Well the solution to this is hasn't been to change the HDD (although this was done), not to change the power supply (although that was done), not to upgrade the machine to am i9, no it was... Just change the NVM battery, a CR3032 on the motherboard, and now all is well and the machine boots every time!
We have a 7010 that has odd boot issues. Often you boot, you get the Dell logo, the Win 10 logo flashes up and then it powers down. Then on a second attempt you get Dell logo, Win 10 logo and then the 'spinning ball bearings'. Once you see the ball bearings, you know it's going to start. The start and promptly stop can occur once or half a dozen times, but so far at least, it does eventually sort itself out and start. So far I have... On the BIOS side... Anyone any ideas on this odd 'will start eventually' behaviour, and given all checks pass, quite what can I try to identify and resolve this issue. Kind of concerning to have a machine become so unreliable. Thanks for any thoughts
Intermittant boot issues with Optiplex 7010