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Yellow blinking light and no power

\015 Went to turn computer off last night and when i went to turn it on this morning all I got was a blinking yellow light....What's wrong\015

Answers :

You did not specify the brand but I assume it's a Dell and no beeps are heard, no CPU fan is turning on, only blinking yellow light. This brand usually experiences this problem.
  1. First, check the power supply. Disconnect connectors from the board and make a jumper wire for the green wire to any black wire. If the PS fan does not spin then it's busted, else proceed below.
  2. \015\012
  3. Reconnect connectors except the one with 4 wires, 2 yellow and 2 black, then switch on. If CPU fan turns on then you have a bad processor.
  4. \015\012
  5. If the fan is still not turning on then check the USB port pins for short circuit.. disconnect it from the board and switch on.
  6. \015\012
  7. Do the same with other hardware connected to the board.
PS: The metallic casing of computers must be connected to the common ground of the power utility to protect it from stray currents that result to damage of sensitive components such as processors, memory and hard disks.
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