iSeries 9406 Memory, #3020 4GB Main Storage 870/890
The #3020 4GB Main Storage Card DRAM PSIMM is used in the Models 870 and 890.
The Model 870: There are eight main storage card sockets on the backplane, but a maximum of four main storage cards can be placed in the system. main storage cards are installed according to the following rules:- Main storage cards are installed in pairs of equal capacity.
- Pairs of main storage cards must plug into memory card slots under the same MCM (slots 0 and 1, slots 2 and 3).
- Mixed main storage cards must be of the adjacent capacity. (4 GB with 8 GB is allowed, and 4 GB with 16 GB is not allowed.)
- Cannot mix main storage cards of more than two capacities. (4 GB with 8 GB is allowed, and 4 GB with both 8 GB and 16 GB is not allowed.)
- Mixed main storage cards can be in any order.
For the Model 870: Eight main storage card sockets exist on the backplane of the Model 870. A maximum of four main storage cards can be placed in the system:
- #3015: 8GB Main Storage Card DRAM PSIMM (Inner)
- #3017: 32GB Main Storage Card DRAM PSIMM (Inner)
- #3020: 4GB Main Storage Card DRAM PSIMM (Inner)
- #3035: 16GB Main Storage Card DRAM PSIMM (Inner)
The main storage cards are installed according to the following rules:
- Installed in pairs of equal capacity
- Pairs must plug into memory slots under the same
- Multi-Chip Modules (MCMs) (ie: Slots 0/1, Slots 2/3).
- Mixed storage cards must be of an adjacent incremental capacity (ie: 4GB and 8GB are allowed, but 4GB and 16GB are not allowed).
- When mixed storage cards are used, lower capacity need not precede higher capacity.
For the Model 890: All main storage cards must be added in Pairs of the same capacity and technology. The slots are arranged in groups of Inner and Outer slots.
- 24-way processors have 6 memory slots (4 Inner and 2 Outer)
- 32-way processors have 8 memory slots (4 Inner and 4 Outer)
- Inner Slots are slots 0, 1, 2, 3
- Outer Slots are slots 4, 5, 6, 7
- Inner slots are filled first
Processor n-Way Inner Outer Total
- #0197: 24-way 4 2 6
- #0198: 32-way 4 4 8
- #2487: 16/24-way 4 2 6
- #2488: 24/32-way 4 4 8
- #2497: 16/24-way 4 2 6
- #2498: 24/32-way 4 4 8
The following Main Storage Cards are availabale:
- #3015: 8GB Main Storage Card DRAM PSIMM (Inner)
- #3016: 8GB Main Storage Card DRAM PSIMM (Outer)
- #3017: 32GB Main Storage Card DRAM PSIMM (Inner)
- #3018: 32GB Main Storage Card DRAM PSIMM (Outer)
- #3020: 4GB Main Storage Card DRAM PSIMM (Inner)
- #3021: 4GB Main Storage Card DRAM PSIMM (Outer)
- #3035: 16GB Main Storage Card DRAM PSIMM (Inner)
- #3036: 16GB Main Storage Card DRAM PSIMM (Outer)
The main storage cards are installed according to the following rules:
- Main storage cards are installed in pairs of equal capacity.
- Pairs must plug into slots under the same MCM (ie: Slots 0/1, Slots 2/3, Slots 4/5, Slots 6/7).
- Mixed storage cards must be of an adjacent incremental capacity. (ie: 4GB and 8GB are allowed, but 4GB and 16GB are not allowed)
- When mixed storage cards are used, lower capacity need not precede higher capacity.
- Maximum of two card sizes on each Model 890.
Important: Fill all slots. An exception is allowed for 16GB on a 24-way processor and for 24GB on a 32-way processor.
Prerequisite: V5R2 or higher