having start up problems :-(

First of all, i put this in the cpu overclocking section which didnt help much. Probably cause people dont scroll down to see overclocking section, so i thought i'd put this in dis section.

OK, i have Microstar MS-6309 mobo,

a P III 600/133 and can overclock to 661/133 using
<CPU Host/PCI Clock (MHz): 147/36>

but when I try to use 154/30.8 (the next higher setting) the computer starts but nothing happens. I have to short the cmos and restart the computer and then it says:

CMOS Settings Wrong, CMOS/GPNV Checksum Bad, and CMOS Display Type Wrong.

and computer goes to default 600/133 speed.

if you notice 154/30.8 the pci clock (30.8) is out of ratio when compared to 147/36, is that the reason?
or is it my graphics card (radeon 64sdr) or other components that dont like higher speeds?
i've tried all other settings up to 171 but same thing happened. (didnt wanna go to 200 fsb)
also tried to increase voltage from 1.65(default) to 1.70, but same thing.

After overclking to 661 and playing hardcore 3d games, the cpu temp is 38 deg celcius, pretty low for overclocked.

I also tried to change the voltage but kept getting the same message at next higher setting.

some of my other settings are:87.5/29.2
85/28.3
200/40
190/38
180/36
171/34.2
166/33.2
162/32.4
159/31.8
157/31.4
154/30.8
etc.


thanks

thanx,
i can set the memory to either 100 or 133 independent of cpu on this motherboard. setting it to 100 didnt work.

i'll try both cas2 and 3 (never thoutht of this one)

by the way I have LED diagnostic function (4leds) that can tell what's wrong.

when the above mentioned problem occurs, the lights are green, red, red, red which means 1000 and that means -->Initializing Video Interface.

i dont know what that means.

anyone who can help me on this issue?

chipset is via vt82c694x chipset
video is radeon 64 sdr

by the way, tom's done a review on this mobo. and i dont recall him mentioning any problem like this with this mobo.