Question about Dell OptiPlex GX520 PC Desktop

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I have tried everything I know but my optiplex gx620 boots with a black screen only nothing else

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  • 54 Answers

If your screen has nothing but black when you power it up IT IS NOT BOOTING UP. rephrase your question

Posted on Oct 19, 2013

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Posted on Jan 02, 2017

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SOURCE: optiplex gx620 black screen stuck on safe mode

Look at the motherboard (mobo). Failure of motherboards is usually due to breaking capacitors. A few years ago a capacitor company stole the "recipe" for making capacitors from another company and tried to make their own, unfortunately they did not get the ingredients right and the capacitors started breaking after 2-3 years of use. They sold these capacitors at very cheap prices and a lot of computer companies and power supply makers bought them. This is easy to diagnose. Look for capacitors (caps) (they look like little tiny soda cans) on your motherboard (mobo). They should be perfectly flat on top and not bulged or swelling or leaking anything.
You could also try to change out the power supply if you can find another one that fits it.

Posted on Mar 11, 2009

yngwei50
  • 134 Answers

SOURCE: Adding network drivers to dell optiplex gx620

Just download the drivers here the link http://support.dell.com/support/downloads/driverslist.aspx?c=us&l=en&s=gen&os=WW1&osl=en&catid=&impid&SystemID=PLX_PNT_P4_GX260

Posted on Dec 18, 2009

  • 1 Answer

SOURCE: Dell OptiPlex GX620 starts up then shuts down repeatedly

Try this: remove the DMOS battery and unplug the on/off switch plug. It's the one in the corner near the power supply. To be sure follow the cable from the front on/off switch board on back to this plug. Then plug the A/C cord in, if the system boots up fine, then replace the front panel power on/off swith board. Naturally you will not be able to power off the computer using the power switch (since we unplugged it), so you will have to just pull the plug. Hope this helps. Joe

Posted on Jul 22, 2010

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I have a dell opticplex gx620. It was working perfectly until the windows crashed. I have been trying to reload windows xp but once i press f8 to accept it will show blue screen.


You need an actual Dell windows disk to reload to a new hard drive as it will flash the associated drivers and boot sequence to the RAM. Nothing else works with DELL!

Oct 27, 2014 | Dell OptiPlex GX620 PC Desktop

1 Answer

My optiplex 790 want boot up


black screen of blue screen? try to unplug everything and wait 30 sec then boot up again

Aug 30, 2013 | Dell OptiPlex GX620 PC Desktop

1 Answer

System password for GX620 pc desktop


open up the machine and take out the battery for at least 30 mins.
don't power it during that duration.
put back the battery and boot,your bios will be reset.

good luck

Mar 27, 2013 | Dell OptiPlex GX620 PC Desktop

1 Answer

I can not instal w 7 in dell optiplex gx620 please help me


Things that you can try:

1. Restart the PC. Once the dell post screen comes up. Immediately press F12 (Keep pressing F12 key while starting up).
2. Boot Menu will come up on the screen. Make sure your win 7 disc is inside the cd tray.
3. Select your DVD drive and press enter.
4. A message will come up that says "Press any key to continue" press enter key real quick.
5. The win 7 installation should load.

Good Luck.

Jan 02, 2011 | Dell OptiPlex GX620 PC Desktop

1 Answer

On my dell optiplex gx620 all of the usbs front and back dont work after the windows loading screen but power is working, usb light works. i dont no what to do i have enabled them in bios and default...


my dell optiplex gx620 is coming on but its not passing the bios revision or the boot up page i have tried every thing removing the small battery in the mother board unplugging the hard drive, i even busted the whole system and it still not coming on. i have triied sending it into safe mode and the 1234 light are comming on i have runed out of option and i dont know what to do.this all started 3 days when i turned off the computer tried to put it on but after it came on pass the boot up page the screen was blank

Oct 01, 2010 | Dell OptiPlex GX620 PC Desktop

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