<< do i need too move up the volts now,so i can reach at 632 >>
Bah!
Go for 733 (133 FSB) or even higher at 1.75-1.8 V. Just make sure you set your memory to -33 MHz (ie. 3/4 FSB) to run it at 100 (preferably CAS 2 if your memory can handle it). In fact, even though it isn't cB0, I wouldn't be surprised if you were able to go a fair bit higher.