Oh dear Chitty. A jumper works well for on off, the errno5 is because of the uEFI virus added to all bios versions these days (windows needs it). You need a mother board that allows you to disable that bugger. A 'Legacy' option.
Yes rigs are addicting. My friends all laughed when I was burning 4500 per month in 'luz' here in Buenos Aires for only 3 to 6 dollars per day (1 to 2 bitcoins per day ). That was many years ago and now, well. It's not $3 to $6 anymore.
Fun stuff anyways. Best of luck!
Hey, thanks a lot! I will try the legacy option, need to get rid off windows as soon as possible! lol.
Un saludo!!
Depending on what motherboard/bios you have...
You could shrink your windows hard disk, then restart and go to the bios - select "Legacy" or "Legacy first" (over uEFI)
Insert any linux boot CD or USB and you will have a free portion that Linux can be installed to (the space you opened up when shrinking).
If it works, then changing that one option in the bios would have the system booting to Windows or Linux based on uEFI or Legacy.
Tambien tengo risers y muchas placas GPU que quedan si estas en buenos aires. Te los vendo.