This machine appears to be fully working. If the machine has been disconnected from power, Iit does give a check sum error, but this can be worked around and the machine boots. Once the machine has been booted and the power left on, it boots straight away in under 1 minute. I have tested it as per the video. I can’t imagine the battery works or lasts so expect that to have failed. It up surprisingly quickly for a 30-year-old computer. The mouse and buttons work. Comes in an original bag with charger and power cord. Item will be well packaged for shipping.
eBay