DRAM Voltage

My fsb is clocked at 250mhz and I just installed some ocz pc4000 gold dual channel (2x256mb) at a 1:1 ratio. I was using pc3200 before at a 5:4 ratio. Since I installed it I have gotten a few memory errors and my computer has frozen once while playing Counter-Strike. Do I need to up my DRAM Voltage since I installed more powerful ram?

I don't about ocz, but I have kingston pc4000 running @262mhz fsb(2x512) with just 2.6v. Btw, I have the same motherboard as you. I don't think you need to up the dram voltage, but you can try to up it to 2.8v and see if it is stable or not. 2.8v will not hurt your ram.

higher vdd perhaps??

I upped it to 2.8 and its perfectly stable now. ty