How to Replace System Board for PowerEdge R760

Ensure safety. Replace the system board, handling memory modules with care. Reinstall side wall bracket, cooling fan, air shroud, and check for proper alignment.

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.

Follow the safety guidelines listed in the Safety instructions.
Power off the system and all attached peripherals.
Disconnect the system from the electrical outlet and disconnect the peripherals.
If applicable, remove the system from the rack.
Remove the system cover.

Removing Air shroud:
Hold the edges of the air shroud, and lift the air shroud out of the system.

Removing Cooling fan cage assembly:
Lift the blue release levers to unlock the cooling fan cage assembly from the system.
Hold the release levers, and lift the cooling fan cage assembly away from the system.

Removing Side wall bracket:
Press the blue side tabs to release the side wall cable holder.
NOTE: Move the cables out of the side wall cable holder.
Press the center tab to release the bracket from the chassis, and lift it away from the system.

Removing Memory modules:
Locate the appropriate memory module socket.
To release the memory module from the socket, simultaneously press the ejectors on both ends of the memory module socket to fully open.
CAUTION: Handle each memory module only by the card edges, ensuring not to touch the middle of the memory module or metallic contacts.
Lift the memory module away from the system.

Serial COM port (if installed)
Loosen the captive screws on the system.
Press the blue release tab or blue button on the riser and holding the edges lift the expansion card riser from the riser connector on the system board.
Disconnect the serial COM port cable from the rear I/O board.
Open the latch on the expansion card riser and slide the serial COM port out of the expansion card riser.
Install the filler bracket if not replacing the serial COM port.

Removing VGA port (if installed):
Loosen the captive screws on the system.
Press the blue release tab or blue button on the riser and holding the edges lift the expansion card riser from the riser connector on the system board.
Disconnect the VGA port cable from the liquid cooling (LC) rear I/O board.
Open the latch on the expansion card riser and slide the VGA port out of the expansion card riser.
Install the filler bracket if not replacing the VGA port.

Removing the expansion card risers:
Loosen the captive screws on the riser and system.
Press the blue release tab or blue button on the riser and holding the edges lift the expansion card riser from the riser connector on the system board.
NOTE: The numbers on the image do not depict the exact steps. The numbers are for representation of sequence.
If the risers are not going to be replaced, install riser blanks, and if required tighten the captive screws.
NOTE: You must install a filler bracket over an empty expansion card slot to maintain Federal Communications Commission (FCC) certification of the system. The brackets also keep dust and dirt out of the system and aid in proper cooling and airflow inside the system.

Removing Rear drive module:
Using a Phillips #2 screwdriver, loosen the captive screws that secure the rear drive module to the system.
Press the blue release tab and holding the edges lift the rear drive module away from the system.

Removing Processor and heat sink module :
Ensure all four anti-tilt wires are in the locked position (outward position), and then using a Torx T30 screwdriver, loosen the captive nuts on the processor heat sink module (PHM) in the order that is mentioned below:
a. Loosen the first nut three turns.
b. Loosen the nut diagonally opposite to the nut you loosened first.
c. Repeat the procedure for the remaining two nuts.
d. Return to the first nut and loosen it completely.
NOTE: Ensure that the anti-tilt wires on the PHM are in locked position when loosening the captive nuts.
Set all the anti-tilt wires to unlocked position (inward position).
Lift the PHM from the system and set the PHM aside with the processor side facing up.

Removing R1 and R4 paddle cards (if installed):
Press the blue release tab on the paddle cards and holding the edges lift the paddle cards from the riser connector on the system board.

Removing the BOSS-N1 module:
Pull and lift the BOSS-N1 card carrier retention latch lock to open.
Slide the BOSS-N1 card carrier out.
Using the Phillips #1 screwdriver remove the M3 x 0.5 x 4.5 mm screw that secures the M.2 NVMe SSD to the BOSS-N1 card carrier.
Slide the M.2 NVMe SSD out from the BOSS-N1 card carrier.
Disconnect the BOSS-N1 power and signal cable from the system board.
Using the Phillips #1 screwdriver remove the M3 x 0.5 x 4.5 mm screw that secures the BOSS-N1 module on Riser 1.
Slide the BOSS-N1 module towards the front of the chassis and lift the module.
Pull the blue tag to remove the BOSS-N1 signal cable from the BOSS-N1 module.
Remove the BOSS-N1 power cable from the BOSS-N1 module.

