Prerequisites
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.
Disconnect cables that are connected to the components.
Removing the air shroud:
Press the release tab on both side of the air shroud.
Lift the air shroud from the system.
Removing the front bezel:
Unlock the bezel.
Press the release button, and disengage the left end of the bezel.
Unhook the right end, and remove the bezel.
Removing a cooling fan:
Hold the orange release tab and lift the cooling fan to disconnect the fan from the connector on the system board.
Removing the expansion card risers:
For Riser 1A and Riser 4A, first using a Phillips 2 screwdriver, loosen the blue thumb screws on the riser. Press the blue release tab and holding the blue touch points, lift the expansion card riser from the riser connector on the system board.
Removing a memory module:
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.
Removing the processor and heat sink module(PHM):
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:
Loosen the first nut three turns.
Loosen the nut diagonally opposite to the nut you loosened first.
Repeat the procedure for the remaining two nuts.
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 the processor:
Place the heat sink with the processor side facing up.
Using your thumb, lift the thermal interface material (TIM) break lever to release the processor from the TIM and retaining clip.
Holding the processor by the edges, lift the processor away from the retaining clip.
NOTE:Ensure to hold the retaining clip to the heat sink as you lift the TIM break lever.
NOTE:Ensure to return the TIM break lever back to original position.
Using your thumb and index finger, first hold the retaining clip release tab at the pin 1 connector, pull out the tip of the retaining clip release tab, and then lift the retaining clip partially from the heat sink.
Repeat the procedure at the remaining three corners of the retaining clip.
After all the corners are released from the heat sink, lift the retaining clip from the pin 1 corner of the heat sink.
Removing the OCP card:
Open the blue latch to disengage the OCP card.
Push the OCP card toward the rear end of the system to disconnect from the connector on the system board.
Slide the OCP card out of the slot on the system.
If the OCP card is not going to be replaced, install a OCP shroud and filler bracket .
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 a power supply unit:
Press the release latch and holding the PSU handle, slide the PSU out of the bay.
Removing the VSB:
Remove the screws to disengage the VSB cable from the VSB board connected to the system board.
Disconnect the signal cable from the VSB.
Disconnect the power cable and keep it away from the system.
Lift the plunger and slide the VSB tray to rear of the system.
Disengage the VSB tray from the system board and lift it out of the system.
NOTE:The procedure to remove the left and right VSB is similar.
Remove all the screws and lift the VSB from the VSB tray.
Removing the BOSS-N1 card carrier, M.2 SSD module and BOSS-N1 card:
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 SSD module to the BOSS-N1 card carrier.
Slide the M.2 SSD module out from the BOSS-N1 card carrier.
Disconnect the BOSS-N1 power and signal cable from the system board.
Remove the BOSS-N1 power and signal cable from the BOSS-N1 module.
Using the Phillips 1 screwdriver remove the M3 x 0.5 x 4.5 mm screw that secures the BOSS-N1 module.
Slide the BOSS-N1 module toward the front of the chassis and lift the module.
Removing the system board:
Using the system board holder and plunger, slide the system board toward the front of the system.
At a tilted angle, lift the system board out of the chassis.
Removing the system board tray:
Unlock the blue release plunger to unlock the system board tray from the chassis
Hold the blue release plunger, and lift the system board tray away from the chassis.
Removing the LAAC GPU tray:
Using a Phillips 2 screwdriver, loosen the two blue thumb screws on both sides of the GPU assembly.
Hold the two blue thumb screws and rotate the GPU assembly toward the rear of the system.
Lift the black latch and disconnect the GPU cable connecting on the NVlink baseboard.
Observe and disconnect the cables from the LAAC GPU Tray connector from the PDB and backplane.
Lift the handles up to unlock the LAAC. Holding both the handles, lift the LAAC out of the system.
Removing the power distribution board:
Unlock the plungers to release the PDB tray handle from the chassis.
Using the PDB holders, lift the PDB out of the chassis.
