Modem Reboots computer?

Have an older system that every time that I try to dial out it causes the computer to rebot itself.

WIN98SE, SABRE computer, 32 meg ram, 4 gig HD

there are two thing that come to mind, a bad PS or a virus.

Checked Both , no viruses, and the PS checks out ok. (ATX PS.)

Try it with a different modem. the one currently in the machine is probably just defective.

Have used 4 different modems PCI and or ISA same thing happens with them also. LOL But thanks

I had the same thing happen with a old 486sx25, pulled the soundcard and end of reboots, bad soundcard.

Just a thought

Yes. See if it still reboots when you pull a card. then replace that card, and try another. If so, your power supply is a bit lean. Might want to check into replacing that.