Tested Memory

The Intel
®
Server Boards S5000PSL, S5000XSL, and S5000XVN, Intel
®
Server Board S5000PSLROMB RAID
Controller, and Intel
®
Storage System SSR212MC2
Memory Sub-system
The following table lists the current supported memory types:
FBDIMM-533 CL4 & FBDIMM-667 CL5 Memory Matrix
DIMM
Capacity
DIMM
Organization
SDRAM
Density
SDRAM
Organization
# SDRAM Devices
# Address bits
Row/Bank/Column
# of Ranks
512MB 64M x72 512Mbit 64M x 8 9 14/10/2 1
1GB 128M x 72 512Mbit 64M x 8 18 14/10/2 2
1GB 128M x 72 512Mbit 128M x 4 18 14/11/2 1
1GB 128M x 72 512Mbit 128M x 8 9 14/10/3 1
2GB 256M x72 512Mbit 128M x 4 36 14/11/2 2
2GB 256M x72 1Gbit 256M x 4 18 14/11/3 1
2GB 256M x72 1Gbit 128M x 8 18 14/10/3 2
4GB 512M x72 1Gbit 256M x 4 36 14/11/3 2
4GB 512M x 72 2Gbit 512M x 4 18 13/11/2 2
8GB 1Gx72 2Gbit 512M x 4 36 15/3/11 2
8GB 1Gx72 2Gbit Stacked 1G x 4 18 15/3/11 2
2.2 Acoustic versus Performance Mode for System Fan Control
2.2.1 Memory Sizing and Configuration
The BIOS supports various memory module sizes and configurations. These combinations of sizes and
configurations are valid only for FBDIMMs approved by Intel. The BIOS reads the Serial Presence Detect
(SPD) SEEPROMs on each installed memory module to determine the size and timing characteristics of
the installed memory modules (FBDIMMs). The memory-sizing algorithm then determines the cumulative
size of each row of FBDIMMs. The BIOS programs the memory controller in the chipset accordingly, such
that the range of memory accessible from the processor is mapped into the correct FBDIMM, or set of
FBDIMMs.
2.2.2 Performance Configuration in BIOS Setup (Default)
In performance mode, the system will utilize fan control over memory throttling to provide primary system
cooling. This mode results in a moderately louder system than acoustic mode due to more aggressive
fan speed control settings. Independent of the system’s temperature level, the fan speed in performance
mode will be slightly higher than the fan speed in acoustic mode. Additionally, at a given temperature,
the increased airflow from this cooling option diminishes the occurrence of memory throttling. This
enables high-power DIMMs (typically DRx4) to operate at their maximum capacity since these DIMMs
produce a higher thermal output from their higher bandwidth.
Note: this is the recommended mode when using DRx4 memory modules.
2.2.3 Acoustic Configuration in BIOS Setup
In acoustic mode, the system temperature is maintained primarily by memory throttling, so the utilization
of high fan speeds is reduced. As a result, this mode produces a quieter system because the fans will
run at a lower speed if the system does not require additional cooling. However, the memory throttling