D975XBX OC question

[eDDi]

Bad axe mb, 805d cpu, ram crucial ballistix.

my memory is set to 533mhz as my FSB frequency override also 533.

when i set percentage to max, that is 30%, my oc gets to 3455, that is 173*20.

if i try to change FSB frequency override to 800MHz in order to achieve higher OC, it does not boot. also tried negative 30% with 800MHz. Tried ram on 667 and 800MHz, also 400 MHz, always same result. no boot

in windows, it overclocks easy to 3900+ MHz, so that could not be a problem. I also read Onepagebook's guide.

no luck for me. plis help.

regards edi.

[Onepagebook]

post no boot bios screens so we can help you

I can guess it now
no, set the ram to the 400fsb, boot into windows and pull it up to what you need
by clock gen

[VictorWang]

clkgen to 3.9Ghz pi_1m can only allows u boot from 3.8G set in bios.
you can try 800fsb, nega=8
ram=667 4-4-4-12 vdimm=2.1v
that maybe better.

[eDDi]

hey, thank you verjy much for your replies.

now i can overclock to 3920.

on this board it is not possible to change multiplier in bios?

i have latest official bios.

[Esparco]

eDDi how do you change the fsb override?? did you do the oc debug mod??
and if so can you plz post me some screenshot how you did it?? cuz i'm afraid to melt the MOBO with my soldering skills :slap:

[eDDi]

i did it with conductive paint.

[Esparco]

can you upload a picture of your mod plzzzz man i tryed to do it on my rev304 and it didnt work.. what rev u have?? and what bios?