need help overclocking my p4c2.8

[wz78]

im hitting a wall now. can't get my fsb over 232. even with turbo mode off and pat off with memory running at 5/4. computer start freezing and rebooting whenever the fsb was set to 232 or over. but the load temperature was only around 44c. any suggestions?

thanks a lot

 

[Jupiler]

What voltage are you running?

 

[wz78]

i can run fsb 230 stable at default votage with turbo mode and pat on. but i counldnt' run 232 stable with them off even at 1.575. should i incrase the votage? what's the safe votage range for this cpu. thanks

 

[a12bc3]

1.65v for every day use.

You say you have a SP-94 @ 44*C?!?

You should be good @ 250FSB = 3.5Ghz

 

[Sirius]

What are your timing at for your memory, you might have to up the vots. for your memory too. I have my 2.8 at 1.57 vots at 240 FSB. memory at 2.7 vots. 1-1, GAT at auto-auto-auto- dis-dis

 

[mrgreenjeans]

Mine's @ 1.65, FSB 236, memory is at 2.75, 5:4, 2-2-3-6. Increasing the voltage beyond didn't seem to accomplish anything. My OCZ will run stable @ 2-2-2-5, but I get better benchmarks at the prior timing. Still checking it out.

 

[wz78]

thanks guys, i'll play around with the votage then.

 

[Sirius]

1.65v isn't that alittle hight for only 236 FSB or does that help with the memory to be stable at low timing. I say that because I have my timing at 3-4-4-6 and if I try to go to 3-3-3-6 I cant even get a post.

 

[batboy]

Sirius, I have Corsair PC4000 Pro and I can't run it fast using Ras to Cas of 3. But, I can get to DDR510 (255 FSB) using the 1:1 ratio and 2.5,4,3,6. With the Max3, try using a little more vdimm.

 

[Sirius]

OK I will give that a try TKS.