Dell PowerEdge R740xd2 EMC Installation and Service Manual - Page 84

Removing the drive bay 1 backplane

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Figure 59. 12 x 3.5-inch drive backplane 1. Power connector (J_BP_PWR1) 3. SAS/SATA cable connector (BP SAS A2) 5. SAS/SATA cable connector (BP SAS B0) 7. Intrusion switch cable connector 2. SAS/SATA cable connector (BP SAS A1) 4. Signal connector (J_BP_SIG1) 6. SAS/SATA cable connector(BP SAS A0) Figure 60. 2 x 3.5-inch drive backplane (rear) 1. Power connector (J_BP_PWR) 2. Signal connector (J_BP_SIG) 3. SAS cable connector (J_SAS_A) Removing the drive bay 1 backplane Prerequisites CAUTION: To prevent damage to the drives and backplane, remove the drives from the system before removing the backplane. CAUTION: Note the number of each drive and temporarily label them before you remove the drive so that you can replace them in the same location. NOTE: Ensure that the drive bay is fully open to access the backplane. 1. Follow the safety guidelines listed in Safety instructions. 2. Follow the procedure listed in Before working inside your system. 3. If installed, remove front bezel. 4. Remove all the drives from the drive slots from bay 1. 5. Open the drive bays. 6. Remove the drive bay 1 bracket. 7. Remove the bay intrusion switch. 8. Disconnect all the cables from the backplane. 84 Installing and removing system components

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Figure 59. 12 x 3.5-inch drive backplane
1.
Power connector (J_BP_PWR1)
2.
SAS/SATA cable connector (BP SAS A1)
3.
SAS/SATA cable connector (BP SAS A2)
4.
Signal connector (J_BP_SIG1)
5.
SAS/SATA cable connector (BP SAS B0)
6.
SAS/SATA cable connector(BP SAS A0)
7.
Intrusion switch cable connector
Figure 60. 2 x 3.5-inch drive backplane (rear)
1.
Power connector (J_BP_PWR)
2.
Signal connector (J_BP_SIG)
3.
SAS cable connector (J_SAS_A)
Removing the drive bay 1 backplane
Prerequisites
CAUTION:
To prevent damage to the drives and backplane, remove the drives from the system before removing the
backplane.
CAUTION:
Note the number of each drive and temporarily label them before you remove the drive so that you can
replace them in the same location.
NOTE:
Ensure that the drive bay is fully open to access the backplane.
1.
Follow the safety guidelines listed in
Safety instructions
.
2.
Follow the procedure listed in
Before working inside your system
.
3.
If installed,
remove front bezel
.
4.
Remove all the drives
from the drive slots from bay 1.
5.
Open the drive bays.
6.
Remove the drive bay 1 bracket.
7.
Remove the bay intrusion switch.
8.
Disconnect all the cables from the backplane.
84
Installing and removing system components