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390 Will Not Start: Shuts off immediately, no beep codes
This is a duplicate of https://www.dell.com/community/Desktops-General-Read-Only/Precision-390-will-not-start/m-p/4542508 which went unanswered.
When I press the power button the power supply fan starts spinning, as do the two internal fans. All of the 1-2-3-4 LEDs on front panel light up for a moment but then I hear a click and it just goes off again. This all happens within 1/2 of a second. What I thought might be the click of a relay, is actually a click coming out of speaker "SPKR" on the motherboard. Seems like it is trying to make a beep code-- but gets cut short. The AUX_PWR_LED on the mainboard is lit as soon as the power cord is providing power to the power supply, and remains lit.
I tried all of the tips and tricks for troubleshooting power problems. I tried replacing the power supply with another WM283, but this did not make a difference.
Someone must have seen this before...
Mary G
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December 11th, 2018 08:00
Read only on a forum means the forum is closed and no one can post or answer.
Sounds like a major failure. Since you cannot access the boot menu to try a boot disk, might mean it's time to buy a new computer and replace the 10 year old model 390.
onionminion
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December 12th, 2018 23:00
You know, that 11 year old 390 running Windows XP had a faster boot and response time then my new Precision 5530 running Windows 10! And I had it all set up with several software development tools that are a pain to set up. I'd like to get this system running again, if only to create a virtual machine of the setup.
bradthetechnut
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December 27th, 2018 19:00
Mary G is right about it being a major failure. Probably the motherboard since changing power supplies didn't solve it. If the problem were anything less, a set of diagnostic lights would stay on.