P5K SE Northbridge voltage

[yankee]

Anyone know how to up the northbridge volts on a P5K SE? I'm trying to get 4.2g go, and it keeps throwing random errors in memtest. I think my nb volts are too low.

Help!

[Leeghoofd]

Looking into the P5K SE manual the bios doesn't seem to have feature to up NB voltage... also you are not listing which CPU you are pushing towards 4.2Ghz, is it the E8200 in ya sig ? so that means 525FSB... kindda hard with such a mobo with almost zero tweaking options for voltages to get stable...

Time to settle for a lesser overclock or buy another mobo...

[yankee]

Sorry, yes i'ts the pc in my sig.

i was afraid of that. i was just wondering of i missed something. it's very troubling, playing with timings and voltages to find out the weak link is something you have no control over. time to back the mhz off a little bit.

it wouldn't pass memtest at 520x8, 620, 6-8-8-32 vcore 1.35 vdimm 2.3 it gets all the way to the end of test 4 then i keep getting 1 or 2 errors.

in searching, there were a few more settings i found out, like disabling spread spectrum, locking down the pci-e bus that may improve things.

also, is there a good primer on setting ram timings? I'd like to start changing some of the sub timings to see if it has an effect on things.

[yankee]

Just wanted you all to know I did finally hit 4.2 GHz on my p5k se. Don't remember what vcore was, I'll put it up when i get out of work. vdimm was at 2.2.
NB is definitely the limiting factor, won't go 1 mhz over this:
http://valid.x86-secret.com/show_oc.php?id=356644