Biostar p965 Overclocking Help

[TheSonOfX.51]

I just can't seem to get my overclock right. I can overclock my 6400 to 3.7ghz on the Biostar Tforce p965 and it will get to windows just fine. It also boots at 3.84 (480x8). Orthos stresses both cores and does not find any errors (for however long I can run it) but my computer randomly restarts even when it is not stressed.

I have played around with many diffferent voltages on the ram, cpu, fsb termination, northbridge but it still restarts. I loosened the timings on my ram too. It even restarts when I turn it down to 410 fsb. The temps are fine (cpu never goes above 60C and northbridge doesn't go above 50C; PWM is unknown, no sensor).

I have tried a couple different bios (Both deluxe and PT) and the Rebel's Haven modded bios. The latest Rebel's Haven PT bios did fix the issue I think(it ran for a day without a restart but I flashed back because I missed 3.7 ghz), but the fsb will not go above 449 no matter how much voltage is put in the northbridge and it isn't stable with anything higher than 430.

Does anyone have any idea what could be causing my restarts or can recommend a bios that should work well?

 

[TheSonOfX.51]

Does no one own this board?

 

[CpuMan]

I just can't seem to get my overclock right. I can overclock my 6400 to 3.7ghz on the Biostar Tforce p965 and it will get to windows just fine. It also boots at 3.84 (480x8). Orthos stresses both cores and does not find any errors (for however long I can run it) but my computer randomly restarts even when it is not stressed.

I have played around with many diffferent voltages on the ram, cpu, fsb termination, northbridge but it still restarts. I loosened the timings on my ram too. It even restarts when I turn it down to 410 fsb. The temps are fine (cpu never goes above 60C and northbridge doesn't go above 50C; PWM is unknown, no sensor).

I have tried a couple different bios (Both deluxe and PT) and the Rebel's Haven modded bios. The latest Rebel's Haven PT bios did fix the issue I think(it ran for a day without a restart but I flashed back because I missed 3.7 ghz), but the fsb will not go above 449 no matter how much voltage is put in the northbridge and it isn't stable with anything higher than 430.

Does anyone have any idea what could be causing my restarts or can recommend a bios that should work well?

I do not own the board so can't help you there. I know you say your temps are fine, but your running at 3.7GHz with a e6420, thats pretty much bleeding edge for that cpu for any normal pereson.

430MHz X 8 = 3.44GHz on a e6420 and is nothing to be ashamed of imo.

 

[xkon]

i remember buying one of the first biostar 965pt's. i'm not sure if it's the exact same board with a different name, but using the stock bios i remember having a hard time jumping into overclocks. using an e6300 (oc'd to 3.66ghz before ) i couldnt just start oc at 470 and woolah it works kind of thing. i'd have to start off at something relatively low. i remember 430 running fine right off the bat so i usually started off with that. then i went to 440, then 450, then 460, 465, 470, 475, etc... i eventually hit 499 and the computer refused to boot up after that. so i'd start the process all over again and when i hit the last known stable spot, i'd let it stay there.