The midplane lid removal process is designed to be tool-free and follows a specific sequence to avoid damage .

The correct method is:

Push in on the two handles located near the PCIe tray .

Slowly lift the midplane lid up , ensuring it does not catch on other components.

Remove the lid at an angle to avoid damaging adjacent connectors.

Why this method is used?

The angled removal helps avoid contact with fragile connectors on the midplane.

Forcing the lid straight up could damage PCIe slots or motherboard connectors.

Official Documentation Reference:

Supermicro AS-8125GS-TNMR2 Disassembly Manual details the correct method for removing the midplane lid .

The midplane bracket in Supermicro MI300X GPU systems is secured with 6 screws that must be removed before disassembly .

Why 6 screws?

3 screws on each side of the chassis hold the midplane bracket in place.

This design helps stabilize the midplane and prevents movement.

Failure to remove all 6 screws can result in forcefully damaging the bracket .

Official Documentation Reference:

Supermicro AS-8125GS-TNMR2 Disassembly Manual specifies that 6 screws must be removed before handling the midplane bracket .