Not sure if the answer to this is spray a little WD40 into the carburettors.
When I boot the PC from cold in the morning I get "Primary Master Hard Disk Error" during boot up. The strange thing is that after 20 mins or so of reboots or leaving the PC switched on at the boot up screen it will restart fine. I can't see any issues with the BIOS and the PC hardware is unchanged in the last 5 years. This issue has been consistent now for 4 months. Once working there are no noticeable issues with the PC.
Any thoughts on what needs to warm/charge up before I replace the HDD and discover the problem has not gone away?