Intel D850MVSE - Connectors

Technical Reference
53
2.8 Connectors
CAUTION
Only the back panel connectors and the front panel USB connector of the D850MD and D850MV
boards have overcurrent protection. All of the remaining internal connectors on the D850MD and
D850MV boards are not overcurrent protected and should connect only to devices inside the
computer’s chassis, such as fans and internal peripherals. Do not use these connectors to power
devices external to the computer’s chassis. A fault in the load presented by the external devices
could cause damage to the computer, the interconnecting cable, and the external devices
themselves.
This section describes the boards’ connectors. The connectors can be divided into the following
groups:
• Back panel I/O connectors (see page 54)
 PS/2 keyboard and mouse
 USB (four with USB 1.1 option, two with USB 2.0)
 Parallel port
 Serial ports (two)
 LAN (optional)
 Audio (Line out, Line in, and Mic in)
• Internal I/O connectors (see page 57)
 Audio (auxiliary line input and ATAPI CD-ROM)
 Fans (three on the D850 MD board, four on the D850MV board)
 Power (three: two standard, one optional)
 Add-in boards (CNR, PCI, and AGP)
 IDE (two)
 Diskette drive
 SCSI hard drive activity LED
• External I/O connectors (see page 70)
 Front panel audio
 Front panel USB
 Auxiliary front panel power/sleep/message-waiting LED
 Front panel (power/sleep/message-waiting LED, power switch, hard drive activity LED,
reset switch, and auxiliary front panel power LED)