In article <71416e5d4e.steve@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>, [Snip] > All of which is irrelevant if we're quoting "5.06V on a spare connector", > as seems to be the standard test around here. That's why I think the test > is totally meaningless. It may always be true on an unexpanded Iyonix, > but I would expect it to change when a second hard disc or similar is > fitted (I suppose I could check that, now I've got a second disc fitted; > if I get chance, I'll try to remember when I've got the current deadlines > out of the way and I can 'afford' to break the machine). When my PSU failed with its "two state situation", I simply measured the voltage. Ideally, I would have put a 'scope across the power rails to see if there was anything else wrong. I suspect that there was*, but not many people have a scope at home, so the voltage test is as good a test as there is. *probably serious ripple leading to a lower RMS reading. -- From KT24 - in "Leafy Surrey" Using a RISC OS computer running v5.11 --- To alter your preferences or leave the group, visit //www.freelists.org/list/iyonix-support Other info via //www.freelists.org/webpage/iyonix-support