Compaq AP200 manual Installing Additional Memory, Internal Components

4-15

Internal Components Continued

Identifier Component

:AGP slot

;Speaker

<Processor (The processor in your workstation may look slightly different than the one pictured.)

=Power supply

Installing Additional Memory

The workstation comes with at least 64 MB of Error Checking and Correcting (ECC ) unregistered, synchronous dynamic random access memory (SDRAM), dual inline memory modules (DIMMs) installed, and supports up to 768 MB of memory. The memory sockets on the system board can be populated with 16-, 32-, 64-, 128-, or 256-MB DIMMs.

For proper system operation, the DIMMs must be industry standard 168-pin, 100-MHz or faster unbuffered SDRAM DIMMs. The SDRAM DIMMs must support CAS Latency 2 or 3 (CL = 2 or CL = 3). They must also contain the mandatory Joint Electronic Device Engineering Council (JEDEC) Serial Presence Detect (SPD) information. DIMMs constructed with x4 SDRAM are not supported; the system will not start using unsupported DIMMs.

IMPORTANT: Do not mix registered and unregistered, or ECC and non-ECC SDRAM DIMMs. Otherwise, your system will not function properly. To upgrade to the 768 MB of memory, you must use only 256-MB unregistered ECC SDRAM DIMMs.

CAUTION: Your DIMM sockets have gold metal contacts. When upgrading your memory, it is important to use DIMMs with gold metal contacts (not tin-lead) to prevent corrosion and/or oxidation resulting from having incompatible metals in contact with each other.

Compaq Professional Workstation AP200 Reference Guide

Writer: M. Church Project: Compaq Professional Workstation AP200 Reference Guide Comments: 352620-003

File Name: E-CH04.DOC Last Saved On: 1/19/99 9:40 AM

COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED