Help with ASUS CUV4X

[Warren]

Okay...
I just bought a CUV4X MB with a PIII 800 (retail box) 100Mhz FSB (not sure of E or EB designation). I'm trying to overclock it with little success.

I can get it to run at 110Mhz FSB but that is it...after that it dies...no more POST.

I'm using 133Mhz ram (mid-range stuff), a Diamond V770 VC (I've tried with a diamond Viper II also) unfortunately I've not purchased a GeForce card yet. Standard fans so far, I figure if I get it to post at a decent overclock, i'll purchase a decent fan.

Any ideas or things to check? I'm kinda new at the overclocking stuff.

Thanks.

[Bigwave]

The cuv4x mobo posts at default voltage and then runs your cpu at the voltage you specify in the bios!

Crappy hey?

So your probably out of luck I would say as the 800 probably wants more voltage to post!

Try to start your pc at default speed and then clock it up to say 120fsb 1.75 or 1.8v depending on your cooling and see if it posts then!If it does then its the cold boot voltage problem that you have!

[corky]

warren...

The PIII 800eb IS a 133 fsb cpu. so..by selecting anything less is actually UNDER clocking. In the bios, set everything to default, boot...then go back into the bios and up the fsb to 147.5. This will give you 887 mhz. I have my fsb set to 150 and it gives me 900 mhz and it is very stable (same Motherboard and cpu.)

good luck

[Bigwave]

He didn't say he has a 800eb ! Where did you get the idea that he does?

[corky]

He said in his original post he didnt know whether it was e or eb. I was giving him advice if it IS an eb :)

[Dai the Flu]

I'm running the same system... honestly it sounds like your chip just doesn't like going any higher... mines a philipines cC0 and my voltage is at 1.95... the rest is in my sig...

ps. what voltage are you running at? and what brand clock generator is on your board... (small ship beside the ram, mine's an ics) and if you wanna try this, you could put a small heatsink on your clock generator... i got from 1040 to 1080 by doing that (130fsb to 135)