Ok then - Mac Plus, it boots, or rather it can boot all the way to the desktop and it can sit there for a while - usually less than ten mins - then it re-boots. it generally gets to the desktop when it is first switched on. but not always.

now then - if i leave it to re-boot then it may or may not get to the desktop before rebooting again. sometimes the chimes dont finish before it tries to reboot again.

thats the problem - observations and stuff so far.

i have washed the board, i have swapped ram about i have looked for dodgy solder joints on the video board and around the power connector.

one other thing - when the machine is first switched on, it takes, what seems an age to start the boot process, it just sits there with a grey screen. in my opinion it sits there way too long before trying to boot. that suggests something to me, but what?

any help?

cheers