Desperate PC DIYer appeals for help after spending $20,000 on a build that doesn't work despite returning multiple parts – misfortune began with a failed BIOS update attempt

Asus Pro WS WRX90E-SAGE SE motherboard .

A 3D graphics professional has been having great difficulty with a pricey DIY PC build. Redditor joel_motion’s purportedly $20,000 PC includes potent performance components such as a $4,000 AMD Ryzen Threadripper Pro 7975WX, twin ~$2,500 Zotac RTX 4090 graphics cards, and luxuriant amounts of RAM (512GB). However, after a BIOS update went wrong, the Redditor hasn’t been able to boot the system successfully, halting at Q-Code 92. Despite RMAing multiple suspected components, including the motherboard, this error persists.

The tricky PC system (Image credit: Redditor joel_motion)