My TC-885 Aspire Desktop Won't Boot

I have an Acer Aspire TC-885. It is a couple of weeks old. I opened it up today to add an Intel Optane stick in the M.2 slot. I put it all back together and it is basically dead. The CPU fan kicks on but nothing else. Computer won't boot. I removed the Optane stick, put it back together and it still won't boot. There is nothing on the monitor. No blue screen of death, no BIOS, nothing. It's like the HDD is not spinning at all. I'm looking for some positive suggestions on what I can try. The HDD is connected and everything else looks fine, but I am out if ideas right now and am hoping my two week old Aspire is not dead

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Commodore_1995#

Try the following: Unplug the desktop from the power outlet and press the power button for about thirty seconds. Then turn on the computer to test!

jonathanwylie

Some progress. The hard drive sounds like it is spinning again, or it least it spins on boot, but no video output to the monitor on either of the built-in HDMI slots or on the discrete graphics card I have in it. I removed the graphics card again and still nothing. It might be booting to Windows, but I have no way to tell if it is or not

Commodore_1995#

Now try disconnecting the rams memories and test each individually! Then unplug the hard drive and test it!

jonathanwylie

I only have one 8Gb stick, so I can't test without it...

Commodore_1995#

Put the ram in another slot and test it!

Commodore_1995#

Did you disconnect any cables when opening the desktop?

jonathanwylie

Ok. Done, but no change I am afraid. Still no video signal.

There is also no POST beep but I can't remember if there was one before this happened or not.

jonathanwylie

Yes, I disconnected the CD/DVD drive to access the M2 slot, but have reconnected it. The computer should work whether that is connected or not, right?

Thanks for all your help so far.

Commodore_1995#

OK! I suggest you first try disconnecting the hardwares with the desktop disconnected from the power grid:

a) System does not power up and the fans are not running.

1. Disassemble the PC to remove the VGA adapter, DDR memory, LAN, USB and other peripherals

including keyboard and mouse. Leave only the motherboard, CPU with CPU cooler and power supply connected. Turn on again to see if the CPU and power supply fans are running.