PC doesn't POST

[BlueElixir]

Hello,

I got a request from a family friend to reinstall windows on their computer. I went to their place and found out that it would take too long to reinstall, so I brought it back home. At their place everything was working just fine. After I got back home with the PC, I plugged it in and tried turning it on. It turned on but didn't POST. The monitors only showed a "no signal" sign. The PC didn't get damaged in any way when moving it - no bumps, no contact with liquids, nothing else I could think of that would cause damage.

 

Steps I already took:

- Basically everything mentioned here

- Checked for physical damage inside the case
- Checked every cable to see if it could've got loose, but it wasn't the case

- Re-seated the ram, checked both slots

- Tried using both on-board GPU and dedicated GPU for video output

- Tried a different GPU

- Tried 3 different monitors (all working perfectly with my own PC)

- Tried multiple cables (confirmed working on all 3 monitors with my own PC)

- Tried turning it on with everything but the CPU and RAM disconnected (video output was on-board graphics)

 

Specs (old, but was working fine a week or so ago):

PSU - MICASE SR450 450W (confirmed working, steps found here)

Motherboard - ASRock G41M-VS3

GPU - Radeon HD 4770 (confirmed working)

CPU - don't remember, can't check

RAM - 1x Kingston 99U5471-012.A00LF 4GB

HDD - 1x 120GB don't remember company (confirmed working)

 

 

I want to mention that the PC was working perfectly before it was suddenly stuck in a blue-screen loop (that is the reason I was asked to reinstall windows). The blue screen situation has happened before and I have reinstalled windows the same way, however that time everything worked just fine for a month or two and now it doesn't POST before even reinstalling windows.

 

Are there any other steps I could try to resolve this? (I am not really good at the whole computers thing, so please forgive me if I did do something wrong)

 

Thanks in advance.