On 26/01/2016 23:08, Charlie Pridham wrote:
On 26/01/2016 20:44, Nick Maclaren wrote:


If you have replaced the hard drive, motherboard and processor,
then the power supply is by far the most likely scenario. The
trouble is that the symptoms can arise from almost anything,
including peripheral boards if you have them, because of the way
modern boot software is written.


Regards,
Nick Maclaren.


I do have a graphics card, so If the power supply replacement doesn't
sort it I suspect I can run without it as the main board appears to have
a connection for the monitor cable.

Could something like a card reader connected to the USB on the board
also cause it (I have one but no longer need it so it could be removed)

Thanks for all the suggestions and input, I have managed to sort out one
machine by re installing the windows system (not easy to get hold of the
operating system on a disk!)

Anyway as advised, there was nothing wrong with any of the hardware I
was replacing to "fix the problem" so I have enough bits left over to
build another machine which since my sons caught fire while all this was
happening should find a new home as soon as I get around to assembling it.

--
Charlie Pridham, Gardening in Cornwall
www.roselandhouse.co.uk
National collections of Clematis viticella & Lapageria rosea