Keyboard Mouse lockup in 3D games

[Tonka]

I've just overclocked my Pentium3 650E to 133FSB. Everything is super stable except for when I played 3D game for about 5 minute my mouse and keyboard lockup. My PCI divider is at 1/4 cause it is more stable than 1/3. Any suggestion guys?

Asus P3B-F
P3 650E@133FSB
Elsa Gladiac
256MB HSDRAM
IBM 30gig 75GXP
SBLive MP3
3Com Office Connect 10/100
Promise Ultra66
Pioneer 10X DVD
Plextor CDRW 8/4/32

[Maxout]

Temps! Temps! give us your temps!

[Tonka]

My temp at idle is 32c and load is 36c.

[aug1516]

Those temperatures seem fine to me, it could be that the Elasa card is having a problem running out of AGP spec. Does the computer freeze when the FSB is only at 100mhz, or just when you overclock it? You should also update your motherboards bios to see if that helps

[grover]

I have a hunch that 3D games really tax the CPU core by operating more MOSFETs that would normally run on the chip, and heat it up considerably at the same time. This need to power more FETs would suck off more current and therefore increase the resistivity (V=IR); combined with the added resistivity of hot interconnects, the current availible/FET is reduced to the point where the CPU locks up. Try upping the voltage another notch.

[Tonka]

Thanks guys. I've just up my voltage to 1.95 and it seem to be very stable running 3d games. I was wondering is 1.95 a safe voltage to be at?

[Maxout]

Try it at 1.80, 1.85 or 1.90v see if it will stabilize. 1.95 is right at the top edge. and be sure to check temps as voltage increases can cause higher core temps.