IBM 847651U Handbook - Page 130

Working with memory modules Working with memory modules Adding system memory to your server can make programs run faster. You can increase the amount of system memory by installing options called memory modules. The maximum amount of system memory your server supports is 384 MB of unbuffered memory, or 768 MB of registered memory. The memory modules that your server uses are dual-inline memory modules (DIMMs). You can add memory to your server to increase system performance. Attention: You cannot mix registered and unbuffered DIMMs in your server. To use registered DIMMs, you must remove all unbuffered DIMMs from your server. Your server has three connectors for installing system-memory modules. Note: The following illustration is for reference only. Before you install memory, be sure to check the orientation of your server system board for the correct connector locations. To locate the memory connectors on the system board, see "System Board Illustration" on page 253. DIMM 0 DIMM 1 DIMM 2 The DIMMs that come with your server are unbuffered synchronous dynamic random-access memory (SDRAM) with error checking and correction (ECC). These memory modules have a speed of 100 MHz. You can add extra memory modules or replace existing memory modules. When installing or replacing DIMMs, follow these guidelines: Your server comes with one or more unbuffered dual-inline memory modules (DIMMs) installed. 96 Netfinity 3000 User's Handbook