Power cords
Two power cords are required.
The Power 755 requires
System memory
•A minimum 128 GB of memory is required on the Power 755 system.
•Eight memory DIMM slots are on a processor card. The maximum system memory is 256 GB with four processor cards.
•Different system memory feature numbers may not be mixed on the same processor card. However, a system with more than one processor card may use different memory feature numbers on the same system.
•Memory must be installed in groups of one feature (two DIMMs), two features (four DIMMs), or four features (eight DIMMs) per processor card. Installation of three features (six DIMMs) is not permitted.
•It is generally recommended that memory be installed evenly across all processor cards in the system. Balancing memory across the installed processor cards allows memory access in a consistent manner and typically results in the best possible performance for your configuration. However, balancing memory fairly evenly across multiple processor cards, compared to balancing memory exactly evenly typically has a very small performance difference.
Plans for future memory upgrades should be taken into account when deciding which memory feature size to use at the time of initial system order.
Figure 1. Memory features |
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| Feature | Minimum | Maximum |
Feature | number | quantity | quantity |
8 GB 1066 MHz | 4526 | 0 | 16 |
(2 x 4 GB RDIMMs) |
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|
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16 GB 1066 MHz | 4527 | 0 | 16 |
(2 x 8 GB RDIMMs) |
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Note: The 8 GB memory feature (#4526) is planned to be available on March 16, 2010.
Drawer/tower attachment:
•EXP12S SAS DASD Expansion Drawer (#5886)
–Feature number 8340 supports one feature number 5886 drawer directly off the system unit's SAS port. EXP12S drawers are attached to a
–A system maximum of 13 is allowed.
The following list shows I/O drawers that are supported or available on the 8236 machine type and the correct interface to use for each of the drawers.
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| Order |
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Feature | Description | Status | Interface |
5886 | Exp 12S SAS |
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| Disk Drawer | Available | SAS |
Maximum number of attached I/O drawers per system:
Power 755
Feature
IBM United States Hardware Announcement
IBM is a registered trademark of International Business Machines Corporation | 24 |