[P4] MSI 645 Ultra C , not overclockable

[CaineTanathos]

Well its a replacement , because my abid bd7II's temp sensor was broke so it was send back.

but with my bd7II I could set my 1.8 to 2.4 without any problems

with this MSI 645 I can't overclock **** , not even 1 mhz

fuzzy doesn't work.

And when I change the cpu voltage , I have to reset my bios , because it won't boot anymore.

changing the voltage for my memory works.

and I had to change it, because with the 3:5 the system wasn't stable (so it runs at 166mhz)

oh yeah I have samsung original PC2700

so anyone else has this kind of problems and maybe fixes

[bat2102]

I've got a MSI 645 ultra and 1.6P4. I'm having some very similiar problems. I tried Fuzzy Logic3 and ran the fsb at 126mhz which in turn pulled 2.1g's, anything more crashola. I set up the BIOS,multiplier @16, CPU/DRAM 3/4 and it ran at 166mhz,FSB@126,AGP running@80mhz and the PCI@40,voltage@1.775 I save it and reboot its works ok. Once again try to increase the fsb and it reboots but my screen takes longer to come on and all the letters on the screen are faded. I'm thinking my AGP and PCI multipliers need to be adjusted but I don't see anything in the BIOS. The temps are under 45C. The video card is a nvidia MX420. Anybody have any solutions.