short (ok, long) version of current problem:
recently put together my first system. I used my old ati 9500. everything was ok. upgraded to an ati 9800 I had and had display problems.
I had read a post somewhere about problems with the 9800 and asus A8V. It suggested disabling fastwrite and setting agp to 4x. I disabled the fastwrite and the computer started rebooting everytime windows loaded for only about 5 seconds. I could not get into bios anymore to change it back. I flashed bios to newest version and same thing. I flashed back to original version, same thing. I called asus and they said sounded like a grounding problem. They suggested taking the mb out of the case, laying it on cardboard and trying to boot again. Big mistake for a newbie like me because when I powered on, my new mad dog 500w psu popped, sparked and smoked. I must have had something touching where it wasn’t supposed to.
I figured I fried everything but decided to try an old cheapo 400w psu. All my fans came on (cpu,case and video card) but I could not boot or even turn anything off with the power button.
I figured I would start rebuilding piece by piece to see where exactly the problem might be instead of buying everything at once, so I got a thermaltake 430w psu and coolermaster centurion case from newegg (I needed a new case anyway)
I put everything together and got nothing, only the green light on the mb was lit. I had no power otherwise. I put the cheapo psu back in just for kicks and like before all the fans came on but that was it.
I know I am probably going to have to replace everything, including the cpu I also just bought. It sucks but I guess I will chalk it up as a learning experience.
I suppose my question right now is do you think my new thermaltake psu is bad. Assuming the mb and cpu are fried I would think it should still power the fans like the cheapo does.
Thanks to anyone who reads all this and has any ideas