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