yes to thermal paste, and yes checking all connections now
the beeping stopped and it now display the blue lead in page offering f10 system info and f11 system restore but goes no further, and upon pressing these f keys I get nothing, at least the beeps stopped, and now checking the rest of the connections
after rebooting to last known good configuration (which usually fails)
My computer has risen from the ashes like the Phoenix
I am so very grateful for everyone's help. Without this forum, I feel many of my seemingly impossible tasks would end up an hour phonecall to a tech help phone line and £50 charge at whatever the going rate is now.
Just when you think you know everything about your computer, something new pops up and takes you from an advanced user right back down to noob :O