OptiPlex 980, any diagnosis 4 lit and not start
Hi all
recently my Optiplex 980 refuses to start: when I press the power switch, starts a sequence of codes that always ends with the diagnosis of four all lit. The power switch is blue, and for a second flashing led hard drive. But nothing appens...
Any idea?
Thank you
Tiziano
Which doesn't seem to be a documented diagnostic led code...
Have you tried to disconnect all devices except keyboard, monitor and mouse?
Have you installed a new hardware or software recently?
You can try to clear the BIOS:
- Power off, unplug
- Power button press / hold for about 15 seconds
- Open the case and remove the motherboard battery
- Power button press / hold for about 30 seconds
- Use canned air to remove dust bunnies
- Reinstall the PCI cards and RAM in their slots
- Replace the battery (use 3 volt CR2032, if this one is old, ~ $2)
- Case and see if it boots now with only mouse, screen and keyboard
Tags: Dell Desktop
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