Model 7047-185 (IntelliStation POWER 185 ) and 7037-A50 (p5 185) adapter placement

Some adapters must be placed in specific PCI slots to function correctly or perform optimally. Use this information to determine where to install PCI adapters.

System unit back view

Figure 1. System unit back view with location codes for PCI slots.

PCI slot descriptions

The model 7047-185 or 7037-A50 has 4 PCI-X slots, and 1 PCI slot, and supports a total of 5 PCI/PCI-X adapters. The following table describes the PCI/PCI-X slots:

PHB0			PHB1	PHB2		PHB3	PHB4
Slot 1 (P1-C5)	Integrated IDE	Integrated USB (2)	Slot 2 (P1-C6)	Integrated Dual 1 Gb Ethernet	Integrated SCSI U320	Slot 3 (P1-C7)	Slot 4 (P1-C8)	Slot 5 (P1-C9)
Short			Long	Integrated Dual 1 Gb Ethernet	Integrated SCSI U320	Long	Long	Long
32-bit 3.3V, 33 MHz			64-bit 3.3V, 133 MHz	100 MHz	100 MHz	64-bit 3.3V, 133 MHz	64-bit 3.3V, 100 MHz	64-bit 3.3V, 100 or 133* MHz

* Slot 5 is capable of 133 MHz only if slot 4 is empty. If slot 4 is occupied, slot 5 is capable of 100 MHz

PCI Host Bridge (PHB) descriptions

PHB0: South bridge
PHB1: Upper HyperTransport Tunnel bridge A
PHB2: Upper HyperTransport Tunnel bridge B
PHB3: Lower HyperTransport Tunnel bridge B
PHB4: Lower HyperTransport Tunnel bridge A

Recommended system unit slot placement and maximum number of adapters

See the following table to identify the recommended system unit slot placement and maximum number of specified adapters recommended. For more information about the adapters that are listed, see IBM System p5 and eServer p5 PCI and PCI-X adapters.

Feature code	Base unit slot priority	Maximum number of adapters allowed
Feature code	Base unit slot priority	7037-A50	7047-185
2842 ¹	2, 3	NA	2
2843 ¹	2	NA	1
1954 ^*	2, 3	2	2
5740 ^*	2, 3	2	2
1984 ^*	2, 3, 5/4	3	3
5706 ^*	2, 3, 5/4	3	3
5707 ^*	2, 3, 5/4	3	3
1983 ^*	2, 3, 5/4	3	3
1978 ^*	2, 3, 5, 4	4	4
1979 ^*	2, 3, 5, 4	4	4
5700 ^*	2, 3, 5, 4	4	4
5701^*	2, 3, 5, 4	4	4
5759^**	2, 3, 5, 4	3	3
1910^**	2, 3, 5, 4	3	3
1905^*	2, 3, 5, 4	4	4
5758^*	2, 3, 5, 4	4	4
1986 ^*	2, 3, 5, 4	3	3
1987^*	2, 3, 5, 4	3	3
5713 ^*	2, 3, 5, 4	3	3
5714^*	2, 3, 5, 4	3	3
1977 ^*	2, 3, 5, 4	3	1
5716 ^*	2, 3, 5, 4	3	1
1912^*	2, 3, 5, 4, 1	4	4
5736^*	2, 3, 5, 4, 1	4	4
1913^*	2, 3, 5, 4	4	4
5737^*	2, 3, 5, 4	4	4
1980	2, 3, 4, 5	2	4
2849	2, 3, 4, 5	2	4
2947	4, 5, 3, 2	3	3
5723	1, 4, 5, 3, 2	2	2
2943	1, 4, 5, 3, 2	2	2
^*Extra-high bandwidth (EHB) adapter. See the Performance notes before installing this adapter. ^High bandwidth (HB) adapter. See the Performance notes before installing this adapter. ¹ This feature is only for the 7047-185

Performance notes (for optimum performance)

System unit information:

No more than three EHB adapters can be placed in the system. If an EHB adapter is placed in the system, it must be the only EHB or HB adapter attached to the PHB it uses.
No more than four HB adapters can be placed in the system
No more than three Gb Ethernet ports per PHB.
No more than three 1 Gb Ethernet ports per one CPU in a system. More Ethernet adapters can be added for connectivity.
If an adapter lists slot 5/4, this indicates the adapter can go in slot 5 or 4, but not both 5 and 4.

Model 7047-185 (IntelliStation® POWER® 185 ) and 7037-A50 (p5 185) adapter placement

PCI slot descriptions

Recommended system unit slot placement and maximum number of adapters