Having problems with your Dell Dimension 2400 PC Desktop ?

Dimension 2400 Flashing Power Light

\015 This is all I get when I try to power the machine up. The green power light (L1) on the motherboard lights when AC power is connected. None of the four diagnostic lights on the back are on. I've disconnected everthing from the motherboard (including boards) except the cable connected to the power switch and the power cable from the power supply: same result. My best guess is that the power supply died, but how can I test to make sure?Thanks in advance,Steve\015

Answers :

TO TEST TO SEE IF THE POWER SUPPLY IS FULLY FUNCTIONAL IS TO USE A VOLT METER ON THE 20 PIN CONNECTOR THAT ATTACHED TO THE MOTHER BOARD. SET YOUR METER TO DC VOLTS IN THE RANGE OF +5 TO +20 AND TOUCH THE PINS FROM 1 TO 20 INDIVIDUALLY. tHERE ARE THREE PINS THAT SHOULD DISPLAY AT YOUR METER A +5 VOLTAGE READING, iF THEY DO, YOUR POWER SUPPLY IS OK. iF THE FAN OPERATES, THE POWER SUPPLY IS OK. ALSO, IF YOU DISCONNECT THE CONNECTOR FOR YOUR POWER UP BUTTON AND THEN REMOVEPOWER CORD IN THE REAR, WAIT 20 SECONDS THEN ECONNECT POWER CORD, YOUR COMPUTER SHOULD START UP AND YOU WILL HEAR THE FAN. IF YOU STILL GET NO ESULTS, YOUR FINAL TEST WILL BE TO RESET YOUR BIOS AT THE SOCKET. REMOVE GREEN SHROULD COVERING HEATSINK, RELEASE TWO GREEN PLASTIC STRAPS ON EITHER SIDE OF HEAT SINK, LIFT THE HEAT SINK FRO PROCESSOR. [ NOTE: IF YOU HAVE HAD YOUR 2400 AS LONG AS i'VE HAD MINE, THE HEAT SINK WILL BE A LITTLE SNUG TO THE INTEL P-4 PROCESSOR, JUST WINGLE IT A LITTLE AND IT WILL COME LOOSE. ] YOU WILL SEE THE PROCESSOR AND A SMALL LEVER ON THE SIDE OF THE SOCKET, RELEASE THE LEVER AND THAT WILL RELEASE THE PROCESSOR, REMOVE AND RE-SEAT AND REATTACH THE HEAT SINK AND RELATED PARTS, NOW TRY AND BOOT UP. THE FINAL TEST IS TO REMOVE THE CMOS BATTERY FROM ITS HOLDER, THIS TO RESETS YOUR BIOS. WE ALWAYS ASSUME THAT, THAT BATTERY LAST FOREVER, IS DOES NOT AND MAY NEED TO BE REPLACED THE LAST RESORT REGRETABLY, IS A FAILED MOTHERBOARD, IT WILL BE DIFFICULT TRYING TO FIND THE SAME ONE, EVEN ON E BAY, GOOD LUCK AND LET ME KNOW THE RESULTS, jOHN [email protected]
This is a blown motherboard, i have just repaired one of these today using a new board.The processor socket has blown. Boards currently available.
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\015\012[email protected]
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