|If the drive isn't showing in Device Manager or Disk Management then you won't be able to use recovery software. Verify the problem isn't the USB port by trying a known working port.|
When the drive was giving you problems but showed in Device Manager, where in Device Manager was it listed? Under USB devices or hard drives? If under USB devices then it was the enclosure that was being seen.
In that case, you may be able to access the drive by removing it and connecting directly to the computer, or by use of other USB connection hardware. Keep in mind there are capacity restrictions on older motherboards and you also need to deal with the issue of connecting the drive to the computer.