DECstation 316

Hi, (This isn't really on-topic. If anyone knows of a place or mailing list which covers obsolete but not classic computers, please let me know.) Today I picked up a DECstation 316. Since I'm in the UK, this European model may or may not be the same as the DECstation 316 machine which was sold in the US. This is a 386SX-based PC, presumably running at 16MHz. Useful to me because it has 4 ISA slots. The machine came with 5MB RAM and an IBM 171MB disk drive, probably added as an upgrade after purchase. This PC seems to be a rebadged Olivetti; motherboard, PSU and BIOS code say Olivetti. A label on the rear of the unit says Model:PC 651-A3 CMOS battery is almost dead, but the machine seems to work okay. Though when I first tried it the Base unit system test (part of the power-on tests) reported an error. Now it doesn't. There is no reset button on this machine, and it came with a somewhat nonstandard DEC LK250 keyboard. Things I would like to find out: - Does anyone have setup disks for this machine? I downloaded a DECstation 316 setup disk from the Digital web site, but the SPEED316.COM program on that reports "SPEED316 ONLY WORKS ON A DECstation 316." (Which is why I suspect the American machine of the same name is different.) - There is no predefined setting in the BIOS setup menu for the 171MB IBM hard disk (which is IBM-H3171-A2 P/N: 84G3902). There doesn't seem to be a way to set user-defined drive type. What can I do about this? - Does anyone have docs for this machine? There is one jumper and a 26-way IDC connector on the motherboard. What are these for? How is the drive cage supposed to be removed? I can't see any way to do this. -- Mark