M2 SSD is the fastest.
Most reliable is probably an HDD, but in the expected lifetime of a drive an SSD is really just as reliable these days.
But which to use depends on what the drive is being used for? OS, games, data storage? etc etc etc.
I've made the rounds, tend not to get bogged down by a specific platform, although in recent years I have been more directed toward Apple for security reasons.
Sony Ericsson P900 - Old Symbian OS - Restrictive OS just before IOS and Android started hitting the scenes.
HTC Universal - Windows...
You realise that's completely out of date? Other than security issues, you'll have issues with drives larger than 2Tb if they're formatted as MBR. It's a limitation of Windows 7 not being patched properly.
If they make a mess of this one (which is supposed to be more of a service pack rather than new features) then MS are gonna take some heavy flack. It's not just MS though, Apple truly borked their latest updates to both IOS and MacOS, games on release are nothing more than Beta's.... gone are...
If you can't get into the BIOS, it does point to BIOS failure and that hardware reset is the last resort at resurrection. If that's failing then unfortunately the motherboard is toast.
Given the older nature of it, it's not really worth replacing like for like as 1. will be difficult to source...
That sounds like the BIOS is corrupt.
Not a good sign unfortunately.
You can try the following to reset the BIOS via hardware:
If that doesn't work, it does sound like it may have given up the ghost unfortunately.