Memory accessories - IBM System x3500

Content

• See ServerProven for memory compatibility
• See Configuration and Options Guide (COG) for all parts that are configurable with this system

Notes:

• The System x3500 servers support a maximum of 48 GB of system memory when you add a 4 GB memory DIMM in each of the twelve DIMM slots.
• All supported system memory is addressable through direct memory access (DMA).
• The x3500 server supports 512 MB, 1 GB, 2 GB, and 4 GB which are synchronized with processor FSB bandwidth (Bus speeds run at 266 MHz or 166 MHz, but data is clocked on four edges, yielding a transfer rate of 667 MHz.) DDR2 ECC SDRAM DIMMs.
• DIMMs must be installed in matched pairs.
• Chipkill distributes information covered by error correction coding across separate memory chips, so if any of the chips fail, the data can still be reconstructed from the remaining chips, and the system can continue running.
• Increased processor performance coupled with DDR memory enables you to retrieve and process information faster and more efficiently. DDR memory executes twice the number of operations per cycle than traditional SDRAM memory, effectively doubling the data exchange rate between memory and processors. DDR2 memory stands for double data rate, which means up to twice the data is transferred compared to SDRAM in the same clock cycle. Actual data transfer is at 333 MHz.
• DDR2 ECC DIMMs, combined with an integrated ECC memory controller, correct many soft and hard single-bit memory errors, and minimize disruption of service to LAN clients.