Question about Dell OptiPlex 780 PC Desktop
Does the system manage to boot at any point? If it does and there is a period before it restarts the system could be overheating. I would ensure all cooling fans and heatsinks are clear of dust/debris.
If you are unable to boot to Windows, try starting in safe-mode. If you can start in safe-mode it will be a strong indication there is problem with your software. At this stage in safe-mode I would first of all try a system restore back to when my computer last worked, if you have no success I would then suggest a virus check/clean in safe-mode.
If you find the system won't even start in safe-mode I would check your RAM is seated correctly, and if that doesn't solve your issue proceed to check/test all other components of the computer. Being a DELL if you press F12 during start up I believe you can ask the system to do a hardware diagnostic test.
Posted on Mar 20, 2014
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Posted on Jan 02, 2017
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