Installing the power distribution board:
Using the PDB holders, align the PDB tray to the guiding pins in the chassis. Lower it and slide to the rear of the system.
Lock the plungers on the PDB tray to secure it to the chassis.
Installing the LAAC GPU tray:
Push down the black latch and reconnect the GPU cable connecting on the NVlink baseboard.
Hold the two blue thumb screws and rotate the GPU assembly toward front of the system.
Using a Phillips 2 screwdriver, tighten the two blue thumb screws on both side of the GPU assembly.
Reconnect the cables from the LAAC GPU Tray connector on to the PDB.
Holding both the handles, align and lower tray along the guiding features with their corresponding marks on the chassis until the tray locks in its place. Push the handles in its locking position.
Installing the system board tray:
Holding the system board tray, align the holes on the system board tray with the guides on the chassis to ensure correct orientation.
Lower the system board tray into place and press the touch points until the tray is fully seated on the chassis.
Flip in the blue release plunger to lock the system board tray to 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.
Hold the blue plastic handle and sheet metal handle on the system board and place it onto the chassis.
Align the guiding features with their corresponding marks on the chassis.
Hold onto the blue plastic handle with one hand and use the other hand to push the plunger, sliding the system board towards the rear of the chassis until it clicks and locks plunger.
NOTE:Ensure the plunger is locked.
Installing a power supply unit:
Slide the PSU into the PSU bay until the release latch snaps into place.
Installing the OCP card:
If installed, remove the OCP filler bracket and OCP shroud.
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 and slide the OCP card into the slot in the system.
Push until the OCP card is connected to the connector on the system board.
Close the blue latch to lock the OCP 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:
Place the processor in the processor tray.
NOTE:Ensure the pin 1 indicator on the processor tray is aligned with the pin 1 indicator on the processor.
Place the retaining clip on top of the processor in the processor tray aligning pin 1 indicator on the processor.
NOTE:Ensure the pin 1 indicator on the retaining clip is aligned with the pin 1 indicator on the processor before placing the retaining clip on the processor.
NOTE:Before you install the heat sink, ensure to place the processor and retaining clip in the tray.
Align the processor with retaining clip, by using your fingers press the retaining clip on all the four sides until it clicks into place.
NOTE:Ensure that the processor is securely latched to the retaining clip.
If you are using an existing heat sink, remove the thermal grease from the heat sink by using a clean lint-free cloth.
Use the thermal grease syringe included with your processor kit to apply the grease in a thin spiral design on the bottom of the heat sink.
CAUTION:Applying too much thermal grease can result in excess grease coming in contact with and contaminating the processor socket.
NOTE:The thermal grease syringe is intended for single use only. Dispose the syringe after you use it.
For new heat sink, remove the Thermal Interface Material (TIM) protective film from the base of heat sink.
Place the heat sink on the processor and press the base of the heat sink until the retaining clip locks onto the heat sink at all the four corners.
CAUTION:To avoid damaging the fins on the heat sink, do not press down on the heat sink fins.
NOTE:
Ensure latching features on retaining clip, and heat sink are aligned during assembly.
Ensure that the pin 1 indicator on the heat sink is aligned with the pin 1 indicator on the retaining clip before placing the heat sink onto the retaining clip.
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 (12 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 a memory module:
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.
If a memory module is installed in the socket, remove it.
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 a cooling fan:
Align and lower the cooling fan into the cooling fan assembly until the fan clicks into place.
Installing the air shroud:
Align the slot on the air shroud with the standoff on the chassis..
Lower the air shroud into the system until it is firmly seated.
Installing the system cover:
Align the tabs on the system cover with the guide slots on the system and slide the system cover.
Close the system cover release latch.
NOTE:Ensure that the system cover closes without obstruction or unnecessary force. Reseat any cables or components or realign the system cover if necessary.
Using a 1/4-inch flat head or Phillips 2 screwdriver, rotate the lock clockwise to the lock position.
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.
