irix wrote:The middle switch makes the monitor image go funky, so overscan could be it, although my monitor doesn't seem to support that mode.
It will -- overscan needs a software patch applied to make it work...
Why would it need a RTC (and so many wires attached)?
The ST (by default) doesn't have a clock so you need to either a) manual enter the date/time every time, or b) deal with the date/time being wrong. Adding an RTC (I had a forget-me-clock 2 cartridge years ago) automatically sets the clock at boot (again, via a small software program added to the boot sequence). The number of wires make sense (+5v, GND, a few data wires, DTACK and battery) for a clock.
The ST does boot, switching the other switch changes nothing. The disk drive seems to be broken (or stuck).
It takes ages to boot (with or without disk inserted), which I guess is typical ST when no disk is inserted (it's been a while for me in ST land). The About screen doesn't say a TOS version.
Yep -- the ST will take about 40s to boot if there's no disk in the floppy. Inserting a blank formatted disk, will make it boot much faster.
How can I check the amount of memory? And any software available to check the PC board?
The PC-Speed software is available to download -- on the Driver Collection ISO available from http://dev-docs.atariforge.org
. There's plenty of memory test software about -- Try SysInfo at https://sites.google.com/site/stessenti ... ls/sysinfo