What are Buffered and Unbuffered DIMMs?
- A buffered DIMM has extra logic chips on the module to reduce the loading
on the system address and control busses.
- All else being equal, a system designed for buffered DIMMs can have more
modules loaded into a system at one time, since the buffer chips 'absorb'
some of the load.
- The maximum number of buffered DIMMs that can be added to a system is
typically at least 8 and can go beyond 16 modules on a system.
- An unbuffered DIMM connects address and control busses directly from the
module interface to the DRAM on the module.
- Systems that use unbuffered DIMMs are typically limited to four modules.
- Typically, any system that can use either EDO or SDRAM 168 pin DIMMs
require unbuffered DIMMs.
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Copyright (©) 1997 Advantage Memory Corp.