I removed the usb plug from dvi-d to vga adapter and the cpu fan stopped!!! Lovely, now the rest of the test. This morning, before going to work, I switch on my pc and presto, it power up fine, post done and worked fine.
I thought, well...there goes my old and faithful samsung flat screen crt 17'', since with out the usb plug, the adapter should not work.
I hit the power button of the screen and just come up displaying the image fine and normal.
What the deuce?
Hope things now return to normal!
Reece, thanks for your help and mention an usb power connection!