Dell HR675 owner manual Front Bezel, Inch drive bay Diskette drive Front bezel

11	5.25-inch drive bay	12	diskette drive
13	front bezel	14	expansion card fan
15	3.5-inch hard drive bays (4)	16	system board
17	expansion-card cover

The system board in your system supports a single processor, five expansion cards, and six memory modules. Internal hard drive bays offer space for four SAS or SATA hard drives, cabled or hot-pluggable.

NOTE: A controller expansion card is required for SAS hard drives.

The drive bays in the front of your system provide space for an optical drive, an optional tape drive or second optical drive, an optional diskette drive, and up to four hot-pluggable hard drives.

Power is supplied to the system board and internal peripherals through a pair of redundant power supplies or a single non-redundant power supply.

Front Bezel

The front bezel covers the front of the system. In order to remove or install any devices in the front drive bays, the front bezel must first be removed.

NOTE: If you are removing or installing a hot-pluggable hard drive, the system may remain turned on and in the upright position during removal of the front bezel (see "Diskette Drive (Optional)" on page 84). If you are removing or installing any other system component(s), the system should be turned off and placed in the orientation shown in Figure 3-1.

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Installing System Components