Intel S5500WB12V Product Specification - Page 51

I/O Module Connector

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Intel® Server Board S5500WB TPS Functional Architecture 3.13.4 I/O Module Connector Mezanine connectors are provided to support the various I/O modules, both the older Gen 1 I/O modules supported by Intel® Server Board S5000PAL and newer, double-wide Gen 2 I/O modules supported by the Intel® Server Board S5520UR are supported on the Intel® Server Board S5500WB. The Intel® I/O Expansion Module is also required to inform the IOH of the Intel® I/O Expansion Module Bus usage, PEWIDTH bit 1 is to be used for this. Table 12. Intel® I/O Expansion Module Bus PEWIDTH Bits Intel® I/O Expansion Module one x8 Description 1 x8 PCI Express* target device two x4 2 x4 target devices PEWIDTH1 - Pin 2 0 1 Revision 1.9 37 Intel order number E53971-008

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Intel® Server Board S5500WB TPS
Functional Architecture
Revision 1.9
Intel order number E53971-008
37
3.13.4
I/O Module Connector
Mezanine connectors are provided to support the various I/O modules, both the older Gen 1 I/O
modules supported by Intel
®
Server Board S5000PAL and newer, double-wide Gen 2 I/O
modules supported by the Intel
®
Server Board S5520UR are supported on the Intel
®
Server
Board S5500WB.
The Intel
®
I/O Expansion Module is also required to inform the IOH of the Intel
®
I/O Expansion
Module Bus usage, PEWIDTH bit 1 is to be used for this.
Table 12. Intel
®
I/O Expansion Module Bus PEWIDTH Bits
Intel® I/O Expansion
Module
Description
PEWIDTH1 - Pin 2
one x8
1 x8 PCI Express* target device
0
two x4
2 x4 target devices
1