well, havent seen a hard drive with both EIDE annd SATA connections on... either way, just connect one if that is the case. Would confuse the system at a guess.
The one your talkign about is the normal 4 pinmolex power cable..DO NOT connect BOTH power cables! Just connect the small red cable (sata lead) and either of the power cables, NOT both.
yep, id say so also, if works on one drive but not the other. Run a Diagnostice on the drive, depending on the make, use the manufactures boot up diags.
Its a Bluetooth adapter (for my fone software). Its a USB PCI card. It has 2 external ports and 1 internal, so I hide the bluetooth dongle away inside Cheers, I do like to look after my rig (it gets air dusted every so often as well, lol)