Replacing 3.3 Volt Add-In Cards In Low Profile, Half-Length Pci Adapter Subsystem; Figure 34. Segment C Low-Profile, Half-Length Pci Adapter Subsystem - IBM @server xSeries 343 Product Manual

2 Adapter Cards installed and on-board
Dual NIC device disabled
3 Adapter Cards installed and on-board
Dual NIC device disabled
Replacing 3.3 Volt Add-in Cards in Low Profile, Half-
Length PCI Adapter Subsystem
A three-slot PCI adapter assembly that supports only low-profile, half-length PCI adapters is
installed in the Segment C PCI riser slot located on the right side of the server baseboard. This PCI
adapter assembly is configured and installed as shown in Figure 34. After the PCI adapter
assembly is removed from the system, it is configured with PCI adapters by plugging the PCI
adapters into the PCI connectors on the 3.3-Volt riser card that is part of the PCI adapter assembly.
The PCI adapter assembly is then installed into the system by plugging the riser card into the riser
card connector on the server baseboard. In addition, it is necessary to make sure that the
interlocking metal tabs on the back of the PCI adapter assembly are correctly inserted into the slots
in the back of the chassis.
Low-Profile, Half-Length
PCI Adapter

Figure 34. Segment C Low-Profile, Half-Length PCI Adapter Subsystem

Table 27 shows the maximum PCI bus speed achievable on PCI Bus Segment C. Note that only 3.3-V
PCI riser cards are supported in the Segment C PCI Adapter Subsystem. 5-V PCI riser cards are not
supported.
102
Configuration
Install PCI Adapters in PCI
1
Adapter Assembly
3.3 Volt Riser Card 5-Volt Riser Card
PCI-X 64 bit/66 MHz PCI-X 32 bit/33 MHz
PCI-X 64 bit/66 MHz PCI-X 32 bit/33 MHz
3-slot PCI Adapter Assembly - supports
only low-profile/half-length PCI adapters
Install PCI Adapter
2
Assembly in System
TP00470
Upgrading the Hardware