IBM 704 manual Installing Memory-Module Kits

Installing Memory-Module Kits

Installing Memory-Module Kits

Adding memory to your server is an easy way to make programs run faster. You can increase the amount of memory in your server by installing options called memory-module kits. Your server uses 72-pin, parity, single-inline memory modules (SIMMs).

You install memory-module kits into connectors on a memory board inside your server. The memory board contains two banks (1 and 2), arranged in 16 SIMM sockets. To add memory to your server, you can install additional memory-module kits on this memory board. You can install a maximum of 2 GB of memory in your server, with 128 MB memory modules in all 16 sockets (connectors J1

through J16).

Each bank contains connectors for eight memory modules. As a minimum, your server requires 16 MB memory modules in connectors J1, J2, J3, and J4 in bank 1. To ensure proper server operation, you must maintain 4, 8, or 16 memory modules in your server. The memory-module kit sizes available for your server are 16 MB, 32 MB, 64 MB, and 128 MB. When you install 16 MB memory modules in a bank, all of the memory modules in that bank must be the same size. However, you can install 32 MB memory modules in the other bank. If you install 64 MB or 128 MB memory modules in one bank, and you want to install memory modules in the other bank, those memory modules must also be 64 MB or 128 MB memory modules. The correct speed for these kits is 60 ns.

If additional memory is required, fill bank 1 first; then, continue with bank 2. Bank 1 must be fully populated before you can install memory modules in bank 2. If you need to install kits of a different size in bank 1, remove the preinstalled kits as described in “Removing Memory-Module Kits” on page 124, and install the other kits as described in this section.

Table 2 on page 114 shows the memory configurations available for your server. If you plan to install two different sizes of memory-module kits on the memory board, use Table 2 as a guide.

Chapter 4. Installing Options 113