Ms-7826 Motherboard Manual -

(Reminder: at the end of this response I will provide related search term suggestions.)

The Power LED and the HDD LED pins are polarity sensitive. If the LEDs don't work then switch the wires between the two pins. HP Support Community ms-7826 motherboard manual

Do use a generic MSI BIOS from msi.com. The board has an HP-customized BIOS. Only use BIOS updates from HP's support page for your exact PC model, or you may brick the board. (Reminder: at the end of this response I

Identify your full HP PC model (e.g., from a sticker on the chassis or by running wmic baseboard get product in Windows). Then visit support.hp.com , enter that model, and download the “Maintenance and Service Guide” (not the user guide). The board has an HP-customized BIOS

The BIOS on the MS-7826 is a standard Aptio AMI UEFI BIOS, but the OEMs have hidden advanced tabs. The reveals how to unlock them.

: Go to the MSI support page ( https://www.msi.com/support ), and look for the "Motherboard" section. You can search for your motherboard model (MS-7826) in the search bar.