Asus ESC700 G2 - Manual (Page 32)

Chapter 2: Hardware setup 2-14
5. With the HDD label side up, carefully
insert the drive into the 3.5-inch bay
and push the drive into the bay until
its screw holes align with the holes on
the drive bay.
6. Swing back the HDD cage.
7. Push in the bay locks to secure the
hard disk drive.
8. Connect a 7-pin SATA cable (from the
motherboard SATA port) and a 15-pin
power plug (from the power supply unit)
to the back connectors of the hard disk
drive.
Use either the 15-pin SATA power connector OR the legacy 4-pin power
connector. DO NOT use both to prevent damage to components and to keep
the system from becoming unstable.