This is an old revision of the document!
UX/UG/UR models are generally a pain in the ass to maintain. As soon as you import one change the capacitors in the CRT PSU card and Computer PSU card or you'll be in a world of pain. The models with -40 or -80 at the end have an internal SCSI hard drive that is dead by now of course. The U* models have a removable plate on the right side to insert 1 RAM card. Stock they all come with 2MB of RAM and you may add a maximum of 8MB ram card for a total of 10MB.
If adding a hard drive the SCSI hard drive ID must be set to 1 or higher. There is no SCSI ID 0 available in U* BIOS.
UX model. 386SX at 16mhz
g
UG Model. Notice the FAST mode light on the front. It also says FM TOWNS II on CD rom drive. 386SX at 20mhz
UR Model Notice the FAST mode light on the front and say UR on disc drive. Has 486SX
