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HELP! Is my power supply killing motherboards, or is it me??

AndrewR

Lifer
I bought the Antec SX1030 some time ago and installed my main system in it, an Abit BP6 running a Celeron 366 at 550MHz at 2.2v (was running off of a PC Power & Cooling 235w). The Antec power supply wouldn't run the Celeron at 550 so I just used it at 366.

Anyway, after awhile, the fan header apparently died, and the chip ran extremely hot (didn't realize the fan had died -- chip was running at 150 degrees F). Soon thereafter, the board died altogether. I RMA'ed it.

In selling some parts, I traded for a Tyan Trinity 400 (S370 and Slot 1). I installed the board, and started Windows working again with the Celeron at 366. I subsequently received a PIII-700 CuMine that I bought and decided to install it.

I put the chip in, and it wouldn't boot. The power flowed, but that's it. I realized that the board needed a BIOS update. I reinstalled the Celeron and updated the BIOS. Rebooted, everything was fine. In the meantime, the hard drive LED was acting strangely. It wouldn't turn off -- just stayed lit all the time.

If you've never seen the Trinity, it has a little block of jumpers that looks like a small floppy socket (or IDE) since it has a little black plastic border around it. Well, it's confusing as hell, and I wasn't sure how to plug the LED cable in. The way it appeared to show in the manual resulted in the light being lit all the time. I changed it, and the light didn't come on at all. I changed it a third time, and the "bad thing" happened.

All of a sudden, the board would not start AT ALL. The power indicator on my network card indicated that the board is receiving power, but the switch does not do a thing -- no fans, no PSU, nothing. I checked the connections and tried again. Nada. I thought perhaps that the CuMine was being freaky so I put the Celeron back in. Nothing again. Uh oh. I can't see anything wrong. I switched back the LED cable, but still nothing is happening (the LED cable and the power switch connector are both part of that block of pins).

Any ideas what's going on? There is power flowing through the board, but I just can't seem to turn it on. Is it dead or is there something I can try? Could it be the PSU?

Thanks, I could use some advice!!!
 
I tried every possible configuration with the power switch connector, and it doesn't work. Any ideas here? Please tell me I'm wrong, and there's a very simple solution. 😀
 
make sure the CPU is inserted fully, and also check the back of your PS to make sure that it's set at 115V instead of 220. good luck
 
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