3 PCs stopped working after move to new apartment

[brisk stag]

Hi all. I have 3 different desktop PCs that stopped working after I moved to a new apartment. 2 of them are fairly beefy machines (around 850 watt power supply) and the third is a little lighter. The first 2 have dedicated graphics cards (3080 and 4080) and the third doesn't. The first 2 are relatively new computers built within the past 2 years with new parts. The third is used I got from a friend's old company and I'm not entirely sure what's in it, though it's not very old. Also at no point did I blow a fuse and I should be well under the wattage for that fuse.

It is worth mentioning that I have a 4th PC similar to the weaker third one that is working in the new apartment.

I had assumed it wasn't the computers that were broken since I found it hard to believe all 3 PCs broke. I broke them in my car myself (no movers), was fairly careful with them, and the whole trip is only a few blocks away

I tried to use 2 of the computers at my parents house where they had worked previously but now they seem to be broken.

So now I'm unsure what to do. I've done a little research and it's possible my new apartment has "dirty" power that's causing the issue. Though it's also possible that something got loose during the move. I would try to reassemble parts and test in my apartment but I'm nervous that maybe turning it on in that apartment is what broke them? Is that possible? I saw that newer power supplies should be able to handle dirty power but I'm just wondering if there's anything else I should test?

[acoustic wing]

the "dirty" power is a very likely reason, if it's possible i do recommend buying a new power supply that can handle it and if possible try using a surge protector. Really sorry this happened, I hope this can get fixed soon!

did you hit any speedbumps or anything during the trip? because if so, i would do a triple check on all three PCs to make absolute sure nothing came loose

[brisk stag]

Thanks for the response!
Do you think it's likely that the old power supplies broke? If not then have a UPS would be cheaper? I have surge protectors so that's not an issue

No speed bumps that I can remember but I'll triple check the PCs anyway

Do you think it's safe to plug it into my apartment? Or could it cause damage?

[brisk stag]

Also since this may be useful, here's the parts list for the 2 PCs I built
https://pcpartpicker.com/list/BnPpC6
https://pcpartpicker.com/list/JW3xN6 (I was mistaken before, it's a 4070 super not 4080)

[acoustic wing]

It should be safe to plug into your apartment (through a surge protector would be the best bet- seeing as you already have a few) but I would try a new power supply and see if that changes anything. does your mobo have any power indicators or debug leds?

[acoustic wing]

Try using a power supply from one of the non-working PCs in one of the working ones. If the working pc doesn't turn on, it is a PSU problem and you should get a new one, if it does still work there is a problem with one of the components like the GPU etc

[brisk stag]

That's a good idea I'll give that a shot
Plus I could try the reverse also (the working PSU in the bin working computer). At least the third PC should be fine with that power supply

[brisk stag]

It's very hard for me to see underneath the heat sync but there is a reddish orange light

[acoustic wing]

What board do you have in the PC with the light?

if it's blinking, there's a problem with the PSU, a solid orange light means there's a problem with the motherboard, while a blinking orange light means there's something wrong with the power supply

[brisk stag]

Sorry for the delay! I had to get back to my apartment from the weekend
I just tried the PC with the blinking light in a surge protector. I was going to try reseating the CPU. I did a test turn on before I did and it worked! I'm not sure what was different
I guess maybe because it was a different outlet? I tried in 3 others so I thought that wasn't it but maybe there was an issue with all 3? Though I used an outlet I used before by my parents so I'm not really sure...

Something just came up but I'm going to try the other PCs through this surge protector
I'll keep you posted!

[brisk stag]

I wrote that too early! It just turned on it just took ~5 min
Sorry for all the questions! I guess it's just the outlets? In any case the computers seem to be fine (I'm not sure what happened by my parents)
I may have to get an electrician if it's the outlets