Problem with accessing BIOS on MSI Z790 device
Problem with accessing BIOS on MSI Z790 device
Hello everyone, the system seems to boot quickly by default but doesn't register keyboard inputs. Everything functioned perfectly before, just needed a quick check of settings. I accidentally cleared the CMOS to test and now the fans are running at full speed again, while RAM speed returns to its standard setting. Windows 11 is operating normally, but I need to adjust the fan control in BIOS to PWM mode so I can stop them from Windows and set XMP for higher speeds. When I go to "Advanced Restart" in Windows and reach UEFI settings, it restarts and checks CPU, RAM, VGA, boot status, and the MSI debug LED. After all tests pass, I get a black screen with fans still active. It takes a long time and I struggle to exit that state. Sometimes after several shutdowns and restarts, I manage to return to Windows, which works fine until I try to access BIOS/UEFI from there—it becomes unstable again. The behavior feels unpredictable, without clear patterns. I've tried both GPU and on-chip graphics with HDMI and display cables, using just one monitor, but it didn't help. Pressing the shift key during restart behaves identically to the Advanced Restart option. Any advice would be greatly appreciated. Thank you! System Info: MB : MAG Z790 TOMAHAWK MAX WIFI (BIOS Ver 7E25vA5 2024-05-08) CPU : Intel 14700K RAM : CORSAIR 64GB Vengeance DDR5 6400 XMP (2 x 32 from one Kit) GPU : NVIDIA GeForce RTX 3090 Ti FE SSD : Samsung 990 PRO 2TB PSU : Seasonic Vertex PX-850 ATX 3.0 CASE : Corsair 5000D Air Flow Cooler : NOCTUA NH-D15S KB : Razer (Connected with USB cable) OS : Windows 11 (23H2) updated
Placing an overly unrealistic character in XTU should instantly redirect you to the BIOS, especially on systems like the MSI Z690.
Interesting! Do you also have the 14th generation with dual sticks of RAM? The quick startup was one of my initial assumptions, but I turned it off in Windows Power Settings. However, it remains enabled in the BIOS, and I can't reach the setting to disable it. Another problem is that modifying hardware—removing or adding a stick—causes the BIOS to revert to its default state, which then triggers fast boot again.
I didn't realize that. I'm going to give it a shot! Appreciate the tip.
Typically, disconnecting your boot drive will launch BIOS and won’t cause a CMOS reset.