AC97 audio disappeared after overclocking - why?

[Philip]

Can someone please explain to me why my AC97 audio will always disappeared when I overclock my Celeron II 800 system from 100MHz FSB to 117Mhz or beyond? and, is there a way to get around this problem?

Thanks.

 

[outhouse]

some onboard sound really does not like to be overclocked some will take it others of the same brand cannot, i'm running the same software but at 167FSB with no problems there was an updated driver from the windows update website you could download that and see if it helps as you really dont seem to be that far out of spec's also you can try and remove the software and reinstall to see if that helps.

goodluck

 

[Philip]

The sound device was being ripped from hardware level so I think no software patch can fix this problem. Reason I said that was because the multimedia controller device didn't even show up at boot time if I overclock my system. I think that could be a working frequency problem, when running at 122 MHz FSB the PCI bus would become 122/3 = ~40.7 Mhz, I believe the onboard AC97 just don't like working on such frequency.

Any more hints for me to fix this?

 

[William]

well onboard audio usually is pretty bad so get a decent sound card. other than that i can't think of how to avoid it, it obviously hates its screwy bus speed.

 

[outhouse]

If you could raise your FSB to 133 it might then give you a quarter divider for your PCI bus speed then you would be in good shape.

 

[Nagorak]

Philip (Jun 14, 2001 01:16 a.m.):
Can someone please explain to me why my AC97 audio will always disappeared when I overclock my Celeron II 800 system from 100MHz FSB to 117Mhz or beyond? and, is there a way to get around this problem?

Thanks.

Not to be rude but is it really that big a loss?