Dell Optiplex 9020 PSU Problem Part 2

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J

jdf456

PCHF Member
Oct 12, 2021
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Hello,

Sorry, I am re-posting because I have taken a video of the startup process. Thanks for the previous replies on
installing software to identify the problem, but at this point I can't even access the OS for long enough to make
any changes.

I have a refurbished Dell Optiplex 9020 that turns on and off randomly. I hope this thread can help anyone else
with similar problems, and again I really appreciate any advice and apologize for not replying to previous threads.

Here is a link to the video (an mp4 file hosted on Wetransfer):

we.tl

Dell Optiplex PSU.mp4

1 file sent via WeTransfer, the simplest way to send your files around the world
we.tl we.tl

Thanks in advance!

-J
 
Thanks for asking! I can definitely provide any needed specs.


As far as posts by commentators on the original thread:

1)
If you bypass the power switch does it make a difference?

Could be the PSU.

I do think it is the PSU at this point. I can't even keep it on long enough to access the OS or enter through BIOS (it will power off before
I can make any changes).

2)
Could be a heat problem
Can you go here and download speed fan and install Click On Me .
Run speed fan then click on the Exotics tab > show the magic. post a screen capture. To do a screen capture in Windows 10 press the windows key and the print screen button together. It will put the image in Pictures>Screenshots

I can't install any software as the PSU problem is getting progessively worse. I was using the computer last summer in extreme heat
for many hours on end in a very hot room, so I wonder if there is hardware damage from that.

I am wondering if replacing the PSU is worth the cost. Any advice would be greatly appreciated.

Thanks very much for the assistance and consideration.

Best Regards,
J
 
any chance you can get your hands on another PSU - friend, family, neighbour etc>
that would be the component I'd be looking at first.
it doesn't have to fit inside the case, just so long as it has the right motherboard plugs.

next would be to remove the memory sticks and video card if an add-on one has been installed.
clean those components, their circuitry and contact points and the motherboard slot they go into.

if still no luck, I would be disassembling the whole rig outside the case on a piece of cardboard.
and when reassembling, only plug in the core components essential to booting the PC, so no keyboard or mouse (at this stage), no CD unit or wifi adapter.
at this stage we only want to get the PC to turn on and stay on.
 
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