Internal I/O Connectors - Intel D850MVSE Specification

2.8.2 Internal I/O Connectors

The internal I/O connectors are divided into the following functional groups:
Audio (see page 58)
Auxiliary line in
ATAPI CD-ROM
Power and hardware control (see page 60)
Fans (three on the D850 MD board, four on the D850MV board)
ATX12V
Main power
Auxiliary power (optional)
Add-in boards and peripheral interfaces (see page 62)
CNR (optional)
PCI bus (three on the D850MD board; five on the D850MV board)
AGP
IDE (two)
Diskette drive
SCSI hard drive activity LED
2.8.2.1 Expansion Slots
The board has the following expansion slots:
One AGP connector or an optional AGP Pro50 connector (ATX expansion slot 6). The AGP
connector is keyed for 1.5 V AGP cards only. Do not install a legacy 3.3 V AGP card. The
AGP connector is not mechanically compatible with legacy 3.3 V AGP cards. See Figure 6 on
page 26 for more information on the AGP keying mechanism.
PCI 2.2–compliant local bus slots (three on the D850MD board, five on the D850MV board).
The SMBus is routed to PCI bus connector 2 only (ATX expansion slot 4). PCI add-in cards
with SMBus support can access sensor data and other information residing on the board.
One CNR connector (optional), shared with PCI bus connector 3 (ATX expansion slot 1) on
the D850MD board or with PCI bus connector 5 (ATX expansion slot 1) on the D850MV
board.
NOTE
This document references back panel slot numbering with respect to processor location on the
board. The AGP slot is not numbered. PCI slots are identified as PCI slot #x, starting with the
slot closest to the processor. The CNR slot shares PCI slot 5. The ATX/microATX specifications
identify expansion slot locations with respect to the far edge of a full-sized ATX chassis. The ATX
specification and the board's silkscreen are opposite and could cause confusion. The ATX
numbering convention is made without respect to slot type (PCI vs. AGP) but refers to an actual
slot location on a chassis. Figure 15 on page 63 illustrates the D850MD board's PCI slot
numbering. Figure 16 on page 64 illustrates the D850MV board's PCI slot numbering.
Technical Reference
57