Table 8-1. Sample SIMM Configurations (continued)
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| SIMMs Installed in Sockets |
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Total |
| Bank 1 |
| Bank 2 |
Desired |
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Memory | J1 to J4 | J5 to J8 | J9 to J12 | J13 to J16 |
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1152 MB | 128 MB | 128 MB | 16 MB | 16 MB |
1280 MB | 32 MB | 32 MB | 128 MB | 128 MB |
1280 MB | 128 MB | 128 MB | 32 MB | 32 MB |
1536 MB | 64 MB | 64 MB | 128 MB | 128 MB |
1536 MB | 128 MB | 128 MB | 64 MB | 64 MB |
2 GB | 128 MB | 128 MB | 128 MB | 128 MB |
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Performing a Memory Upgrade
Use the following procedure to perform a memory upgrade:
1.Remove the left computer cover.
See “Removing the Computer Covers” in Chapter 7.
CAUTION: See “Protecting Against Electro- static Discharge” in the safety instructions at the front of this guide.
2.Remove the support panel.
Remove the two screws from the support panel (see Figure
3.Remove the memory module.
Hold the module by the corners where the handles are and carefully pull the module out until the edge connectors are free from the system board connector.
NOTE: Be careful not to touch components or gold edge connectors on the module.
4.Place the memory module
5.Locate the SIMM sockets into which you will install or replace SIMMs.
Figure 8-4 shows the location of the SIMM sockets on the memory module.
6.Install or replace the SIMMs as necessary to reach the desired memory total.
Follow the instructions in “Installing SIMMs” or “Removing SIMMs” later in this section, as appropriate.
7.Replace the memory module.
Hold the module by the corners with the SIMM sockets facing down. Ease the module into the cor- rect slot guides until it is touching the system board connector. Press the module carefully but firmly into the system board connector and rotate the handles closed.
NOTE: Before closing the handles, make sure the memory module is aligned with the system board connector.
8.Replace the support panel.
Align the panel so that the two tabs are to the left. Fit the tabs into the two slots on the chassis back and swing the panel closed. Replace the two screws removed in step 2.
Installing System Board Options |