I have built a new PC that does not boot at all when the keyboard or mouse are connected, it won't even boot into the BIOS - absolutely no display at all.
Specs
MB: Gigabyte AORUS Z790 ELITE AX
CPU: Intel Core i7-14700
RAM: TIMETEC DDR5 unbuffered 2x 32 GB (slot A2 & B2 )
Power supply: MSI MAG A550BN
Logitech K120 keyboard
Monitor: MSI Pro MP2412
SSD: 1TB WD Blue SA510
No expansion cards so far.
I use Linux Mint 22 only.
BIOS version:
When the keyboard is connected, the boot process starts and halts suddenly before any signal has been sent to the monitor.
On the MB, there are 4 yellow status LEDs that indicate errors (CPU, DRAM, VGA, BOOT).
The BOOT LED remains on.
With the keyboard and mouse disconnected, the system seems to boot normally, however, in this case, I do not see the AORUS welcome screen and cannot enter BIOS. The first thing the monitor displays is the Linux Mint welcome screen. After booting, I can connect the keyboard and mouse and everything works normally.
I can reboot with the mouse and keyboard connected, and this works normally, too. I see the AORUS welcome screen then.
Another way to boot the PC with a keyboard connected is to reset the CMOS values to factory default. On the MB near the F_PANEL, two pins can be short-circuited
with a screwdriver. Having this done, I can boot and enter BIOS. After having switched the power OFF, the problem returns.
What is here the problem? Except having disabled secure boot, I did not change anything actively in BIOS.
Remark: I have some doubts regarding the power supply. It comes with a 24 pin and only one single 8 pin 12V connector for the MB (there are several PCIe and SATA connectors). The mainboard, however, (among 24 pin) allows to connect 2 equal 8 pin 12V connectors.
Specs
MB: Gigabyte AORUS Z790 ELITE AX
CPU: Intel Core i7-14700
RAM: TIMETEC DDR5 unbuffered 2x 32 GB (slot A2 & B2 )
Power supply: MSI MAG A550BN
Logitech K120 keyboard
Monitor: MSI Pro MP2412
SSD: 1TB WD Blue SA510
No expansion cards so far.
I use Linux Mint 22 only.
BIOS version:
When the keyboard is connected, the boot process starts and halts suddenly before any signal has been sent to the monitor.
On the MB, there are 4 yellow status LEDs that indicate errors (CPU, DRAM, VGA, BOOT).
The BOOT LED remains on.
With the keyboard and mouse disconnected, the system seems to boot normally, however, in this case, I do not see the AORUS welcome screen and cannot enter BIOS. The first thing the monitor displays is the Linux Mint welcome screen. After booting, I can connect the keyboard and mouse and everything works normally.
I can reboot with the mouse and keyboard connected, and this works normally, too. I see the AORUS welcome screen then.
Another way to boot the PC with a keyboard connected is to reset the CMOS values to factory default. On the MB near the F_PANEL, two pins can be short-circuited
with a screwdriver. Having this done, I can boot and enter BIOS. After having switched the power OFF, the problem returns.
What is here the problem? Except having disabled secure boot, I did not change anything actively in BIOS.
Remark: I have some doubts regarding the power supply. It comes with a 24 pin and only one single 8 pin 12V connector for the MB (there are several PCIe and SATA connectors). The mainboard, however, (among 24 pin) allows to connect 2 equal 8 pin 12V connectors.