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January 30th, 2025 01:56
XPS 8940, won't turn on anymore
Hey I could use some troubleshooting help! My XPS 8940 didn't go to sleep and wouldn't turn off the other day and was flashing but was not on so I held down the button to force shut it down and now it won't turn on. I cleaned it out and reconnected everything but still nothing I went as far as buying a new power supply (cheaper than a new computer) and it still won't turn on. Powe supply will light up green on original and replacement. Is it the motherboard that is bad? If so are my parts too old to replace or what would be best scenario to do with them? I would like to keep everything plan was to eventually upgrade power supply and graphics card maybe add more ram. Just lost at what to do next as I have a tight Budget.
16 GB RAM
I7 10700 (10th gen)
1660 ti 6 GB
BDRE Drive (Reads and Writes to Blu-Ray disks)
Killer Wi-Fi 6 AX1650i (2x2) and Bluetooth 5.1 Driver
Dnev
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19 Posts
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January 30th, 2025 17:28
Are there any blinking lights or sounds when you attempt to power it up? When you first plug it in, do you hear the fans spin at all?
If neither, it's likely that there's something faulty on the motherboard, as other components (GPU, RAM, etc) would likely be accomponied by a beep or light error code.
If you have a GPU installed, you can try to remove that and see if it will power on. You could also try removing all but the first stick of RAM as well (or do both for faster troubleshooting).
IF none of those help it power on, the next step would be a Motherboard. It's unlikely that the CPU is fried, but it's not impossible. Just be very careful as you remove and re-seat the CPU, as the pins are very fragile. Also, use quality thermal paste when re-installing (assuming you go through all this). Thermal Grizzly is highly recommended.
Best of luck!
RoHe
10 Elder
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45.2K Posts
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January 31st, 2025 00:17
Sure you reconnected everything to motherboard and new PSU?
Did you buy new PSU from Dell or is this a cheapie"knock-off"?
Possible new PSU is DOA?
Have you tried a different power cord to rear of PC?
If you're using a surge protector, power strip or uninterruptable PSU, remove those and connect PC directly to a working wall outlet.
Run the BIST on these PSUs, following instructions for PCs without a PSU test button.