Problem with motherboard? New system from NewEgg
Posted on 2009-04-21
I bought a bunch of parts from NewEgg to build a new desktop PC. I've assembled about a bazillion PCs so I anticipated this process would take just a few minutes. Going on about 2 hours now, I'm starting to get irritated because the damn thing won't work. Here are the parts I have:
CPU: AMD Phenom 9850 2.5GHz Socket AMD2+ 125W Quad-Core Black Edition w/ Arctic Cooling Freezer 64 Pro 92mm CPU cooler
Memory: 4x Kingston HyperX 2GB 240-pin DDR2 1066 SDRAM
Motherboard: ASUS M3A78-EM AM2+/AM2 780G Micro ATX motherboard
Video: XFX GS250XZDFC GeForce GTS 1GB GDDR3 PCI Express 2.0 x16
Hard Drive: Samsung Spinpoint F1 HD103UJ 1TB 7200RPM SATA 3.0Gb/s
Case: Antec Sonata III 500 ATX mid tower
When I first put it all together with everything installed, I hooked it up to power, video, and keyboard to do a quick test. The power LED came on, all the fans came on, but no beep and nothing showed up on the monitor. I'm not sure if it's supposed to beep because I don't s I tried both video ports on the XFX card, and I even tried both video ports on the motherboard itself. Nada. The fans keep running, the case's power LED is on, and the green LED on the motherboard is lit. I tried to turn it off by pressing and holding the power button, but nothing happened... everything kept running as it was. I tried pressing and releasing the power button to see if that did anything... nothing. Reset button: nothing. The fans and LEDs stayed on. I hit the power switch on the PSU itself and the machine shut off. Okay, weird, so I flipped the PSU back on and tried turning the computer on again. Same thing, the fans and the two LEDs run but nothing else happens, and I can't turn it off using the power button on the front of the case. I turned off the PSU again, and this time I removed the second pair of memory.
I turned the PSU back on, pressed the power button on the case, and this time instead of the fans and the two LED's coming on, the fans come on for a split second (along with the case's power LED) and then turn off. The green LED on the motherboard stays lit.
I powered off the PSU again, put all 4 memory sticks back in and tried starting the machine again. This time, the same behavior: the fans come on for a split second and stop. If I press the power button again, nothing happens at all. I tried removing the video card and still it won't POST.
I'm _assuming_ this is the motherboard but unfortunately I don't really have any other parts to try interchanging as a test. What do you think?