Motherboard Error Code D/04

[Nigel Thornberry11]

So recently I have installed a Grid +V2 to control my case fans. However, I am now having issues turning on my PC. The only way I have been able to get it running is funnily enough to remove all my USB devices as well as Ethernet, power on and re-plug all of them in. If I don't do this the PC doesn't post and I see infinite black screens.

When the PC does boot, the (MSI) motherboard displays the error either 04 - Power on South Bridge Initialisation or D4 - PCI Bus Initialisation can't quite distinguish which of the two characters it is.

Either way, is there anyone that could offer some help or insight into this issue.

Thank you.

 

[Lutfij]

When posting a thread of troubleshooting nature, it's customary to include your culprit system's full specs. List them as:
CPU:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:

That being said, can you recall how long this issue has been going on? Did it materialize after populating the Grid+ v2?