pc wont boot, no beep.

  Tinker2 18:57 PM 25 Mar 13
Locked

Pc won't boot, no beep, amber light on mobo, hdd spins up, dvd drawer works and light comes on,fans working, no activity from monitor but I know its ok, hdd light on steady, all this for about 10seconds then all shuts down. Any ideas? Pull, wait, then re-install cmos battery? Psu failure?

  Fruit Bat /\0/\ 19:00 PM 25 Mar 13

Overheat

Clean fan and Cpu heatsink retry

  Tinker2 19:04 PM 25 Mar 13

Cleaned everything, new heat tape, still no joy.

  thms 19:21 PM 25 Mar 13

Remove memory modules and try to restart. If you get to post it will show error. If you get that far try modules one at a time.

  LastChip 19:21 PM 25 Mar 13

For starters, eliminate all peripherals by disconnecting power to all drives, so only the motherboard, CPU and memory is left powered up. Then try again.

If the system now stays on, the problem is with one of the drives.

If it still fails, carefully remove the memory and try again. You should now only be powering up the motherboard and CPU. Again, if it still fails, you've narrowed it down to the heart of the system and the power supply.

The only way you can further check it, is via substitution, or if you have specialist diagnostic kit.

At that point, it could be the power supply being low on one of the power lines, or sadly, it's time to invest in a new motherboard and CPU.

  namtas 19:28 PM 27 Mar 13

I had similar problem as yours on 15th March I had delayed loading the normal MS update until 14th. PC ok when shut down next day as you describe. I could not sort it at all, tried all the normal stuff like reseating memory etc, could not even get it to boot into safe mode. Required reinstall to sort it.

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