First post, by bjwil1991
I am looking for a BIOS, jumper settings, and user manual for a MiTAC IH4077H motherboard.
2x IDE ports (keyed for modern IDE cables)
Floppy port (keyed for modern floppy cables)
2x Serial port headers
Parallel port headers
4x SIMM-72 FPM/EDO sockets (Banks 0-3)
Supports 3.3V, 3.45V, 3.6V and 4V CPUs
FSB support: 25MHz, 33MHz, 40MHz, and 50MHz
2x VLB 32-bit slots
6x ISA 16-bit slots
It had a Ni-Cd battery on it, but I removed it due to the battery leakage causing corrosion. I then since removed a lot of corrosion and cleaned the contact points with contact cleaner and 320 grit sandpaper, along with vinegar to help rid some of the corrosion. The system has a UMC northbridge and southbridge chips and the northbridge has the keyboard controller integrated.
The northbridge is a UMC UM8498F. The board itself is close to the IH4077D, except the CPU socket is rotated 90 degrees, has 2 IDE ports, and the front panel header is labeled as J14 with marking for which one has the functionality (restart, turbo, turbo LED, key lock, and speaker). The other ones are located somewhere for the power LED and HDD LED, but I cannot find information about it.
Pictures of the board: https://imgur.com/a/6x76EzF