Hi Jantar and thanks again for your help. Here is my current bios settings.
robust graphics booster (auto)
CPU clock (x9)
CPU Host Clock Control (enabled)
CPU host frequency (356)
PCI express frequency (100)
performance enhance (standard)
system memory multiplier (2.40)
high speed dram dll settings (option 1)
DRAM timing selectable (manual)
CAS latency time (5)
DRAM RAS# to CAS# delay (5)
DRAM RAS# precharge (5)
precharge delay (15)
--------> the rest of the ram setting left to the default values
system voltage control (manual)
DDR2 over voltage control (+0.3)
PCI-E over voltage control (normal)
FSB over voltage control (normal)
CPU voltage control (1.33v)
I had prime95 running last night for about three hours before I went to bed but no errors!! I didn't want to keep it running all night cause this being my first OC rig, I wanted to keep a close eye on the temp readings. The temp at full load is a bit high but it could be that I don't have too good a OC'ing cpu fan. Right now with my computer mostly idling I get temp on the 4 cores from 46C to 51C at 3.2ghz. That's actually a whole lot better than it was just a week ago before I lapped my cpu and heat sink cause back then I was running the factory default 2.4ghz on my q6600 and on idle I would see temp between (about) 57 to 63. I could drop the VID a little more but I'm so happy getting my system running stable that I think I'll keep my setting as it is and just get a better heat sink fan. Probably the Thermalright Ultra-120.
I ran a couple of bench mark programs last night and on 3dmark06 I got 10,836 and on Passmark Performance v6.1 test I got 1712. I do have the pcmark but I could never get a benchmark score cause something in my system prevents the pcmark from running all the tests for a benchmark score and I just could never figure out what I had to do. Anyway when I do get my new Thermalright Ultra-120, maybe I'll try fsb at 400.
Why do you need to change settings like PCI bus speed and random voltages?
to answer your question Redmo0n, I'm changing the default speeds and voltages to get a faster computer. I'm not a gamer so I really don't need too fast a rig but I do like my computer to be blazing fast, so here I am.