Memory - Intergraph InterServe 9000 System Reference Manual

Memory

Main memory resides on an add-in board, called a memory module, designed specifically for the
InterServe 9000. The memory module contains slots for 16 dual in-line memory modules
(DIMMs), each of which must be at least 32 MB, and is attached to the baseboard through a 242-
pin connector. Memory amounts from 128 MB to 4 GB of DIMM are supported, with a 72-bit
four-way-interleaved pathway to main memory, which is also located on the module. The 16 slots
are divided into four banks of four slots each, labeled A through D. These banks support 4:1
interleaving. The memory controller supports EDO DRAMs. The ECC used for the memory
module is capable of correcting single-bit errors (SBEs) and detecting 100 percent of double-bit
errors over one code word. Nibble error detection is also provided.
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Figure 7. Memory Module DIMM Installation Sequence
A. Memory bank A (install first)
B. Memory bank B (install second)
C. Memory bank C (install third)
D. Memory bank D (install last)
E. Memory module connector
E
D
C
B
A
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