[SOLVED] Solid minus sign in upper left side of screen before Bios splashes

[eyevseye]

Hey group, total newbie here, so apologies if this isn't the right forum to ask this question.

Every time I boot up my latest PC build (specs below) There is a black screen with a solid minus (-) mark in the upper left side of the screen not far from center screen. It appears before the Bios spash page. Doesn't really seem to affect computer just curious and seems to slow startup time.

PC build list

Ryzen 7 3700X Matisse 3.6GHz 8-Core AM4 Boxed Processor with Wraith Prism Cooler
X570 Aorus Pro WiFi AMD AM4 ATX Motherboard
Ballistix Gaming 32GB (2 x 16GB) DDR4-3200 PC4-25600 CL16 Dual Channel Desktop Memory Kit BL2K16G32C16U4B- Black
Radeon RX 580 Overclocked Pulse Dual-Fan 8GB GDDR5 PCIe 3.0 Graphics Card
1TB SSD 3D NAND M.2 2280 PCIe NVMe 3.0 x4 Internal Solid State Drive
Lancool II Tempered Glass eATX Full Tower Computer Case - Black
750 Watt 80 Plus Bronze ATX Semi-Modular Power Supply

Thanks again in advance, and appreciate any and all input.

Sean

 

[Colif]

i will have to watch my start-up, it seems normal for Gigabyte Aorus X570 boards
link - I have an X570 elite WIFI.

Maybe a bios update will remove it.