Asus NR-LSR 2.5.2 Memory configurations, Memory configuration table

2.5.2 Memory configurations

The motherboard supports system memory of up to 8GB in a two-way interleaved configuration. As a rule, this configuration requires that you install identical DDR DIMMs (exactly the same type and size) in pairs. For example, if you installed a 512MB module into DDRA1, you must install the same type of 512MB module into DDRB1. The same rule applies to pair DDRA2/DDRB2.

An exception to the above rule allows you to install one DDR DIMM into DDRA1 socket (the socket farthest from the edge of the motherboard). Installing a single DIMM into any other socket would not work.

The following table lists the DIMM socket pairs and the memory modules that you can install.

Memory configuration table

DIMM Socket	184-pin ECC DDR DIMM		Total Memory
DDRA1	SDRAM 128MB, 256MB, 512MB, 1GB, 2GB		x1
DDRB1	SDRAM 128MB, 256MB, 512MB, 1GB, 2GB		x1
DDRA2	SDRAM 128MB, 256MB, 512MB, 1GB, 2GB		x1
DDRB2	SDRAM 128MB, 256MB, 512MB, 1GB, 2GB		x1
Total System Memory (Max. 8GB)		=

The system chipset only supports PC2100/1600 registered ECC DIMMs. Make sure to use only the specified DIMM types for stable system operation.

ASUS NR-LSR motherboard user guide 2-9