Gateway 9715 Installing and removing memory boards, Memory, Memory hot add, Memory hot replace

Memory

Memory

Your server has four PCI ×16 connectors on the system board for memory boards. Each memory board has sockets for four DIMMs and supports two DDR2 channels (with two DIMMs per channel). Memory boards support both single-rank and double-rank, registered DIMMs. One to four memory boards can be installed.

Installing and removing memory boards

Memory boards can be configured in either redundant or non-redundant configurations. Memory boards configured using RAID or mirroring are considered redundant. If a memory or memory board fault occurs on a memory board that is redundantly configured, the board containing the fault can be removed, and the board or DIMM replaced, while the system is on. Memory boards that are not redundantly configured (including boards that are configured with spare memory) must not be removed while the system is on.

Do not attempt to hot replace or hot add a memory board in a

Caution non-redundant configuration. If your server is not configured for Maximum Compatibility, Memory RAID, or Memory Mirroring in the BIOS setup utility, you must turn off your server before removing or installing any memory board or DIMMs.

Memory board air baffles are installed in memory slots without

Caution memory boards. These air baffles must be removed to install a memory board. To maintain the correct airflow in your server and prevent overheating, if you intend to remove a memory board from your server and not replace it immediately, install a memory board air baffle in the empty slot.

The following memory board replacement options are available to this server:

■Memory hot replace - A failed memory board can be replaced while the system is on only if its in a RAID or Mirrored configuration. The system will test, initialize, and rebuild the data on the memory board, then include the board in the system memory configuration. The replacement is transparent to the operating system. For additional information, see “Hot removal and insertion of memory boards” on page 87.

■Memory hot add - You can increase the memory capacity of the system while the operating system is active only if its in a RAID or Mirrored configuration. Memory can be removed and replaced on only one memory board at a time and the memory board must be replaced before attempting to remove another board. If your server is configured for Maximum Compatibility, a new memory board can be added to an empty slot. The system will test and initialize the new memory, then inform the operating system. For additional information, see “Hot removal and insertion of memory boards” on page 87.