Blank screen after adding ram on my dell optiplex gx520

SOURCE: Dell Optiplex GX520 message:

Hey,

there is a 3 volt flat battery inside the computer, it in most cases clearly visible.


Replace it with the same type of battery, then adjust the clock in the system setup.

All done, all fine.


Let me know if you need anything else.

Thanks,
Ekse

Ginko

• 19396 Answers
• Posted on Mar 04, 2009

SOURCE: Bios default password

The BIOS default password is just blank, and it is not asked.

When you set a bios password, you are asked to enter a value, therefore if bios is asking the password, the password had been changed.

To reset the bios password if you do not know the password you need to access to motherboard and temporarily remove battery for few seconds.
Removing battery will reset bios and delete the password.
Unplug power cord before accessing the motherboard, and try not touching the motherboard with your finger.
Put battery back in place before restarting computer.

See also the following websites:

technibble.com/..
satyathakur.com/blog/

SOURCE: Dell OptiPlex GX520 PC Desktop Problem

Hello everyone, check your cpu - I've just had one of these in for repair and the cpu was faulty - removing the ATX 4way 12v lead let the pc start rather then detecting a short and shutting the psu down. Changing the cpu cured the fault.

Thanks

SOURCE: My Dell Optiplex GX520 will not boot. There is no

If 1 & 2 are off ... then you have problems.

Memory modules are detected, but a memory failure has occurred.

• If you have one memory module installed, reinstall it and restart the computer. (see Memory for instructions on how to remove and install memory modules.)
• If you have two or more memory modules installed, remove the modules, reinstall one module, and then restart the computer. If the computer starts normally, reinstall an additional module. Continue until you have identified a faulty module or reinstalled all modules without error.
• If available, install properly working memory of the same type into your computer.
• If the problem persists, contact Dell (see Contacting Dell).

• If you have one memory module installed, reinstall it and restart the computer. (see Memory for instructions on how to remove and install memory modules.)
• If you have two or more memory modules installed, remove the modules, reinstall one module, and then restart the computer. If the computer starts normally, reinstall an additional module. Continue until you have identified a faulty module or reinstalled all modules without error.
• If available, install properly working memory of the same type into your computer.
• If the problem persists, contact Dell (see Contacting Dell).

SOURCE: Dell Optiplex GX520 PC won't boot - power light at

OK the first step is to remove the side of the case and check that all the leads are firmly inplace. - If this does not fix it post a comment.