PC dead after having touched led strip

[volharder]

My new PC was working fine, and while waiting for an install to complete (so the PC was on) I touched a led strip.
The PC shut off immediately (no smoke or anything) and now remains completely dead.
If I switch it on, nothing happens: no working fans not even on PSU, no leds anywhere, no clicking sound from the HDD (OS is on SSD though).

I checked:

• the power cord
• the switch on the PSU , '1' is pressed
• I looked at and pressed power cables on motherboard
• The PSU passes the paperclip test: its fan spins up
• I did shortcut the cmos pins for 10 sec for a reset of the CMOS on the motherboard

What to do?
I am thinking of replacing the PSU, and if that doesn fix it I will replace the motherboard (reluctanty because of the OS license issue that will arise).
Any better thoughts? Is the PSU still a suspect after that paperclip test? Did I overlook something?

I7-9700F, MSI MAG Z390 Tomahawk, 750 Watt Cooler Master, NVIDIA RTX 2070 SUPER 8GB,
Crucial 16GB ValueRAM DDR4-2666, Cooler Master ML120R RGB water cooling, SSD 500GB Crucial MX500, HDD 3000GB SATA III

 

[Dark Lord of Tech]

Paper clip test , only proves there is some power. Doesn't mean it's a viable power supply. I personally don't think it's the PSU.

 

[DSzymborski]

Since you're getting a new PSU anyway, don't get the same one; only the Cooler Master V series from them is all that good.

Windows loosened up the licensing rules a few years ago. As long as this was a legit Windows to start with and not one that came in a prebuilt, you ought to not need to buy a key again.

 

[Dark Lord of Tech]

Don't be surprised if it's not the PSU.

 

[volharder]

Since you're getting a new PSU anyway, don't get the same one; only the Cooler Master V series from them is all that good.

I might do so, I read the same elsewhere.

Windows loosened up the licensing rules a few years ago. As long as this was a legit Windows to start with and not one that came in a prebuilt, you ought to not need to buy a key again.

I'm afraid it's a prebuilt as I was too lazy this time. I did build & upgrade my previous pc. Its PSU doesn't have all the connectors I need now, so I can't transplant it.
I have also contacted the shop I bought it from. Hopefully they react to my ticket tomorrow.

If I'm on my own and have to partially rebuild my pc then I'm considering transplanting everything to my previous case, the Cooler Master 690 II Advanced, because it is sooo much more spacious then my new one.

(I'm not specifically a Cooler Master fan, I just happen to have a lot of their products)

 

[DSzymborski]

I might do so, I read the same elsewhere.


I'm afraid it's a prebuilt as I was too lazy this time. I did build & upgrade my previous pc. Its PSU doesn't have all the connectors I need now, so I can't transplant it.
I have also contacted the shop I bought it from. Hopefully they react to my ticket tomorrow.

If I'm on my own and have to partially rebuild my pc then I'm considering transplanting everything to my previous case, the Cooler Master 690 II Advanced, because it is sooo much more spacious then my new one.

(I'm not specifically a Cooler Master fan, I just happen to have a lot of their products)

It might still work. Looks like a lot of aftermarket parts, so it's quite possible it's just a regular ol' Windows in there.

 

[volharder]

I personally don't think it's the PSU.

update: SOLVED

Replaced the PSU, problem remained.
Replaced the motherboard, problem now solved. So you were right.

Also in hindsight, the problem may not be me touching the ledstrip, but accidentily letting it (the copper parts of it) touch something on the motherboard. This is guessing though.