Dell NM176 owner manual Optional Sink Power supply, Hard drive

Figure 3-1. Inside the System

45

3

6

2

7

1

10
					8
	9
1	optical drive (optional)	2	PCI fan (optional)	3	riser card
4	PCI expansion card	5	processor and heat	6	memory modules (4)
	(optional)		sink
7	power supply	8	processor fan module	9	hard drive 1
10	hard drive 0

The system board holds the system's control circuitry and other electronic components. The processor and memory are installed directly on the system board. Using a riser card, the system can accommodate two expansion cards. The peripheral bays provide space for up to two hard drives and an optional optical drive. Power is supplied to the system board and drives through one nonredundant power supply.

52

Installing System Components