BIOS won't show up once flashing is complete, no screen appears.
BIOS won't show up once flashing is complete, no screen appears.
I possess a Z690-A DDR4 motherboard that initially started up properly, but I detected an old BIOS version. I updated it using the latest BIOS from MSI’s website. Now my system powers on with lights and fans active, yet there’s no display. I attempted to re-flash via the I/O connector flash button using a USB drive, following the instructions carefully—it worked successfully. I also reset the CMOS by shorting the JBAT and removing the battery (no reset option available), unplugged everything, reconnected, removed all but one RAM stick, and connected the HDMI to both the motherboard and GPU while testing. Despite these efforts, I’m unsure what’s missing. The debug LEDs on the board are normal and not flashing. My monitor functions correctly. To confirm, this was a brand-new build; I managed to boot into Windows but couldn’t connect to the internet, and driver updates didn’t help. Initially, I tried updating the BIOS through the BIOS menu, then used the flash button on the back of the I/O connectors for a successful reflash. Specifics: board model MSI Pro Z690-A DDR4, GPU EVGA RTX 3080 12Gb, CPU Intel i7-12700k, RAM G.Skills Ripjaws V 32GB DDR4 (2x16GB), 3600GB SSD, Samsung 970 EVO Plus 2TB M.2 NVMe, OS Windows 10 Home, power supply EVGA SuperNOVA 850G+ 850W.
Did you verify the BIOS matched the correct motherboard version? Sometimes MSI and other makers offer boards with various revisions, leading to different BIOS updates. If you installed BIOS Rev. 1.0 but use a Rev 2.0 board, it might not be compatible. Check if your board or its packaging displays a revision number—like REV. 1.xx or 2.xx—on the device or box.
The provided URL leads to Microsoft's support documentation for the Z690 motherboard, not a revision number. I won't be able to access details from that page unless you share the specific information you're looking for. When you get home, you can check the site directly for any revisions mentioned.
The latest version doesn’t seem to differ from what you had, so it should be accurate. Did you simply switch to the newest release or applied changes gradually? Sometimes updating abruptly can cause problems, though warnings often appear instead. You might attempt restoring the previous version before the update and check if it functions normally again.
I experienced a similar issue on my MSI Z690 Carbon Wi-Fi after updating to the latest BIOS (07/2022) for 13th generation support and memory compatibility. Once the update finished completely, the system shut down instantly without starting or powering up. I had to flash the BIOS using the USB drive in the designated USB 3.0 port, trying various sticks before finding one that worked. The fans and LED display lit up immediately after the flashback. Before this, the latest BIOS wouldn't even get the system running.