Overclock Question / Troubleshoot

[monkeynetman]

When I was trying to find out how far I can push my board/CPU, it won't go over 220, but I'm guessing it's my RAMs, because I have this setted up at the moment:

(2 x 512MB) DDR400 Corsair Value Select
(2 x 256MB) DDR400 Corsair Value Select

I did set the dividers to 133 and HTT multiplier to 3x, so that the memories won't be pushed too hard. I even loosened up the memory timings.

So I guess my question is... if I have all 4 DIMMs taken up, each pair using different size of memory... would this effect my overclock?

I'm still waiting on my OCZ 2GB DDR500 memories to come in, so I kind of wanted to find out how far I can push my board and CPU first.

Any advices or suggestions is much appreciated! Thanks for your time folks!

Oh... and my system specs are in my signature... and if this helps in anyway... I'm using BIOS version 1.60