Pci-X Adapters; Ibm I Iop Adapters; Pcie Adapter Form Factors - IBM Power 750 Technical Overview And Introduction

Gen2: Double the speed of the Gen1 interface, which gives a capacity of a peak
bandwidth of 4 GBps on an 8-lane interface
PCIe Gen1 slots support Gen1 adapter cards and also most of the Gen2 adapters. In this
case, when a Gen2 adapter is used in a Gen1 slot, the adapter operates at PCIe Gen1
speed. PCIe Gen2 slots support both Gen1 and Gen2 adapters. In this case, when a Gen1
card is installed into a Gen2 slot, it operates at PCIe Gen1 speed with a slight performance
enhancement. When a Gen2 adapter is installed into a Gen2 slot, it operates at the full PCIe
Gen2 speed.
The IBM Power 750 and Power 760 server is equipped with six PCIe 8x Gen2 slots.

2.7.2 PCI-X adapters

The Power 750 and Power 760 systems do not support PCI-X adapters. Neither in internal
slots nor in a PCI-X DDR 12X I/O Drawer (FC 5796).

2.7.3 IBM i IOP adapters

IBM i IOP adapters are not supported with the Power 750 and Power 760, which has the
following results:
Existing PCI adapters that require an IOP are affected
Existing I/O devices are affected, such as certain tape libraries or optical drive libraries, or
any HVD SCSI device
Twinaxial displays or printers cannot be attached except through an OEM protocol converter
SDLC-attached devices using a LAN or WAN adapter are not supported
SNA applications still can run when encapsulated inside TCP/IP, but the physical device
attachment cannot be SNA
Earlier Fibre Channel and SCSI controllers that depended upon an IOP being present are
not supported
Before adding or rearranging adapters, use the System Planning Tool to validate the new
adapter configuration. See the IBM System Planning Tool website:
http://www.ibm.com/systems/support/tools/systemplanningtool/
If you are installing a new feature, ensure that you have the software that is required to
support the new feature, and determine whether there are any existing PTF prerequisites to
install. See the following website for prerequisite information:
https://www-912.ibm.com/e_dir/eServerPreReq.nsf

2.7.4 PCIe adapter form factors

IBM POWER7 and POWER7+ processor-based servers are able to support two form factors
of PCIe adapters:
PCIe low-profile (LP) cards, which are used on the Power 710 and Power 730 PCIe slots.
Low profile adapters are also supported in the PCIe riser card slots of the Power 720 and
Power 740 servers.
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IBM Power 750 and 760 Technical Overview and Introduction