.

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