Help: Antec TrueControl 550 Causes Crashes

[seannon]

Hi,

I've been running my system crash-free on a Sparkle 300 Watt Power Supply for over a year. I decided to add a lot of cards, DVD ROM, CDRs, and extra Hard Drives to my system (which I have not yet installed), so I bought an Antec TrueControl 550 Watt Power Supply from excaliberpc. Using the new Antec PSU, it loads into the BIOS, and in the BIOS I adjust the 3.3, 12, and 5 volt rails as directed using my digital multimeter (the antec truecontrol lets you modify your voltages +/-5%). Everything looked fine.

But after loading into WinXP Pro, it crashes. I reload it, set all my BIOS settings to default, and it crashes in the BIOS, corrupting the BIOS. I get a new BIOS chip, and try the PSU at default BIOS settings, but it just keeps crashing. Sometimes it crashes a few seconds after power on, and sometimes I can run windows for a few mnutes.

I've given the Antec PSU a good burn in, and I've checked the rails many times and they are always fine (right on the nose at 12, 5, and 3.3 volts). I have not changed or added any hardare yet. I put the 300 Watt PSU in and it works fine. If I switch back to the Antec, it crashes (sometimes sooner, sometimes later). Am I doing something wrong with the 550 Antec, or is it a bad PSU?

Here are my specs:
1700+ AMD JUIHB DL3C wk 319 running 200x11=2200
SLK-800a with fan
True Control Antec 550 Power Supply
WD 60GB HD Special Edition
Crucial 2100 2x256 running at 133 MHz
9500 ATI softmod to 9700
EPOX 8RDA rev1.1

Thanks for any ideas!
Sean

 

[beatle]

Sounds like you're doing everything right. Does bios agree with your multimeter's readings? If they all check out, I would RMA the PSU.