Rambus is a new DRAM architecture and interface standard that challenges traditional main memory
designs. Direct Rambus technology is extraordinarily fast compared to older memory technologies. It transfers data
at speeds up to 800MHz over a narrow 16-bit bus called a Direct Rambus Channel. This high-speed clock rate is
possible due to a feature called "double clocked," which allows operations to occur on both the rising and falling
edges of the clock cycle. Also, each memory device on an RDRAM module provides up to 1.6 gigabytes per second of
bandwidth - twice the bandwidth available with current 100MHz SDRAM.
Most chipsets which support Rambus (Intel i840, i850, and i860) have two memory channels.
The channels must be matched exactly, which means that RIMMs must be installed in pairs on boards using these
chip sets. So, Bank A of Channel 0 must contain the exact same thing as Bank A of Channel 1, and Bank B of Channel 0
must contain the exact same thing as Bank B of Channel 1. If they do not match exactly, the board will not function.
- Highest sustained bandwidth per DRAM device
- 1.6 GB/s sustained data transfer rate
- Separate control and data buses for maximized efficiency
- Separate row and column control buses for easy scheduling and highest performance
- 32 banks: four transactions can take place simul-taneously at full bandwidth data rates
- Low latency features
- Advanced power management
- Uses Rambus Signaling Level (RSL)
- Place the computerís power switch in the "off " position and disconnect the AC power cord.
- Before touching any electronic components, make sure you first touch an unpainted, grounded metal object to discharge any static electricity stored on your clothing or body.
- Locate the memory expansion sockets on the computerís motherboard. If all the sockets are full, remove smaller capacity modules to allow room for higher capacity modules.
- The ejector tabs shown in the illustration are used to remove a module. By pushing outward on the ejector tabs, the module will pop-up from the socket and it can then be removed.
- Handle your new module(s) carefully; do not flex or bend the module(s). Always grasp the module by its edges.
- Rambus memory modules must be installed