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PCI adapter placement rules and slot priorities for the 8231-E2C or 8231-E2D
Some adapters must be placed in specific PCI Express (PCIe) slots to function correctly or to perform optimally. Learn how to determine the slot to install PCI adapters for the 8231-E2C or 8231-E2D system.
PCI slot descriptions
The 8231-E2C or 8231-E2D system has five PCIe x8 G2 low-profile slots and one PCIe x4 low-profile slot. All slots support enhanced error handling (EEH), but are not hot pluggable. Figure 1 shows the rear view of the system with the location codes for the PCI adapter slots. Table 1 provides information about the slots. All slots in this system are low-profile slots only. Each PCIe is a separate PCI host bridge (PHB). PCIe slots 1 and 4 have an x16 connector and the other slots have x8 connector.
For the information about the maximum adapters that are supported on your system, see Table 2.
Figure 1. Rear view of the system with location codes
| Slot | Location code | Description | PHB | Adapter size | Direct memory access (DMA) capable |
|---|---|---|---|---|---|
| Slot 1 1 | P1-C2 | PCIe x8 G2 | PCIe-PHB5 | Low-profile | 64-bit |
| Slot 2 | P1-C3 | PCIe x8 G2 | PCIe-PHB4 | Low-profile | 32-bit |
| Slot 3 | P1-C4 | PCIe x8 G2 | PCIe-PHB3 | Low-profile | 32-bit |
| Slot 4 | P1-C5 | PCIe x8 G2 | PCIe-PHB2 | Low-profile | 64-bit |
| Slot 5 1 | P1-C6 | PCIe x8 G2 | PCIe-PHB1 | Low-profile | 32-bit |
| Slot 6 1, 2 | P1-C7 | PCIe x4 G2 | PCIe-PHB0 | Low-profile | 32-bit |
1Slot 1, slot 5, and slot 6 availability:
|
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PCIe adapters
Use this information to identify slot placement priorities and the maximum number of specified adapters that you can install. Verify whether the adapter is supported for your system. For details about the supported adapters, see Supported PCI adapters for the 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D.
| Feature code | Description | Slot priorities | Maximum number of adapters supported |
|---|---|---|---|
| 5277 | 4-port Async EIA-232 PCIe 1X
LP Adapter (FC 5277; CCIN 57D2)
|
1, 2, 3, 4, 5 | 5 |
| 5289 | PCIe 2-port Async EIA-232 PCIe
1X LPC Adapter (FC 5289; CCIN 57D4)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 20 |
| 5290 | PCIe LP 2-port Async EIA-232
Adapter (FC 5290; CCIN 57D4)
|
1, 2, 3, 4, 5 | 2 |
| 5785 | 4 Port Async EIA-232 PCIe Adapter
(FC 5785; CCIN 57D2)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 20 |
| 5273 | 8 Gb PCI Express Dual-port Fibre Channel
Adapter (FC 5273; CCIN 577D)
|
1, 2, 3, 4, 5 | 5 |
| 5276 | 4-Gb PCI Express Dual-port Fibre Channel
Adapter (FC 5276; CCIN 5774)
|
1, 2, 3, 4, 5 | 5 |
| 5735 | 8 Gb PCI Express Dual-port Fibre Channel
Adapter (FC 5735; CCIN 577D)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 20 |
| 5773 | 4 Gb PCI Express Single Port Fibre
Channel Adapter (FC 5773; CCIN 5773)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 20 |
| 5774 | 4 Gb PCI Express Dual-port Fibre Channel
Adapter (FC 5774; CCIN 5774)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 20 |
| EN0B | PCIe2 LP 16 Gb 2-port Fibre Channel
Adapter (FC EN0B; CCIN 577F)
|
1, 2, 3, 4, 5 | 5 |
| EN0Y | PCIe2 LP 8Gb 4-port Fibre Channel
Adapter (FC EN0Y; CCIN EN0Y)
|
1, 2, 3, 4, 5 | 5 |
| 5269 | POWER® GXT145 PCI Express Graphics Accelerator
(FC 5269; CCIN 5269)
|
1, 2, 3, 4, 5 | 5 |
| EC41 |
PCIe2 LP 3D Graphics Adapter
x1 (FC EC41)
|
