Dell PowerEdge 850 User Manual download pdf (Page 13)

Rack Installation Guide 11

To mark the rack, perform the following steps:

Place a mark (or tape) on the rack's front vertical rails where you want to locate the bottom

of the system you are installing in the rack.

The bottom of each 1-U space is at the middle of the narrowest metal area between holes

(marked with a horizontal line on some rack cabinets—see Figure 1-4).

Place a mark 44 mm (1.75 inches) above the original mark you made (or count up three holes

in a rack that meets EIA-310 standards) and mark the rack's front vertical rails with a felt-

tipped pen or masking tape (if you counted holes, place a mark just above the top hole). This

mark or piece of tape indicates where the system's upper edge will be located on the vertical

rails (see Figure 1-4).

Figure 1-4. Marking the Vertical Rails

tape on vertical rail

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Dell PowerEdge 850 User Manual Page 13