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Adding or changing system memory
There are 8 DIMM slots for system memory. Each IBM PowerXCell 8i processor
has two memory channels and there are two DIMM slots per memory channel.
You can use VLP DDR2 1 GB, 2 GB, or 4 GB memory modules. The maximum
memory configuration has a 4 GB memory module in each DIMM slot which
provides 16 GB to each processor and 32 GB in total.
Figure 14. System memory DIMM slot locations
As shown in Figure 14, each processor has a channel 0 and a channel 1, with a
pair of DIMM slots for each channel. To use a channel, you must populate both
DIMM slots that belong to the channel.
All DIMM configuration listed in Table 2 are supported by the latest firmware level.
Table 2. Supported DIMM configurations
IBM PowerXCell 8i-0
Channel 0
Channel 1
Slot 1
Slot 2
Slot 3
1 GB
1 GB
1 GB
1 GB
1 GB
1 GB
2 GB
2 GB
2 GB
2 GB
2 GB
2 GB
4 GB
4 GB
4 GB
4 GB
4 GB
4 GB
1 GB
1 GB
1 GB
1 GB
1 GB
1 GB
1 GB
1 GB
1 GB
2 GB
2 GB
2 GB
2 GB
2 GB
2 GB
2 GB
2 GB
2 GB
4 GB
4 GB
4 GB
DIMM 8 slot
DIMM 7 slot
DIMM 6 slot
DIMM 5 slot
DIMM 4 slot
DIMM 3 slot
DIMM 2 slot
DIMM 1 slot
IBM PowerXCell 8i-1
Channel 0
Slot 4
Slot 5
Slot 6
1 GB
1 GB
2 GB
2 GB
4 GB
4 GB
1 GB
1 GB
2 GB
2 GB
4 GB
4 GB
1 GB
1 GB
2 GB
2 GB
4 GB
4 GB
1 GB
1 GB
1 GB
1 GB
2 GB
2 GB
1 GB
4 GB
4 GB
2 GB
1 GB
1 GB
2 GB
2 GB
2 GB
2 GB
4 GB
4 GB
4 GB
1 GB
1 GB
Chapter 4. Installing and removing replaceable units
Processor 1 channel 1
Processor 1 channel 0
Processor 0 channel 1
Processor 0 channel 0
Channel 1
Slot 7
Slot 8
1 GB
1 GB
2 GB
2 GB
4 GB
4 GB
1 GB
1 GB
2 GB
2 GB
4 GB
4 GB
1 GB
1 GB
39
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