Advantech AIMB-766 user manual System Memory, Memory Installation Procedures, Cache Memory

1.9System Memory

The AIMB-766 has four sockets for 240-pin dual inline memory modules (DIMMs) in two memory channels.

All these sockets use 1.8 V unbuffered double data rate synchronous DRAMs (DDR SDRAM). They are available in capacities of 256, 512 1024 and 2048 MB. The sock- ets can be filled in any combination with DIMMs of any size, giving a total memory size between 256 MB and 8 GB.

1.9.1CPU FSB and memory speed

The AIMB-766 can accept DDR2 SDRAM memory chips without parity. Also note that the AIMB-766 accepts DDR2 667/800 MHz SDRAM, and DDR2 SDRAM. The AIMB- 766 does not support ECC (error checking and correction).

1.10Memory Installation Procedures

To install DIMMs, first make sure the two handles of the DIMM socket are in the “open” position. i.e. The handles lean outward. Slowly slide the DIMM module along the plastic guides on both ends of the socket, and then press the DIMM module right down into the socket, until you hear a click. This is when the two handles have auto- matically locked the memory module into the correct position of the DIMM socket. To remove the memory module, just push both handles outward, and the memory mod- ule will be ejected by the mechanism in the socket.

1.11Cache Memory

The AIMB-766 supports a CPU with one of the following built-in full speed L2 caches: 6 MB for Core 2 Quad

4 MB for Core 2 Duo

1 MB for Pentium® Dual Core

512 KB for Celeron® D

The built-in second-level cache in the processor yields much higher performance than conventional external cache memories.

Chapter 1 Hardware Configuration

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