Yippie.. First support for Extreme CPU's & P78xx

I'd like to overclock my P8400 to 2.4GHz, but first I need to turn off EIST, but it is not in the 9C.20 BIOS. Is it in 9C.17 or is there another way to do it?

 

I am not sure I never tried it with my T5550.

 

able to pull out a stable 3.9GHz on 1.45v for my X9100 (havent tried undervolting) . 7805u cant handle the heat too well though. I could probably manage 4GHz on 15x @ 1.5v but again, the 7805 stock heatsink will most likely not be able to cope with that.

Idling around 75C and any CPU intensive task causes temps to sky-rocket to around 102C in the space of 7-10 seconds which consequently trips the auto-shutdown of my 7805u (i have yet to figure out how to bypass this, given that Intel states the X9100 failsafe is 120C).

 

Hello Moto - Still the idea of running a cpu that high for daily use is just crazy. 75c is what most people see on load temps, not idle. Seems way way to high for your idle temps to me. Try and find a better vcore / max ghz that is stable because that is way to hot currently. Just because the max fail safe is 120 doesn't mean the chip should be ran at 110 most of it's life (or whats left of it). Chips that are ran at extremely high temps will not last as long. If you haven't done so apply a decent thermal compound and clean out all the dust from the fans. Those temps are way to high lol.

 

no i totally agree.

i think it's my heatsink. Looking to replace it ASAP. the reason being that i'm thinking i've got some deeply ingrained ICD7 on it from previous applications that i cannot get rid of, despite my best efforts. Owing to this, it's more than likely having a deterimental effect on thermal conductive properties of the heatsink itself.

either that, or my technique of applying ICD7 on the CPU and northbridge is wrong.

 

If your laptop turns off from overheating then it is not stable. You should get your cooling fixed before you overclock. are you sure your CPU fan is even working? 75c at idle is really high, as I type this my CPU is idling at core #0 29c/ core #1 32c.

 

yeah CPU fan is working; one of the first things i checked when i first started experiencing high idle temps. 7805u is sitting on top of overvolted Cryo LX and Evercool NB-MA1 too.

gonna try ditching ICD7 and try AS5 + thermal pad on CPU and NB chipset respectively like how it was before.

I'm defining "stable" as "no BSOD under stress". i can enjoy long gaming sessions/general multi-tasking with no ill effect. Only when testing with OCCT linpack/orthos/intel burn test pushes temps way too high and causes the auto-shutdown.