Lenovo ThinkCentre M70e Hardware Maintenance Manual (HMM) for ThinkCentre M70e - Page 79

0829,0832, 0835, 0842, 0844, 0846, 0848, 0851, and 4089.)" on page 67 for instructions on how to install or replace internal drives for your computer. Figure 5 "Drive bay locations" on page 71 shows the locations of the drive bays in your computer. Figure 5. Drive bay locations 1 Bay 1 - Optical drive bay (with an optical drive installed) 2 Bay 2 - Slim card reader drive bay 3 Bay 3 - Primary SATA hard disk drive bay (with a 3.5-inch SATA hard disk drive installed) 4 Bay 4 - Secondary SATA hard disk drive bay Removing the computer cover Attention Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the ThinkCentre Safety and Warranty Guide that came with your computer. To obtain a copy of the ThinkCentre Safety and Warranty Guide, go to: http://www.lenovo.com/support This section provides instructions on how to remove the computer cover. CAUTION: Turn off the computer and wait three to five minutes to let the computer cool before removing the computer cover. To remove the computer cover, do the following: 1. Remove all media from the drives. Then, turn off all attached devices and the computer. 2. Disconnect all power cords from electrical outlets. Chapter 8. Replacing FRUs (Machine Types: 0806, 0810, 0821, 0823, 0827, 0829,0832, 0835, 0842, 0844, 0846, 0848, 0851, and 4089.) 71