Just upgraded my computer by getting a new motherboard (B450 Tomahawk Max), a new CPU (Ryzen 5 2600), and new RAM (G.SKILL Flare X Series 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 3200 (F4-3200C14D-16GFX)). I kept my previous GPU which is an RX 580. When I started it up, the screen had nothing on it but a white underscore looking thing towards the upper left of the screen. It wasn't flashing. The EZ Debug light stopped on VGA for the GPU having a problem. I tried using another GPU and it did the same thing so I returned the motherboard and got another of the same one. I just got it today and put it back together thinking it was the GPU slots on the other motherboard that were broken. I just put it back together and it did the exact same thing. White underscore on screen and debug light stopped on VGA. I also tried using different RAM. Please help.
Motherboard: MSI B450 Tomahawk Max
CPU: Ryzen 5 2600
Ram: G.SKILL Flare X Series 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 3200 (PC4 25600) AMD X370 / B350 Memory (Desktop Memory) Model F4-3200C14D-16GFX
GPU: XFX Radeon RX 580 4gb
750 watt power supply.
Motherboard: MSI B450 Tomahawk Max
CPU: Ryzen 5 2600
Ram: G.SKILL Flare X Series 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 3200 (PC4 25600) AMD X370 / B350 Memory (Desktop Memory) Model F4-3200C14D-16GFX
GPU: XFX Radeon RX 580 4gb
750 watt power supply.