Dell XPS /Dimension Gen 5 Owner's Manual - Page 124
Expansion Bus, Drives, PCI Express lanes
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www.dell.com | support.dell.com Expansion Bus Bus type PCI 32-bit PCI Express x1, x4, and x16 Bus speed PCI: 33 MHz PCI Express: 2.5 Gb/s raw bandwidth (bidirectional) per lane Bus throughput PCI Express: x1 slot bidirectional speed - 500 MB/s x4 slot bidirectional speed - 2 GB/s x16 slot bidirectional speed - 8 GB/s PCI connector three connector size 120 pins connector data width (maximum) 32 bits PCI Express connector one x1 connector size 36 pins connector data width (maximum) 1 PCI Express lane PCI Express connector one x4 connector size 98 pins connector data width (maximum) 4 PCI Express lanes PCI Express connector one x16 connector size 164 pins connector data width (maximum) 16 PCI Express lanes Drives Externally accessible: Available devices Internally accessible: one 3.5-inch drive bays three 5.25-inch drive bays Serial ATA drive, floppy drive, memory devices, CD drive, CD-RW drive, DVD drive, DVD-RW drive, and DVD and CD-RW combo drive three bays for 1-inch high hard drives 124 Appendix