INSTALLATIONS
The IB940 CPU Card supports four DDR2 memory sockets for a
maximum total memory of 4GB in DDR memory type. It supports
DDR2 533/667/800.
Basically, the system memory interface has the following features:
Supports two 64-bit wide DDR data channels
Available bandwidth up to 6.4GB/s (DDR2 800) for single-channel
mode.
Supports 256Mb, 512Mb, 1Gb DDR2 technologies.
Supports only x8, x16, DDR2 devices with four banks
Supports only unbuffered DIMMs
Supports opportunistic refresh
Up to 32 simultaneously open pages (four per row, four rows
maximum)
Installing and Removing Memory Modules
To install the DDR2 modules, locate the memory slot on the board and
perform the following steps:
1. Hold the DDR2 module so that the key of the DDR2 module align
with those on the memory slot.
2. Gently push the DDR2 module in an upright position until the clips of
the slot close to hold the DDR2 module in place when the DDR
module touches the bottom of the slot.
3. To remove the DDR2 module, press the clips with both hands.
DDR2 Module
Lock Lock
Lock Lock
IB940 User’s Manual 7