I recently decided to upgrade my aging AMD Athlon 2000+ system with something fairly top of the line that would last me a good few years, so I purchased an AMD Athlon 64 FX-60 (dual core processor, last one being made for socket 939). To keep my new beast cool, I bought a new Zalman CNPS 9500. To complete my setup I bought a new motherboard, the ASRock 939Dual-SATA2. This thing cought my eye because it supports both AGP 8x and PCI-E video cards.
So, now that I was finished draining my wallet, I started putting it all together. Once I had everything wired up, I put the plug in and turned on the power supply via the switch. Everything turned on - for about half a second, and shut off. This surprised me because I hadn't even pushed the power button on the front of the case. When I did push the power button, everything did turn on... but I didn't hear a startup beep, and the monitor was black even though it was turned on. When I tried to hold down the power button to turn it off, It did nothing. I tried the reset button too, and that didn't do anything either.
I rechecked all of my connections, then I rechecked them some more. Finally I concluded that either my motherboard or my CPU was faulty. I knew it couldn't be the RAM, video card, or the power supply... none of those were new and were working great with my old system. The power supply is a 500 watt, which should be plenty for my system considering I have only one harddrive and one dvd-rw drive. So this morning I went down to my local compusa and bought a new, different socket 939 motherboard. I took my other one out, put my FX-60 in, wired everything back up, and turned it on. It did the exact same thing. "Aha! It must be the CPU that is faulty!" So thinking this, I took the new motherboard I had just bought a few hours before back, got a refund. While I was there I bought a new AMD Athlon 64 3200+ as a temporary replacement while I send my FX-60 back to newegg and wait for a new one. I took the 3200+ home and popped it in to the ASRock, wired everything back up, and turned on the power. To my dismay, it did the exact same thing.
So, I had replaced the motherboard to see if that was the problem, and when it did the same thing I took the new motherboard back. Then I got a new CPU since I figured that was the problem when I had ruled out the motherboard, but that didn't work either! I'm really lost on this one, can anybody help me out? Has anyone ever heard of a problem like this? Again, what it does is when I flip the switch to the power supply it turns on for literally about half a second. If I push the power button on the front of my case, it turns on, but I hear NO beeps at all, there is absolutely nothing on the monitor, and the only way I can turn it off is by using the switch on the power supply itself.
Thanks in advance to anyone who takes the time to read this and reply.