Specifications

Escala Tower PL & S, E, T System Hardware
Chapter 6: Memory Expansion Cards 5/12
9es3s1c6.doc
Rev 5.9
02/12/2003
2.2. Escala E230 and E250 (CMMG139, CMMG140)
The Escala E230 and E250 system memory is organized in memory banks made up of four memory
DIMMs. Memory banks are hosted on four memory risers connected to the planar board.
Two memory risers are available:
•
A memory riser with 1 memory DIMM connector (MBRG003).
•
A memory riser with 8 memory DIMM connectors (MBRG004).
A memory bank hosted on memory risers is made up of 1 DIMM for each memory riser (total of 4
memory DIMMs)
The maximum memory bank configuration is 512 GB.
The maximum memory configuration is 4 GB.
The Escala E230 and E250 support the following memory DIMMs:
•
SDRAM DIMM, 72 bit, 168 pin
•
VCC 3.3V
•
Access Time 10 ns (100MHz, CAS latency 2 mode)
•
Height 1.65 inch
•
Application ECC
•
LVTTL electrical interface
•
Memory Data Bus peak throughput: 5.6 GB/s
•
PC100 Intel specifications compliant.
A memory bank can be made up of DIMMs having capacity of 64 or 128 MB.
Table of the memory bank capacity
Technology DIMM Size Memory Bank
Capacity
MI
64 Mbits 64 MB 256 MB CMMG139
64 Mbits 128 MB 512 MB CMMG140