Dell Precision PC Desktops keeps restarting - Precision Dell Computers & Internet

download and install BIOS and Network Driver for the system on dell site http://www.dell.com/support/home/us/en/04/product-support/product/precision-t3500/drivers

you need to scan your pc with an updated antivirus

This issue can be resolved by disconnecting the AC power cable from the system and draining the power from the system by pressing and holding the power button on the front of the chassis. (Approximately 30 seconds). Reconnect the AC Power cord and restart the system, issue should be resolved


link
http://stuartconnections.com/products/Computers/Systems/Desktops/Dell/Precision_690/Users_Guide/tools.htm#wp1056136

just try restoring again

Please restart the computer and while it is booting enter into safe mode by pressing f8 repeatedly. It will eventually it will ask you to enter safe mode. Enter safe mode option(not with networking or anything else) log back in. See if the computer freezes at this point. If it does not freeze after being on for an extended period it is more then likely a bad windows install or a virus. If it does the same thing we could be talking hard ware issues.

dell precision 390 pc booting problem what i do WebRepOverall ratingThis site has no rating(not enough votes)

A precision workstation is a high performance desktop system. The 450 is an older model but can still do well as a desktop system

Have you replaced the power supply at some point? You may have the wrong power supply...Your processor may not be able to handle the Graphic Card that you're trying to use...Graphics cards are very demanding on a computer and you may have pushed your computer beyond its limits with regard to how much graphics it can handle...

Hi..
This indicates the corruption of OS,, but still remove RAM and rub the eraser on the gold like surface of the RAM and restart the PC.. But still if you got the same error then re install the OS
Hope this has helped you... Thanks.....

As description of Manual of the pc ,

led 4 is means The computer is in a normal
off condition; the computer is
connected to an electrical
outlet
https://www.manualslib.com/manual/36893/Dell-Precision-Dcd0.html?page=35#manual

1 and 3 illuminate for Memory modules are detected, but a
memory configuration or compatibility
error exists.

solutions

• Ensure that no special memory
module/memory connector placement
requirements exist.
• Verify that the memory modules that
you are installing are compatible with
your computer.
• Reinstall the memory modules and
restart the computer.
• If the problem persists, contact Dell. (if have warranty)

But you can install and check one module at a time.
if not compatible each other may not display.

https://www.manualslib.com/manual/36893/Dell-Precision-Dcd0.html?page=40#manual