1, 2, 3, 4, 5 | 4 |
| 5748 | POWER GXT145 PCI Express Graphics Accelerator (FC 5748; CCIN 5748)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 8 |
| EJ0J | PCIe3 RAID SAS Adapter (FC EJ0J;
CCIN 57B4)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 6 |
| EJ0L | PCIe3 12 GB Cache RAID SAS quad-port
6 Gb Adapter (FC EJ0L; CCIN 57CE)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 6 |
| EJ0M | PCIe3 LP RAID SAS Adapter (FC
EJ0M; CCIN 57B4)
|
1, 2, 3, 4, 5 | 5 |
| EJ10 | PCIe3 4 x8 SAS Port Adapter
(FC EJ10; CCIN 57B4)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 6 |
| EJ11 | PCIe3 LP 4 x8 SAS Port Adapter
(FC EJ11; CCIN 57B4)
|
1, 2, 3, 4, 5 | 5 |
| 5260 | PCIe2 LP 4-port 1 GbE Adapter
(FC 5260; CCIN 576F)
|
6, 1, 2, 3, 4, 5 | 6 |
| 5270 | 10 Gb FCoE PCIe Dual-port Adapter
(FC 5270; CCIN 2B3B)
|
1, 2, 3, 4, 5 | 5 |
| 5271 | 4-port 10/100/1000 Base-TX PCI Express Adapter (FC 5271;
CCIN 5717)
|
1, 2, 3, 4, 5 | 5 |
| 5272 | 10 Gb Ethernet-CX4 PCI Express Adapter (FC 5272;
CCIN 5272)
|
1, 2, 3, 4, 5 | 5 |
| 5274 | 2-port Gb Ethernet-SX PCI Express Adapter (FC 5274;
CCIN 5768)
|
1, 2, 3, 4, 5 | 5 |
| 5275 | 10 Gb Ethernet-SR PCI Express Adapter (FC 5275;
CCIN 2B54)
|
1, 2, 3, 4, 5 | 5 |
| 5279 | PCIe2 LP 2x10 GbE SFP+ Copper
2x1 GbE UTP Adapter (FC 5279; CCIN 2B52)
|
1, 2, 3, 4, 5 | 5 |
| 5280 | PCIe2 LP 2x10 GbE SR 2x1 GbE
UTP Adapter (FC 5280; CCIN 2B54)
|
1, 2, 3, 4, 5 | 5 |
| 5281 | 1 Gb Ethernet UTP 2-port PCIe
Adapter (FC 5281; CCIN 5767)
|
1, 2, 3, 4, 5 | 5 |
| 5284 | PCIe2 LP 2-port 10 GbE SR Adapter
(FC 5284; CCIN 5287)
|
1, 2, 3, 4, 5 | 5 |
| 5286 | PCIe2 LP 2-port 10 GbE SFP+ Copper
Adapter (FC 5286; CCIN 5288)
|
1, 2, 3, 4, 5 | 5 |
| 5708 | 10 Gb FCoE PCIe Dual-port Adapter
(FC 5708; CCIN 2B3B)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 20 |
| 5717 | 4-port 10/100/1000 Base-TX PCI Express Adapter (FC 5717;
CCIN 5717)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 20 |
| 5732 | 10 Gb Ethernet-CX4 PCI Express Adapter (FC 5732;
CCIN 2B43)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 20 |
| 5767 | 2-port 10/100/1000 Base-TX Ethernet PCI Express Adapter (FC 5767;
CCIN 5767)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 20 |
| 5768 | 2-port Gigabit Ethernet-SX PCI Express Adapter (FC 5768;
CCIN 5768)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 20 |
| 5769 | 10 Gb Ethernet-SR PCI Express Adapter (FC 5769;
CCIN 2B44)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 20 |
| 5772 | 10 Gb Ethernet-LR PCI Express Adapter (FC 5772;
CCIN 576E)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 20 |
| 5899 | PCIe2 4-port 1 GbE Adapter (FC
5899; CCIN 576F)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 20 |
| 9056 | PCIe LP 2-port 1 GbE TX adapter
(FC 9056; CCIN 5767)
|
1, 2, 3, 4, 5 | 1 |
| EC27 | PCIe2 LP 2-port 10 GbE RoCE SFP+
adapter (FC EC27; CCIN EC27)
|
1, 2, 3, 4, 5 | 5 |
| EC29 | PCIe2 LP 2-port 10 GbE RoCE SR
adapter (FC EC29; CCIN EC29)
|
1, 2, 3, 4, 5 | 5 |
| EC2G | PCIe LP 2-Port 10 GbE SFN6122F
Adapter (FC EC2G; CCIN EC2G)
|
2,3,5,1,4 | 4 |
| EC2H | PCIe LP 2-Port 10 GbE SFN5162F
Adapter (FC EC2H; CCIN EC2H)
|
2,3,5,1,4 | 4 |
| EN0J | PCIe2 LP 4-port (10 Gb FCoE,
1 GbE) SFP+ Adapter (FC EN0J, CCIN 2B93)
|
1, 2, 3, 4, 5 | 5 |
| EN0L | PCIe2 LP 4-port (10Gb FCoE and
1GbE) Copper and RJ45 Adapter (FC EN0L; CCIN 2CC1)
|
1, 2, 3, 4, 5 | 5 |
| EN0T |
PCIe2 LP 4-port (10Gb+1GbE) SR+RJ45 Adapter (FC EN0T; CCIN 2CC3)
|
1, 4, 2, 3, 5 | 5 |
