There are three.
1. IDE
2. Sata
3. SCSI
For today's hard drives, the hard drive controller is firmware on a circuit board on or inside the drive housing.
The hard drive should be on the bottom connector and all you other drives on the top connectors. Thats how mines connected!!!!!!!! :-)
Where to buy Motorola ml900 hard drive
It connects the drive to the system power supply.
in the back
An IDE connector is used to connect a CD-ROM drive or hard drive to a motherboard, with a long and flat ribbon cable.
The SATA connector cable, or whatever connector cable you have from the drive to the motherboard.
the controller
The red wire always attaches to pin 1 of both the hard drive and the controller or motherboard. The red line is usually closer to the power connector. However, older hard drives did not follow this convention. There might not even be a specification for this. To be sure, look closely at the hard drive for a distinguishing mark on one end of the connector, such as a "1" or triangle indicating which end the red line should be.
what connector connects to the Intel p65 express
yes adjust the jumper at the back of the drive. it's a white block. it between the interface connector and power connector. you also want to set it aswell in the bios.
There is a a PCI card that acts as a SATA hard drive. they call it a controller card