Q9400 Voltage when overclocking

C

ChrisUlrich

Active Member
It's at about 1.33v in bios which works out to be 1.304v actual.

When does it become to much voltage for it to be unsafe?
 
Last edited:
just a noob said:
right around 1.45 volts for 24/7 use, 1.6v is fine for benching, and 1.9v is certain death
Click to expand...

+1 :good:

you can go up to 1.7v under watercooling but it is the extrem limit! only for benchmark.
For 24/7 use, as said Just a noob, don't exceed 1.45v
 
What about FSB Frequency? Right now i'm at 1800. When does that become an issue? How do I tell if that's causing me to become unstable?
 
For Q9400, CPU FSB at stock is at 1333MHz so I deduce the mobo FSB was at 333MHz and the CPU/FSB ratio was at 8 ? For a final CPU frequency at 2.6GHz at stock.

Now CPU FSB at 1800MHz => mobo FSB at 450MHz
You've let the ratio on 8 ? And 3.6GHz stable with 1.33v in Vcore (bios) ??
 
yhahh said:
For Q9400, CPU FSB at stock is at 1333MHz so I deduce the mobo FSB was at 333MHz and the CPU/FSB ratio was at 8 ? For a final CPU frequency at 2.6GHz at stock.

Now CPU FSB at 1800MHz => mobo FSB at 450MHz
You've let the ratio on 8 ? And 3.6GHz stable with 1.33v in Vcore (bios) ??
Click to expand...

So far it's not totally stable. It freezes after about 30-45 minutes of being on. I just bump the voltage up one click everytime it freezes. Voltage is at 1.336 in CPU-Z when playing WoW.
 
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