Supermicro

Chapter 5: Chassis Setup

5-5 Installing the Motherboard

Permanent and Optional Standoffs

Standoffs prevent short circuits by securing space between the motherboard and the chassis surface. The SC835 chassis includes permanent standoffs in locations used by most motherboards. These standoffs accept the rounded Phillips head screws included in the accessories packaging.

Some motherboards require additional screws for heatsinks, general components or non-standard security. Optional standoffs are included to these motherboards.

To use an optional standoff, you must secure a hexagonal post by screwing it into the necessary spot.

Standoff Labeling

Standoff locations are labeled on the bottom of the chassis with the letters: P, D, and A.

P = Most compatible motherboards have a processor or CPU located here. If necessary, place standoffs here for the CPU's heatsink.

D = Place optional standoffs here if your motherboard requires additional posts to hold the unit in place.

A = A number of older motherboards have processors or CPUs located in areas designated "A". Place standoffs here for the CPU's heatsink.

Motherboard Installation Procedure

If you are replacing a motherboard that is operating, power down the system as described in Section 5-2.

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