My computer went blank when turning it on
1) Computer isn't working, due to the Processor isn't working, due to a bad Power Supply.
Weak voltage power rail.
Enough power perhaps to light LED lights, and maybe spin fans, but not enough power to turn the Processor on.
Computer Power Supply's are rated in Wattage.
Volts times Amperes = Watts.
(Average computer power supply in a fairly new computer, is rated at around 300 Watts)
A) ALL of the LED lights combined, use less than 1 Watt of power.
B) EACH fan uses 2 to 3 Watts.
C) A typical Processor may use 51 to 125 Watts.
Depends on what Processor it is.
Power Supply with a weak voltage power rail, can have enough power to light LED lights, spin fans, but not enough to turn the Processor on.
Test the voltages of the Power Supply,
Or, use a KNOWN to be good Power Supply, that has the correct amount of power cables, the right kind of power cables, the correct size, and shape of the case, and enough Wattage, for a test unit..
A bad Power Supply is one of the leading causes of computer failure.
Sep 19, 2010 |