INSTALLATIONS
ATX Power Installation
The system power is provided to the CPU card with the CN1 and J7 ATX power connectors. Please note that the J7 external ATX power connector should be connected to the backplane for IB850 to function. J7 is a
Installing the Memory
The IB850 CPU card supports two DDR memory sockets for a maximum total memory of 2GB in DDR memory type. You can install unbuffered DDR DIMMs with ECC function. It supports DDR266 when installed with CPUs that have clock speeds of 400MHz. It supports DDR266/333 when installed with CPUs that have clock speeds of 533MHz. It supports DDR266/333/400 when installed with CPUs that have clock speeds of 800MHz. The board provides dual channel functionality for its DIMM slots. DIMM1 is for one channel and DIMM2 is for the other channel. Enabling dual channels can increase data access rates.
Basically, the system memory interface has the following features: Supports two
Available bandwidth up to 3.2GB/s (DDR400) for
Supports ECC/
Supports 128MB, 256MB, 512MB DDR technologies. Supports only x8, x16, DDR devices with four banks Registered DIMMs not supported
Supports opportunistic refresh
Up to 16 simultaneously open pages (four per row, four rows maximum)
IB850 User’s Manual | 9 |
