Dell SC440 owner manual Removing a Memory Module, Installing a Memory Module

The following components require address space:

•System ROM

•Advanced Programmable Interrupt Controllers (APIC)

•Integrated PCI devices (such as NICs) and SCSI controllers

•PCI expansion cards

At start-up, the BIOS identifies the components that require address space. The BIOS dynamically calculates the amount of reserved address space required. The BIOS then subtracts the reserved address space from 4 GB to determine the amount of usable space.

•If the total installed system memory is less than the usable space, all installed system memory is available for use only by the operating system.

•If the total installed system memory is equal to or greater than the usable address space, a small portion of installed memory is available for use by the operating system.

Removing a Memory Module

CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.

1Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.

2Open the system. See "Opening the System" on page 41.

3Press out on the securing clip at each end of the memory module connector. See Figure 3-14.

4Grasp the memory module and pull it out of the connector.

If the module is difficult to remove, gently move the module back and forth to remove it from the connector.

Installing a Memory Module

CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.

1Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.

2Open the system. See "Opening the System" on page 41.

3Press on the securing clip at each end of the memory module connector. See Figure 3-14.

4Align the memory module’s edge connector with the alignment key in the connector.

The memory module connector has an alignment key that allows the memory module to be installed in the connector in only one way.

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Installing System Components