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.
Removing the GPU fan cage:
Using a Phillips 2 screwdriver, release the two thumb screws on the rear fan cage.
Using both hands pull the left and right handles outward together and pull the complete module out until the safety latch engages with the chassis.
Push the button on both sides to disengage the latch from chassis, then pull GPU fan cage out of the chassis.
Removing the GPU tray:
Using a Phillips 2 screwdriver, release ten capture screws on both side of the chassis.
NOTE: The screw torque is 10 in-lbs and requires additional effort to release the screws.
Using both hands, rotate the handle and slowly pull the GPU tray toward the rear of the system.
Press and release the safety latch on both sides of the GPU tray.
Hold the GPU lifting handle and pull the tray out from the rear of the chassis.
Removing the GPU top cover:
Press the buttons on both sides of the GPU tray top cover and slide the top cover forward.
NOTE:This step is not applicable for AMD MI300X GPU. Please proceed to Step 2.
Lift the GPU top cover from the GPU module.
NOTE:For heatsink removal, it is required to use a Phillips screwdriver or bit with a narrow shaft that is at least 15cm (6 inches) of length.
Removing the A100 GPU board:
Remove GPU air baffles from between the heatsink.
NOTE:There are a total of three GPU air baffles.
Using Phillips 1 screwdriver, loosen the screws securing front heatsink in the order that is mentioned below:
Loosen the heatsink screws 3 turns each in the following order. Disassembly order:1, 2, 3, 4.
Return to first screw and completely loosen it.
Completely loosen the remaining screws in the correct order.
Lift and remove the front heatsink from the GPU socket.
NOTE:There are four front side heatsinks on the GPU baseboard. Repeat steps 2 and 3 to remove remaining front heatsinks.
Using Phillips 1 screwdriver, loosen the screws securing rear heatsink in the order that is mentioned below:
Loosen the heatsink screws 3 turns each in the following order. Disassembly order:1, 2, 3, 4.
Return to first screw and completely loosen it.
Completely loosen the remaining screws in the correct order.
Lift and remove the rear heatsink from the GPU socket.
NOTE:There are four rear side heatsinks on the GPU baseboard. Repeat steps 4 and 5 to remove remaining rear heatsinks.
Using Torx 15 screwdriver, loosen the screws securing the NVlink heatsink in the order that is mentioned below:
Loosen the first screw completely.
Loosen the screw diagonally opposite to the screw you loosened first.
Repeat the procedure for the remaining two screws.
Lift and remove the NVlink heatsink from the GPU baseboard.
NOTE:There are six NVlink heatsinks on the GPU baseboard. Repeat steps 6 and 7 to remove remaining NVlink heatsinks.
Using Torx 15 screwdriver, release the 16 captive screws that secure the GPU baseboard onto the GPU tray.
NOTE:Do not remove any GPUs. Replacement A100 baseboard comes with 8 new GPUs already attached.
Using the handles on the GPU baseboard lift it from the GPU tray.
Installing the A100 GPU board:
Align the GPU baseboard with the guiding pins and insert it onto the GPU tray in a top-to-bottom direction.
Using a Torx 15 screwdriver, hand-tighten the 16 captive screws down in the order shown. Then, utilize the Torque screwdriver in the same order and set the final torque at 6.0 ± 4% lbf-in or 0.68 ± 4% N-m.
Align and insert each NVlink heatsink on the GPU baseboard.
Using Torx 15 screwdriver, tighten the screws securing the NVlink heatsink in the order that is mentioned below:
Tighten the first screw completely.
Tighten the screw diagonally opposite to the screw you tightened first.
Repeat the procedure for the remaining two screws.
NOTE:For NVlink heatsink installation, ensure that the final torque value is 6 ± 4% lbf-in or 0.68 ± 4% N-m .
NOTE:There are six NVlink heatsinks installed on the GPU baseboard. Repeat steps 3 and 4 to install remaining NVlink heatsinks.
Align and insert each rear heatsink on the GPU socket.
Using Phillips 1 screwdriver, tighten the screws securing rear heatsink in the order that is mentioned below:
Tighten the heatsink screws 3 turns each in the following order. Assembly order:1, 2, 3, 4.
Return to first screw and completely tighten it.
Completely tighten the remaining screws in the correct order.
NOTE:There are four rear heatsinks installed on the GPU base board. Repeat steps 5 and 6 to install remaining rear heatsinks.
NOTE:For GPU heatsink installation, ensure that the final torque value is 4 ± 4% lbf-in or 0.45 ± 4% N-m .
Align and insert each front heatsink on the GPU socket.
Using Phillips 1 screwdriver, tighten the screws securing front heatsink in the order that is mentioned below:
Tighten the heatsink screws 3 turns each in the following order. Assembly order:1, 2, 3, 4.
Return to first screw and completely tighten it.
Completely tighten the remaining screws in the correct order.
NOTE:There are four front side heatsink installed on the GPU base board. Repeat steps 7 and 8 to install remaining front heatsinks.
NOTE:For GPU heatsink installation, ensure that the final torque value is 4 ± 4% lbf-in or 0.45 ± 4% N-m .
Align and insert the GPU air baffles with the help of guide pins on them.
NOTE:There are a total of three GPU air baffles.
Installing the GPU top cover:
Align and place the GPU top cover down.
Push the GPU top cover from the front toward the rear of the GPU tray until it auto-locks by latch on both sides.
NOTE:This step is not applicable for AMD MI300X GPU.
Installing the GPU tray:
Lift and align the GPU tray with the rear of the chassis to ensure correct orientation.
NOTE:Two people are needed to carry the GPU tray from each side.
Using both hands, slowly push GPU tray along the track from the rear of the chassis.
NOTE:The GPU tray will slide forward and connect to the connector.
Using both hands, push the handle until it is in a vertical position and self-locks at the same time.
Using a Phillips 2 screwdriver, tighten the ten capture screws on both side of the chassis.
NOTE: The screw torque is 10 in-lbs and requires additional effort to tighten the screws.
Installing the GPU fan cage:
Hold the fan cage module and align it with the rear of the system.
NOTE:Ensure that the TOP side mark on the fan cage is in the correct position.
Press the fan cage module firmly into the chassis until it reaches the hard stop position.
Push the fan cage module into the chassis until the handles touch the middle plane.
NOTE:Ensure that the rear fan cage is level and not slanted.
Rotate the left and right handles inward by hand.
Using a Phillips 2 screw driver, tighten the two thumb screws on the rear fan cage.
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.
