Dell XPS /Dimension Gen 3 Service Manual - Page 39

connector size connector data width (maximum) PCI Express connectors connector size connector data width (maximum) 36 pins 1 PCI Express lane one x16 164 pins 16 PCI Express lanes Drives Externally accessible: Available devices Internally accessible: two 3.5-inch drive bays two 5.25-inch drive bays Serial ATA drive, floppy drive, USB memory devices, CD drive, CD-RW drive, DVD drive, DVD-RW drive, and DVD and CD-RW combo drive two bays for 1-inch high hard drives Connectors External connectors: Serial Parallel IEEE 1394 Video Network adapter PS/2 (keyboard and mouse) USB Audio System board connectors: Primary IDE drive Serial ATA Floppy drive Fan PCI 2.3 PCI Express x1 PCI Express x16 Telephony (TAPI) 9-pin connector; 16550C-compatible 25-hole connector (bidirectional) front-panel 6-pin serial connector 15-hole connector RJ45 connector two 6-pin mini-DIN two front-panel and six back-panel USB 2.0- compliant connectors five connectors for line-in, line-out, microphone, surround, and center/Low Frequency Effects (LFE) channel; two front-panel connectors for headphones and microphones 40-pin connector on PCI local bus four 7-pin connectors 34-pin connector 5-pin connector four 120-pin connectors 36-pin connector 164-pin connector 4-pin connector Controls and Lights Power control Power light Hard-drive access light Link integrity light (on integrated network adapter) Activity light (on integrated network adapter) Diagnostic lights Standby power light push button green light - Blinking green in sleep state; solid green for power-on state amber light - Blinking amber indicates a problem with an installed device; solid amber indicates an internal power problem (See "Power Lights.") green green light - A good connection exists between a 10-Mbps network and the computer. orange light - A good connection exists between a 100-Mbps network and the computer. yellow light - A good connection exists between a 1 GB (or 1000-Mbps) network and the computer. off (no light) - The computer is not detecting a physical connection to the network. yellow blinking light four lights on the back panel (See "Diagnostic Lights.") AUX_PWR on the system board