Intel D850MVSE Specification page 24

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Intel Desktop Board D850MV Specification Update
3. Clarification of SMBus Routing
Section 2.8.2.1 will change in its entirety as follows:
2.8.2.1 Expansion Slots
The board has the following expansion slots:
•
One AGP 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 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
The SMBus routing to the PCI bus connectors does not conform to the PCI
Engineering Change Notice (ECN) "Addition of the SMBus to the PCI Connector
ECN", dated October 5th, 2000. The ECN specifies that SMBus signals must be
routed to all PCI bus connectors. On this board, SMBus signals are routed to
PCI bus connector 2 only.
Add-in cards that implement PCI bus connector pins A40 and A41 for any
purpose other than SMBCLK (SMBus clock) and SMBDAT (SMBus data) should
not be installed in PCI bus connector 2.
For information about
Addition of the SMBus to the PCI Connector ECN
✏
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
18
Refer to
http://www.pcisig.com/data/s
pecifications/smb_ecn_0405
01.pdf