God I'm glad I found this forum!
Alright, it seems that I am having a simular problem. I've been persuing it another direction though in the motherboards and cpu forum and everyone keeps coming to the conclusion of either getting a new motherboard and processor or that it is a heat problem.
Anyhow, I thought I would check out this forum and loa and behold, someone is having the same problem I am having, more or less.
I can run this damn computer all day long, but as soon as I get into some 3D games, the system will either boot me back to the desktop, or completely freeze. It can happen in five seconds or one hour, but one way or another, it's going to happen.
I've been going on the assumption that it was a component that was bad in the computer and thus I have ugraded (had to fly that one past the wife, but she finally relented after all my pouting). At first I thought it had to be the sound card, as I had more or less respectable name brands in my computer components elsewhere, except for the audio card which was Yamaha.
Since I was updating, I pulled out the Geforce Annihilator Pro card and replaced it with a Cardexpert Geforce 2MX (the wife got the Pro). I then yoinked out the Yamaha and replaced it with a Soundblaster LIVE! value card, which I had been wanting to do for some long time, and thought would be the cure to my problems. While I was there, I pulled out the three PC100 64 RAM and replaced them with PC100 128 RAM, boosting me up from 192 to 384. I was confident that all this would take care of the problem.
Here is what I currently have in my system after the upgrades.
WIN98SE
Soyo MB 5EMA+ v1.0
AMD K6+ 3D 450mhz
Cardexpert Geforce 2MX, 32meg
Sounblaster LIVE! value
384 megs PC100 RAM
Toshiba DVD-ROM SD-M1302
Imation CD-RW IMW040420
Western Digital 7200 RPM 13gig HD
US Robotics 56k Voice Win modem
Now I am at wits end! I've got the latest drivers, got some good hardware and I've even changed my OS twice (went from Win98SE to ME and back again, after I found that ME was a hog and slowed everything down). Of course, my last option I have been thinking of has been to replace the motherboard and the chip.
Now I'm seeing that you guys are thinking that perhaps the Geforce card is pulling too much juice, or perhaps not getting enough I should say. I currently have a 250W power supply. Is that a possibility here, or am I just grasping at straws? I don't really want to have to fork out the cash for a new power unit if I don't need it (well, I would eventually as I would need 300W + for the new Athlon chips as I understand it).
As you can see, I'm seriously frustrated and at this point, it's the principle of getting this damn thing fixed more than anything.
Oh, and I HAVE gone through and made certain that all the fans are working and are clean of lint and other such fan hazards.
Any help or advice would be very much appreciated and followed up upon.