Hangrails

PC reboots when dropping into 3-D applications, any thoughts?

Hello everyone and thanks for stopping by my question. I have an AMD 3200 which I just upgraded with an ATI X1950 Pro 512mb. So I also purchased a Mushkin 550200 550W power supply off newegg to power the hungry vid card. It worked flawlessly... for about 1 month. Then, while on vacation, my bios battery ran out on my board and I replaced it when I returned. I reset everythig and ever since then, when I drop into a 3D app the pc beeps and goes black like it's rebooting but it just hangs there at a black screen until I totally power it down and wait a few seconds before turning it back on... and then it's fine til I try a 3D app again. I'm runnin a Gigabyte 7NNXP mobo with a gig of ram. I'm personally leaning towards the power supply... it's dual rail and I'm thinking it's crapping out when it draws on them. Any thoughts would be greatly appreciated!!! Thanks!!! I've pretty much tried everyone's suggestions, but to no avail unfortunately. I placed a support request with Mushkin and we'll see what they have to say. I am getting some really strange voltage readings on my Mobo Monitor so maybe it really is a bad PSU. Thanks for all the help anyways!!!

Public Comments

1. Yes i do have a though stating that you should only post one question. DON'T POST TWO QUESTIONS ABOUT THE SAME THING.
2. look in event viewer and see what it say about why it reboots..also change your video card driver...when you go to 3d boom it invokes your video card driver and it's no good and then you blue screen and reboot..
3. The pc may be over heating and can not deal with it. You may be right with PSU but unlikely.
4. I think the key to solving this mystery lies in the fact that you had to change your motherboard battery. That will cause you to loose your settings. I would uninstall your graphics card - reinstall the drivers - probably best to check with ATI about upgraded drivers.
5. right click on mycomputer and goto properties... advanced / startup and recovery... uncheck automatic restart. next time it happens, hopefully you'll get a blue screen. post its contents.