Known issues:

• DALLAS RTC coin cell empty

The motherboard's Real-Time Clock (RTC) chip contains a coin cell that may have drained, causing the loss of CMOS settings. This can result in an inability to save settings, causing system instability or failure to boot. To fix this, the RTC chip can be replaced with an equivalent or repaired by cutting into it and soldering on a new external coin cell holder. Replacement guides are available at https://github.com/necroware/nwX287 or https://github.com/necroware/nw12887, depending on the actual chip used.

Notes:

Has proprietary DB25 floppy port at the back. Has proprietary floppy connector for the Sony floppy drive used.
Has proprietary DB9 joystick port, analog and digital joysticks supported.
Limited choice for harddisks in bios (no custom type).
Has reset button next to the keyboard connector.
Has ISA riser card option.
Has proprietary expansion slot.
If the Dallas battery is empty, will not boot from harddisk at all.