F5F Stay Refreshed Hardware Desktop The existing working device is no longer functioning after being installed in a different scenario.

The existing working device is no longer functioning after being installed in a different scenario.

The existing working device is no longer functioning after being installed in a different scenario.

M
MMAZZA
Member
162
01-07-2026, 08:54 PM
#1
Good day.
I decided to replace the PC case, but it isn’t working properly now.
All parts functioned correctly before in the old case, so I’m unsure what went wrong or what to check.

Device specifications are:
Mobo: Gigabyte B450 DS3H Wifi
CPU: Ryzen 5 5600x
GPU: AMD Radeon RX 7800 XT
RAM: 32 GB at 3600 MHz

When I power on the device through the case’s internal connections, two things occur:
The PSU fan starts
The GPU fans begin spinning

The GPU has several red lights that don’t illuminate. These were present originally.
The motherboard is very minimal—no lights, speakers, or screens. I only know it works if other components function.

The CPU is cooled by AMD’s Prism fan; it produces noticeable noise when powered on. That fan is connected to a hub that previously worked.

The display isn’t an issue at the moment—I’m certain it won’t be.

I examined the space between the motherboard and the case backing and didn’t find any metal pieces that shouldn’t be there, so I don’t think there’s a short circuit.

When I disconnect the CPU power headers and restart the device, only the PSU activates. Reconnecting the CPU headers makes the GPU fans spin again. This seems unusual but might be normal, especially since I’m new to this setup.

I suspect something went wrong somewhere, and I’m not sure where to start troubleshooting.
Would anyone with similar experience help me figure out what I did incorrectly?
M
MMAZZA
01-07-2026, 08:54 PM #1

Good day.
I decided to replace the PC case, but it isn’t working properly now.
All parts functioned correctly before in the old case, so I’m unsure what went wrong or what to check.

Device specifications are:
Mobo: Gigabyte B450 DS3H Wifi
CPU: Ryzen 5 5600x
GPU: AMD Radeon RX 7800 XT
RAM: 32 GB at 3600 MHz

When I power on the device through the case’s internal connections, two things occur:
The PSU fan starts
The GPU fans begin spinning

The GPU has several red lights that don’t illuminate. These were present originally.
The motherboard is very minimal—no lights, speakers, or screens. I only know it works if other components function.

The CPU is cooled by AMD’s Prism fan; it produces noticeable noise when powered on. That fan is connected to a hub that previously worked.

The display isn’t an issue at the moment—I’m certain it won’t be.

I examined the space between the motherboard and the case backing and didn’t find any metal pieces that shouldn’t be there, so I don’t think there’s a short circuit.

When I disconnect the CPU power headers and restart the device, only the PSU activates. Reconnecting the CPU headers makes the GPU fans spin again. This seems unusual but might be normal, especially since I’m new to this setup.

I suspect something went wrong somewhere, and I’m not sure where to start troubleshooting.
Would anyone with similar experience help me figure out what I did incorrectly?

O
OverlordCoby
Member
169
01-07-2026, 08:54 PM
#2
I solved the problem but forgot to insert something. I'm a fool.
O
OverlordCoby
01-07-2026, 08:54 PM #2

I solved the problem but forgot to insert something. I'm a fool.