HDD is is connected to one of two Sata ports on the motherboard and boots perfectly from it - use three different cloning programs once each, Macrium, Acronis and Easeus to clone the HDD onto SSD via Usb Sata adaptor.
SSD is recognised and is identical to HDD in Disk Manager.
Disconnected HDD and connected SSD using same leads from the HDD.
Computer wont boot and cant access bios - Pressing Esc when booting results in a screen displaying a summary of the computer's components but the blue selection screen (from which to go to bios, select boot device etc) will not pop up and the computer freezes at this point.
When the original HDD is connected the system boots up normally and the blue selection menu (Esc at boot) will show and work.
Giving me a right headache - this is - any clues to what is wrong?
Have looked through HP forums this article seems to fit the bill -
https://h30434.www3.hp.com/t5/Desktop-Boot-and-Lockup/HP-blocking-SSD-upgrades-with-newer-systems-and-biosversions/td-p/6626972 -
or did i miss something obvious?