Item Indicator, button, orconnector Icon Description6 PCIe expansion card slot(x16 slot, full height)7 Power supply unit (PSU) Enables you to install one 250 W AC PSU.8 Ethernet connectors Enable you to connect integrated 10/100/1000Mbps NIC connector.9 System identificationconnectorConnects the optional system status indicatorassembly through the optional cable managementarm.10 Video connector Enables you to connect a VGA display to thesystem.Hot swappable hard drive indicator codesFigure 4. Hot swappable hard drive indicators1. hard drive activity indicator 2. hard drive status indicator3. hard driveNOTE: If the hard drive is in Advanced Host Controller Interface (AHCI) mode, the status indicator(on the right side) does not function and remains OFF.Table 7. Hot swappable hard drive indicatorsDrive-status indicator pattern (RAID only) ConditionFlashes green two times per second Identifying drive or preparing for removal.OFF Drive ready for insertion or removal.13