Dell PowerEdge R840 EMC Installation and Service Manual - Page 138

System board, Removing system board

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a. GPU air shroud b. Expansion card riser 2 OR a. Expansion card riser 2 b. Non-GPU air shroud 3. Follow the procedure listed in After working inside your system. System board Removing system board Prerequisites CAUTION: If you are using the Trusted Platform Module (TPM) with an encryption key, you may be prompted to create a recovery key during program or system setup. Be sure to create and safely store this recovery key. If you replace this system board, you must supply the recovery key when you restart your system or program before you can access the encrypted data on your drives. CAUTION: Do not attempt to remove the TPM plug-in module from the system board. After the TPM plug-in module is installed, it is cryptographically bound to that specific system board. Any attempt to remove an installed TPM plug-in module breaks the cryptographic binding, and it cannot be reinstalled or installed on another system board. 1. Follow the safety guidelines listed in Safety instructions. 2. Follow the procedure listed in Before working inside your system. 3. Remove the following: a. Non-GPU air shroud or GPU air shroud b. Cooling fan assembly. c. Processor and heat sink module d. Backplane cables connected to the system board e. Power interposer board (PIB). CAUTION: When replacing the system board, disconnect the cables from the system board, but do not disconnect the cables attached to the PIB. f. Expansion card risers g. iDSDM/vFlash card h. Internal USB key, if installed i. USB 3.0 module cable connected to the system board j. Processor blanks, if installed CAUTION: To prevent damage to the processor socket when replacing a faulty system board, ensure that you cover the processor socket with the processor dust cover. k. Network daughter card. l. Drive cage (rear), if installed. Steps 1. Disconnect all cables from the system board. CAUTION: Take care not to damage the system identification button while removing the system board from the system. CAUTION: Do not lift the system board by holding a memory module, processor, or other components. 2. Holding the blue plungers, slide the system board to the front of the system. 3. Incline the system board at an angle, and lift the system board out of the system. 138 Installing and removing system components

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a.
GPU air shroud
b.
Expansion card riser 2
OR
a.
Expansion card riser 2
b.
Non-GPU air shroud
3.
Follow the procedure listed in
After working inside your system
.
System board
Removing system board
Prerequisites
CAUTION:
If you are using the Trusted Platform Module (TPM) with an encryption key, you may be prompted to create
a recovery key during program or system setup. Be sure to create and safely store this recovery key. If you replace this
system board, you must supply the recovery key when you restart your system or program before you can access the
encrypted data on your drives.
CAUTION:
Do not attempt to remove the TPM plug-in module from the system board. After the TPM plug-in module is
installed, it is cryptographically bound to that specific system board. Any attempt to remove an installed TPM plug-in
module breaks the cryptographic binding, and it cannot be reinstalled or installed on another system board.
1.
Follow the safety guidelines listed in
Safety instructions
.
2.
Follow the procedure listed in
Before working inside your system
.
3.
Remove the following:
a.
Non-GPU air shroud
or
GPU air shroud
b.
Cooling fan assembly
.
c.
Processor and heat sink module
d.
Backplane cables
connected to the system board
e.
Power interposer board (PIB)
.
CAUTION:
When replacing the system board, disconnect the cables from the system board, but do not
disconnect the cables attached to the PIB.
f.
Expansion card risers
g.
iDSDM/vFlash card
h.
Internal USB key
, if installed
i.
USB 3.0 module cable
connected to the system board
j.
Processor blanks, if installed
CAUTION:
To prevent damage to the processor socket when replacing a faulty system board, ensure that you
cover the processor socket with the processor dust cover.
k.
Network daughter card
.
l.
Drive cage (rear)
, if installed.
Steps
1.
Disconnect all cables from the system board.
CAUTION:
Take care not to damage the system identification button while removing the system board from the
system.
CAUTION:
Do not lift the system board by holding a memory module, processor, or other components.
2.
Holding the blue plungers, slide the system board to the front of the system.
3.
Incline the system board at an angle, and lift the system board out of the system.
138
Installing and removing system components