Computer Doesn't Turn On

[WinblowsME]

I've had no problems with my PC before. Then, all of a sudden, the computer doesn't turn on. When I try to power up my PC, the power light comes on, but I hear no beeps and the monitor remains black. The CD-ROM drive, hard drive, and floppy drive are all off. All the LED lights for each never comes on, not even flash. The fans are running and the motherboard light is on. I've check all the wiring and cables and all seem to be tightly secured. Is this a power supply failure?

Here are my computer specs:

APEX PC-115 White/Gray Steel ATX Mid Tower Computer Case ATX12V 300W Power Supply
ASUS P4S800-MX V1.04 Socket 478 SiS 661FX Micro ATX Intel Motherboard
ATI 100-435002 Radeon 9800PRO 128MB DDR AGP 4X/8X Video Card
ALPS Beige 2.0/1.0 MB 3.5" Internal Floppy Drive
CORSAIR XMS 512MB 184-Pin DDR SDRAM DDR 400 (PC 3200) Desktop Memory Model CMX512-3200C2PT
Creative Sound Blaster Live! 5.1 SB0220 5.1 Channels PCI Interface Sound Card
SONY CD Burner Beige IDE Model CRX230ED
SAMSUNG SpinPoint P80 Series SP1614N 160GB 7200 RPM IDE Ultra ATA133 Hard Drive
Intel Pentium 4 2.26 Northwood 2.26GHz Socket 478 Processor Model BX80532PE2266D

 

[satrow]

It does sound like a PSU failure.

Try disconnecting all USB peripherals except keyboard/mouse and try again?

 

[wahnula]

First remove the power cable from the rear of the PSU. Remove ALL power connectors, including mainboard. Half-second bursts of canned air to clean all connectors. Work I/O switch and 120-240 slide back and forth. Re-connect and try again.

New PSUs are cheap, and it's always good to have a spare. Testers are cheap too, but I prefer a multimeter.

Best of luck.

Tony

 

[cdogg]

It could be a failed power supply, but it could just as easily be a bad motherboard, CPU or video card.

It's possible that your system is booting up since you're not hearing any beeps, but there's no signal to your monitor (bad video card). It's also possible that your CPU is fried/defective and it's stalling the motherboard. You just don't know until you start swapping in components. If you are the type that doesn't have access to spare parts, then I suggest you start at the cheapest and easiest to replace, which is the PSU (power supply unit). Then I would go motherboard, CPU, video card. Remember that you can always resell on eBay, so it's not a total loss if it doesn't fix the problem...

~cdogg
"Insanity: doing the same thing over and over again and expecting different results." - Albert Einstein
[tab][navy]For general rules and guidelines to get better answers, click here:[/navy] faq219-2884