5486m890.fm Draft Document for Review October 18, 2004
244 IBM Eserver i5 and iSeries System Handbook
All main storage cards on the Model 890 must be added in pairs of the same
capacity and technology. Six slots are available for main storage cards in the
#2487, #2497 and #0197 processors. Eight slots are available for main storage
cards in the #2488, #2498, #2499 and #0198 processors. The slots are arranged
in groups of “inner” and “outer” slots. The 24-way has four inner slots and two
outer slots. The 32-way has four inner and four outer slots. Inner slots are filled
first.
The main storage cards are installed according to the following rules:
Main storage cards are installed in pairs of equal capacity.
The pairs of main storage cards must plug into slots under the same MCM
(slots 0 and 1, slots 2 and 3, slots 4 and 5, slots 6 and 7).
Mixed memory pairs must be adjacent capacities (4 GB with 8 GB is allowed,
4 GB with 16 GB is not allowed)
.
Maximum of two card sizes on each Model 890.
The following table shows the allowable main storage capacities in MB for the
Model 890 processors.
Important: Fill all slots. An exception is allowed for 16 GB on a 24-way
processor and for 24 GB on a 32-way processor.
Processor
Memory increment
#2497 #2498/#2499
8 GB Y * Y *
16 GB Y Y *
24 GB Y Y
32 GB Y Y
40 GB Y Y
48 GB Y Y
56 GB - Y
64 GB Y Y
80 GB Y Y
98 GB Y Y
112 GB - Y
* Not recommended for most configurations.
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