GPU air shroud (if installed):
Hold the edges of the GPU air shroud, and lift the air shroud out of the system.

Removing the internal USB card (if installed):
Holding the blue tag, lift the internal USB card to disconnect from the connector on the system board.
Remove the USB memory key from the internal USB card.

Removing the OCP NIC card (if installed):
Open the blue latch to disengage the OCP NIC card.
Push the OCP NIC card towards the rear end of the system to disconnect from the connector on the system board.
Slide the OCP NIC card out of the slot on the system.
If the OCP NIC card is not going to be replaced, install a filler bracket .

Removing a power supply unit:
Press the release latch and holding the PSU handle, slide the PSU out of the bay.

Removing the system board:
Using the system board holder and plunger, slide the system board towards the front of the system.
At a tilted angle, lift the system board out of the chassis.

Installing the system board:
Unpack the new system board assembly.
CAUTION: Do not lift the system board by holding a memory module, processor, or other components.
CAUTION: Take care not to damage the system identification button while placing the system board into the chassis.
Holding the system board holder and plunger, lower the system board at a tilted angle into the system.
Slide the system board towards the rear of the chassis until the connectors are firmly seated in the slots.

Installing the TPM:
To install the TPM, align the edge connectors on the TPM with the slot on the TPM connector.
Insert the TPM into the TPM connector such that the plastic rivet aligns with the slot on the system board.
Press the plastic rivet until the rivet snaps into place.
Replace the screw that secures the TPM to the system board.

Installing the internal USB card
Connect the USB key to the internal USB card.
NOTE: For information about the exact location of USB on system board, see System board jumpers and connectors section.
Align the internal USB card with the connector on the system board and press firmly until the internal USB card is seated.

Installing the OCP NIC card:
If installed, remove the filler bracket.
NOTE: Store the filler bracket for future use. Filler brackets must be installed in empty expansion card slots to maintain Federal Communications Commission (FCC) certification of the system. The brackets also keep dust and dirt out of the system and aid in proper cooling and airflow inside the system.
Open the blue latch on the system board.
Slide the OCP NIC card into the slot in the system.
Push until the OCP NIC card is connected to the connector on the system board.
Close the blue latch to lock the OCP NIC card to the system.
NOTE: The numbers on the image do not depict the exact steps. The numbers are for representation of sequence.

Installing the processor and heat sink module:
Set the anti-tilt wires to the unlocked position on the heat sink (inward position).
Align the pin 1 indicator of the heat sink to the system board, and then place the processor heat sink module (PHM) on the processor socket.
CAUTION: To avoid damaging the fins on the heat sink, do not press down on the heat sink fins.
NOTE: Ensure that the PHM is held parallel to the system board to prevent damaging the components.
Set the anti-tilt wires to the locked position (outward position), and then using the Torx T30 screwdriver, tighten the captive nuts (8 in-lbf) on the heat sink in the order below:
In a random order, tighten the first nut three turns.
Tighten the nut diagonally opposite to the nut that you tighten first.
Repeat the procedure for the remaining two nuts.
Return to the first nut to tighten it completely.
Check all the nuts to ensure they are firmly secured.

Installing Memory modules:
Locate the appropriate memory module socket.
CAUTION: Handle each memory module only by the card edges, ensuring not to touch the middle of the memory module or metallic contacts.
NOTE: Ensure that the socket ejector latches are fully open before installing the memory module.
Align the edge connector of the memory module with the alignment key of the memory module socket, and insert the memory module in the socket.
CAUTION: To prevent damage to the memory module or the memory module socket during installation, do not bend or flex the memory module; insert both ends of the memory module simultaneously.
NOTE: The memory module socket has an alignment key that enables you to install the memory module in the socket in only one orientation.
CAUTION: Do not apply pressure at the center of the memory module; apply pressure at both ends of the memory module evenly.
Press the memory module with your thumbs until the ejectors firmly click into place. When the memory module is properly seated in the socket, the levers on the memory module socket align with the levers on the other sockets that have memory modules that are installed.

Installing R1 and R4 paddle cards:
Holding the edges, align the hole on the paddle cards with the guides on the system board.
Lower the paddle cards into place and press until the paddle card connector is fully seated on the system board connector.

