Specification Clarifications; Expansion Slots - Intel D845GBV Specification Update

Specification Update for Intel

SPECIFICATION CLARIFICATIONS

The Specification Clarifications listed in this section apply to the Technical Product Specification for Intel
Desktop Boards using the Intel
be incorporated into a future version of that specification.
1. Clarification of SMBus Routing
Section 2.2.2.1 will change in its entirety as follows:
2.2.2.1

Expansion Slots

The Desktop Board has the following expansion slots:
•
One AGP connector. 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.
•
Three PCI rev 2.2 compliant local bus slots. The SMBus is routed to PCI bus
connector 2.
•
One CNR (optional), shared with PCI bus connector 3 (ATX expansion
slot 1).
✏
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 Desktop Board. The AGP slot is not numbered. PCI slots are

Desktop Boards Using the Intel

845G Chipset (Order Number A81229). All Specification Clarifications will

845G Chipset

Refer to
http://www.pcisig.com/data/s
pecifications/smb_ecn_0405
01.pdf
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