I'm guessing about 11 volts

Mike said it was 10. Given that a healthy lead-acid battery driven by an alternator should be giving a total voltage of around 14 while the engine is running, 10V does sound like a big drop. However...

If your system voltage is going that low, that sure would imply a problem

Ahhh - but this is a "Prince of Darkness" special - a Mini. These things have ridiculously small batteries, so even when new, drops like this happen regularly. Imagine:

- cold day, cold start (-10 C, no-where near as bad as your neck of the woods!)
- lights on
- rear window element on
- blower on

You then drive to the first set of traffic lights on Red, foot on the brakes and the empeg throws a wobbly. I'm used to this happening now, and the expected behaviour is for the interrupt handler to kick in and do the screen blank routine. However, since 1.02 hit the box, it now:

- stutters
- the graphics lock
- the music stops

and then BANG! After about 5 seconds it re-boots. Definitely odd behaviour in my book!

One of the few remaining Mk1 owners... #00015