Dell Precision 690 - Manual (Page 81)

Type PCIe x16 (up to 150 W supported)
Audio
Type Sigmatel STAC9200 High Defintion Audio CODEC and
Azalia/ High Definition digital controller
Stereo conversion 24-bit analog-to-digital; 24-bit digital-to-analog
Controllers
Hard drive integrated SAS, with RAID 0/1
integrated SATA
optional PCI Express SAS, with RAID
Expansion Bus
Bus type PCI 2.3
PCI Express 1.0A
PCI-X 2.0A
USB 2.0
Bus speed PCI: 133 MB/s
PCI-X: 800 MB/s
PCI Express:
x4/ x8 slot bidirectional speed - 2 GB/s
x16 slot bidirectional speed - 8 GB/s
Card Slots The center five connector slots support full-length
cards, and the connector slots on either side (one x8
PCI Express slot (wired as x4) and one PCI-X card)
support half-length cards.
PCI
connector one
connector size 120 pins
connector data width (maximum) 32 bits
PCI-X
connectors two
connector size 188 pins
connector data width (maximum) 64 bits
PCI Express x8 (wired as x4)
connectors three x8 (supports x8, x4, and x1 modes/cards)
connector size 98 pins
connector data width (maximum) 4 PCI Express lanes
PCI Express x16
connector one x16 slot (supports x16, x8, x4, and x1
modes/cards)
connector size 164 pins
connector data width (maximum) 16 PCI Express lanes
Drives
Externally accessible: four 5.25-inch drive bays
Internally accessible: four 3.5-inch hard-drive bays
Connectors
External connectors:
Serial two 9-pin connectors; 16550C-compatible
Parallel 25-hole connector (bidirectional)
IEEE 1394 two 6-pin connectors (one front-panel and one rear-
panel connector)
Network adapter RJ45 connector
PS/2 (keyboard and mouse) two 6-pin mini-DIN
USB two front-panel and five back-panel USB 2.0–
compliant connectors