This motherboard provides two Single Edge Contact (SEC) Slot 2 connectors for ® either one or two Intel Xeon™ processors packaged in an SEC cartridge. When only one processor is used, the other Slot 2 connector must be terminated with the provided front side bus termination module.
Align the rubber pad over the metal baseboard so that the holes match. Align the ASUS XG-DLS motherboard over the rubber pad and metal baseboard so that the screws match up with the motherboard’s screw holes. Place and tighten three captive nuts in the corner locations circled.
Step 4: Install Cartridge Lifters Each Xeon processor requires two lifters in order to allow safe removal of the pro- cessor. The lifters clamps the cartridge on the two holes at each top corner. (Item 5) CPU Lifter One lifter being inserted over the Half-colapsed lifter after installation.
This is the end of the Xeon™ processor installation and you should have 4 extra (only 11 is used out of 15) captive nuts in case you loose any.