Installing the GPU air shroud:
Align the tabs on the GPU air shroud with the slots on the system.
Lower the GPU air shroud into the system until it is firmly seated.

Installing the expansion card risers:
If installed, remove the riser blanks and if required loosen the captive screws.
NOTE: Store the riser blanks for future use. Filler brackets must be installed in empty expansion card slots to maintain Federal Communications Commission (FCC) certification of the system. The brackets also keep dust and dirt out of the system and aid in proper cooling and airflow inside the system.
Holding the edges or the touch points, align the holes on the expansion card riser with the guides on the system board.
Lower the expansion card riser into place and press the touch points until the expansion card riser connector is fully seated on the system board connector.
Tighten the captive screws on the risers and system if any.

Installing the 2 x 2.5-inch rear drive module:
Align the slot on the rear drive module with the guide on the system.
Lower and press the rear drive module on top of the riser until firmly seated.
Using a Phillips #2 screwdriver, tighten the captive screws that secure the rear drive module into the system.

Installing the VGA port
Open the latch on the expansion card riser and remove the filler bracket from the expansion card riser.
Slide the VGA port into the expansion card riser.
Connect the VGA port cable to the LC rear I/O board.
Holding the edges or the touch points, align the holes on the expansion card riser with the guides on the system board.
Lower the expansion card riser into place and press the touch points until the expansion card riser connector is fully seated on the system board connector.
Tighten the captive screws on the system.

Installing the serial COM port:
Open the latch on the expansion card riser and remove the filler bracket from the expansion card riser.
Slide the serial COM port into the expansion card riser and close the latch.
Connect the serial COM port cable to the rear I/O board.
Holding the edges or the touch points, align the holes on the expansion card riser with the guides on the system board.
Lower the expansion card riser into place and press the touch points until the expansion card riser connector is fully seated on the system board connector.
Tighten the captive screws on the system.

Installing the BOSS-N1 module
Connect the BOSS-N1 power and signal cables to the connectors on the BOSS-N1 module.
Align the BOSS-N1 module at an angle with the controller card module slot.
Insert the BOSS-N1 module and push the module horizontally towards the rear of the system until firmly seated.
Using the Phillips #1 screwdriver, secure the BOSS-N1 module with the M3 x 0.5 x 4.5 mm screw.
Connect the BOSS-N1 power and signal cable to the connectors on the system board.
Align the M.2 NVMe SSD at an angle with the BOSS-N1 card carrier.
Insert the M.2 NVMe SSD until it is firmly seated in the BOSS-N1 card carrier.
Using the Phillips #1 screwdriver, secure the M.2 NVMe SSD on the BOSS-N1 card carrier with the M3 x 0.5 x 4.5 mm screw.
Slide the BOSS-N1 card carrier into the BOSS-N1 module slot.
Close the BOSS-N1 card carrier release latch to lock the carrier in place.

Installing Side wall bracket:
Align the guide slots on the side wall bracket with the guides on the system and slide until the cover is seated firmly.
NOTE: Route the cables through the side wall cable holder.
Close the side wall cable holder until the holder clicks into place.

Installing Cooling fan cage assembly:
Holding the blue release lever of the cooling fan cage, align the guide rails with the guides on the system.
Lower the cooling fan cage assembly into the system until seated firmly.
Lower the blue release lever and press to lock the cooling fan cage assembly into the system.

Installing Air shroud:
Tilt the air shroud at an angle and align the air shroud tabs with the system slots.
NOTE: Ensure that the air shroud tabs are below the surface of the cooling cage fan assembly.
Lower the air shroud into the system until it is firmly seated.

Installing a power supply unit:
Slide the PSU into the PSU bay until the release latch snaps into place.

Reconnect all cables to the system board.
NOTE:Ensure that the cables inside the system are routed along the chassis wall and secured using the cable securing bracket.
Ensure that you perform the following steps:
Use the Easy Restore feature to restore the Service Tag. See the Restoring the system by using the Easy Restore feature section.
If the service tag is not backed up in the backup flash device, enter the system service tag manually. See the Manually update the Service Tag by using System Setup section.
Update the BIOS and iDRAC versions.
Re-enable the Trusted Platform Module (TPM).
Replace the system cover.
If applicable, install the system into the rack.
Reconnect the peripherals and connect the system to the electrical outlet, and then power on the system.