| EN0V |
PCIe2 LP 4-port (10Gb+1GbE) Copper SFP+RJ45 Adapter (FC EN0V; CCIN 2CC3)
|
1, 4, 2, 3, 5 | 5 |
| EN0X |
PCIe2 LP 2-port 10 GbE BaseT RJ45 Adapter (FC EN0X; CCIN 2CC4)
|
1, 4, 2, 3, 5 | 5 |
| 2728 | 4-port USB PCIe Adapter (FC 2728;
CCIN 57D1)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 20 |
| 4808 | PCIe Cryptographic Coprocessor
(FC 4808; CCIN 4765)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 8 |
| 5283 | PCIe2 LP 2-port 4X InfiniBand
QDR Adapter (FC 5283; CCIN 58E2)
|
1 and 4 | 2 |
| 20531 | PCIe RAID and SSD SAS Adapter
3 Gb Low-profile (FC 2053; CCIN 57CD)
|
2 and 5 or 3 | 2 |
| 20551 | PCIe RAID and SSD SAS Adapter
3 Gb with Blind-Swap Cassette (FC 2055; CCIN 57CD)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 10 |
| 5278 | PCIe Dual-x4 SAS Adapter (FC
5278; CCIN 57B3)
|
1, 2, 3, 4, 5 | 5 |
| 5805 | PCIe 380 MB Cache Dual - x4 3
Gb SAS RAID Adapter (FC 5805; CCIN 574E)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 20 |
| 5901 | PCIe Dual - x4 SAS Adapter (FC
5901; CCIN 57B3)
|
1, 2, 3, 4, 5 | 20 |
| 5913 | PCIe2 1.8 GB Cache RAID SAS Tri-port
6 Gb Adapter (FC 5913; CCIN 57B5)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 16 |
| ESA1 | PCIe2 RAID SAS Adapter Dual-port
6 Gb (FC ESA1; CCIN 57B4)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 20 |
| ESA2 | PCIe2 RAID SAS Adapter Dual-port
6 Gb LP (FC ESA2; CCIN 57B4)
|
1, 2, 3, 4, 5 | 2 |
| 2893 | PCI Express 2-Line WAN with Modem
(FC 2893; CCIN 576C)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 20 |
| 2894 | PCI Express 2-Line WAN with Modem
(FC 2894; CCIN 576C)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 20 |
| EN13 | PCI Express 2-Line WAN with Modem
(FC EN13; CCIN 576C)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 20 |
| EN14 | PCI Express 2-Line WAN with Modem
(FC EN14; CCIN 576C)
|
Not supported in the system. Can be installed in a FC 5802 or 5877 expansion unit. | 20 |
| ES09 | IBM Flash Adapter 90 (PCIe2
0.9TB) (FC ES09; CCIN 578A)
|
1, 2, 3, 4, 5 | 5 |
1The adapter requires two adjacent slots. |
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Performance notes
Use this information to help determine the maximum number of adapters that can be placed in a system while still maintaining optimum performance.
Performance notes regarding GX++ channel adapters
Table 2 identifies
the slot placement priorities and the maximum number of specified
adapters that can be installed for connectivity. However, for optimum
performance, you might want to further limit the total number of high-bandwidth
and extra-high bandwidth adapters. The system supports the following
GX++ adapters feature codes (FCs):
- FC EJ0G: GX++ Dual-port 12x Channel Attach adapter
- FC EJ0H: GX++ LP 1-port PCIe2 x8 Adapter
When you are plugging FC EJ0G GX adapter, ensure that it is placed in GX++ slot 2. If this adapter is installed in GX++ slot 2, PCIe slot 6 (P1-C7) is not available to install any PCIe adapter. Also, the system power control network (SPCN) cable of this GX adapter is installed in PCIe slot 1 (P1-C2).
The FC EJ0H GX adapter
can be installed in any GX++ slot. The PCIe cable, such as FC EN05
or FC EN07, connects the FC EJ0H GX adapter and the 5888 PCIe storage
enclosure to the
system.
Note: The FC EJ0H GX adapter provides only half of the FC 5888 PCIe storage
enclosure connections
required.
The I/O enclosures, such as FC 5802 and FC 5877, are supported for the 8231-E2C or 8231-E2D system.
