Originally posted by: PhoenixOrion
At an overclock of 20% to 3.36Ghz, you should not need vcore adjustment.
Assuming that you are using 2.8 "c" northwood chip, these cpu's are very good overclockers that the stability might come from your PC3200 memory. 2.8c perform great on i875 chipset (canterwood) mobo like the p4c800-de.
You didn't mention what brand of memory you are using.
My suggestion is to ditch the AI OC function and set everything manually:
1. set the fsb/mem divider to 5:4 instead of 1:1 with both vcore and vddr at default. at 3.36Ghz, check stability. if not stable then you know your cpu is the bottleneck.
2. if stable after step 1, change divider back to 1:1. then set vddr to 2.8v and "lock" or "fix" the agp/pci frequency. overclock to the 20% by raising fsb to 240. if not stable at this point, then start bumping vcore. default should be 1.52v and keep bumping no higher than 1.62v to avoid premature aging of cpu.
Originally posted by: ScottFern
I am having all types of problems! I can get into WindowsXP and do my normal stuff, but I can't encode a dvd for any type of OC. Now, I am at 3.36Ghz and it still will lock up and/or reset the computer. I don't understand whats the weak link here
HELP? Is it the voltages, cpu, mobo ? mobo bios settings?