Question about Dell Dimension E521 PC Desktop
Power supply seems ok. Will not post-could cpu be in sleep mode?
Posted by Anonymous on
A steady or Amber blinking power button indicates a low voltage problem. This can be caused by a defective power supply or a defective motherboard. Just to make sure that nothing else is causing the problem, remove any PCI cards like modem, video card, sound card, etc... Remove the memory modules and disconnect cables to CD/DVD drives. Look at the USB ports to see if any are damaged.
Posted on Jan 03, 2015
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Posted on Jan 02, 2017
FIRST IF YOU REPLACED THE POWER SUPPLY OF YOUR DELL PC,
MAKE SURE IS A RECOMMEND POWER SUPPLY FOR DELL COMPUTERS ONLY
BECAUSE DELL USE A DIFFERENT (NONSTARD) PS
AN PLEASE DON'T TURN YOUR PC ON, TILE YOU ARE SURE I'TS A DELL COMPATIBLE POWER SUPPLY
YOU CAN FRY YOUR COMPUTER
ON THE MOTHERBOARD I'T MAY BE THE BIOS (BIOS STANDS FOR INPUT /OUTPUT SYSTEM) I'T A CHIP ON YOUR MOTHERBOARD THAT CONTROLS THE SYSTEM HARDWARE AND ACTS AS AN INTERFACE BETWEEN THE OPERATING SYSTEM AND THE HARDWARE
I'T MAY BE FLASH
IF IS FLASH ,
YOU PROBABLY NEED TO REPLACE THE MOTHERBOARD
OR CALL DELL TO SEE IF THEY CAN FIX IT
Posted on Aug 20, 2008
SOURCE: Dell GX280 no display
I solved this on a Dell GX280 by removing the CPU and then reseating it in the socket. Also cleaned cpu and heatsink and applied new thermal compound.
Posted on Nov 01, 2008
SOURCE: dell c521 won't start
- disconnect the hdd and optical drive cables, remove the expansion card, reseat the atx and 12v cable and turn the computer on. if the power led is glowing green connect the devices on by to find what device is causing the no post issue. after the strip down if the power button is still yellow replace the motherboard
Posted on Dec 19, 2008
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