Computer wont even boot to bios

Hello yesterday my computer worked perfect but now it wont even boot to bios.
No Beep Codes either. When I press on, a fan( I dont know if its from CPU or Graphics Card) go on and off.

Graphics Card:ATI Radeon HD5770
CPU:AMD Phenom 2 X4 964
Motherboard:M4A88TD-M USB3 (ASUS)

2 Weeks ago I had the same Problem but strangely after I changed Audio System it worked... until this day (with other audio system).

Please help
6 answers Last reply Best Answer
More about computer wont boot bios
  1. It could be: CPU, Motherboard, 1 Ram stick, hard drive, video card, sound card, power supply, loose connection. 1st thing to do is eliminate as many points of failure as possible. (remove everything but motherboard/ram/powersupply/video card)

    When it could be SO MANY things, usually it's the power supply is what I've found in my experience
  2. disconnect all cables from system, most importantly the power cable. let the system sit for a minute, reconnect just power, keyboard, mouse and video, and see if it boots.

    if not, try a new power supply.

    or try resetting CMOS if possible.
  3. I second daswilhelm. It is more likely to be your PSU (power supply) but if your fans go on and off, you may want to try clearing CMOS at first. Make sure you do it a few times because a lot of people do it wrong the first time.

    If no power is going to your computer (i.e. you don't see any indicator lights on), then it's probably your power supply.
  4. Best answer
  5. thanks it was the ram! DRAM light was always red so I switched the rams and now it works.
    Thanks for the help!
  6. glad I could help
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