72 Installing System Components2 Align the holes on the hard drive with the back set of holes on thehard-drive bracket.3 Attach the four screws to secure the hard drive to the hard-drive bracket.Expansion CardExpansion Card Installation GuidelinesYour system supports one PCIe Generation 2 expansion card installed on anexpansion-card riser.• The expansion-card slot supports full-height and half-length cards.• The expansion-card slot is not hot-swappable.Installing an Expansion CardCAUTION: Many repairs may only be done by a certified service technician. Youshould only perform troubleshooting and simple repairs as authorized in yourproduct documentation, or as directed by the online or telephone service andsupport team. Damage due to servicing that is not authorized by Dell is not coveredby your warranty. Read and follow the safety instructions that came with theproduct.1 Unpack the expansion card and prepare it for installation.For instructions, see the documentation accompanying the card.2 Turn off the system, including any attached peripherals, and disconnectthe system from the electrical outlet.3 Open the system. See "Opening the System" on page 62.4 Open the expansion-card latch and remove the filler bracket. SeeFigure 3-7.5 Holding the expansion card by its edges, position the card so that the card-edge connector aligns with the expansion-card connector on theexpansion-card riser.6 Insert the card-edge connector firmly into the expansion-card connectoruntil the card is fully seated.7 Close the expansion-card latch. See Figure 3-7.