Sun Microsystems 6.0005E+11 manual Installing a Module

3

3.4.4.2 Installing a Module

To maximize performance when installing UltraSPARC modules on a CPU/Memory board, use all CPU 0 connectors on the lowest numbered slot to the highest numbered slot. After this, if there are modules remaining, use the CPU 1 connectors in the same order.

1.Take the UltraSPARC module out of the protective packaging and inspect for dust on the connectors.

If necessary, clean the connectors with a dry, stiff toothbrush.

2.Remove the applicable CPU/Memory board as indicated in Section 3.4.1, “Removing a Board.”

3.Inspect the board module mating surface. If the surface requires cleaning, use a dry, stiff toothbrush to clean debris from the mating surfaces.

Note – There are miniature silver alignment pins on the compression connectors which, when the module is properly seated, align with related receptacles on the mating surfaces of the CPU/Memory board. In addition, there is a gold standoff mounted on the CPU/Memory board opposite the module’s smaller board connector. This acts as a standoff for the module as well as an alignment pin.

4.Align the module over the two board receptacles using the single standoff as well as the alignment pins located on the module compression connector as a guide.

See Figure 3-10 and Figure 3-11.

5.Holding the module by the edges, rest it on the board standoff, aligning the compression connectors with the screws.

Firmly but gently press the module straight down until the standoff post snaps into place and the module connectors are fully seated.

6.Tighten the 3/32 hex screws of the module in two stages:

a. Tighten to 3 inch-pounds in the tightening sequence as follows:

CPU/Memory Boards and Components 3-17