Dell 690 manual Audio, Controllers, Expansion Bus, PCI Express, Drives, Connectors

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