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Upgrading the system memory
This section includes instructions for removing and installing a
memory module.
The Server Boards Altos G520 each provides four DDR266 / DDR333
DIMM sites in two DIMM banks. The maximum memory capacity is 8GB
for either DDR266 or DDR333 memory. Memory DIMM technologies
supported are: 128MB, 256MB, 512MB, 1 GB and 2 GB.
The minimum memory configuration is one DIMM, installed in DIMM
socket 1B (the socket farthest from the processors). However, for
optimum performance and dual-channel interleave operation, a
minimum of two DIMMs should be installed. DIMMs on channel A are
paired with DIMMs on channel B to configure 2-way interleaving.
Both DIMMS in Bank 1 (DIMM1B and DIMM1A) must be populated
before any DIMMs are installed in Bank 2 (DIMM2B and DIMM2A).
Bank 2 must be populated in pairs.
Both DIMMs in a bank must be identical (same manufacturer, CAS
latency, number of rows, columns and devices, timing parameters etc.).
Although DIMMs within a bank must be identical, the BIOS supports
various DIMM sizes and configurations allowing the banks of memory
to be different.
Note:
Dual-channel memory requires symmetrical memory
modules using the same density (e.g. 256MB,512MB), bus width
(e.g. x8 ,x16) and granule technology (e.g. 256M-bit, 512M-bit)
The mixing of DDR266 and DDR333 memory is supported on the Server
Boards Altos G520. However, when mixing DIMM types, DDR333 will
be treated as DDR266.
Warning!
Functionality issues may be encountered if mixed
memory types are installed on the same server board. DIMM
modules of identical type, banking and stacking technology, and
vendor should be installed in the Altos G520.
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Summary of Contents for Altos G520 series
Page 1: ...Acer Altos G520 series User s guide ...
Page 11: ...1 System tour ...
Page 29: ...19 2 SATA cable connector 3 HDD backplane power connector 10pin Label Description ...
Page 30: ...1 System tour 20 ...
Page 31: ...2 System setup ...
Page 44: ...2 System setup 34 ...
Page 45: ...3 Upgrading the system ...
Page 79: ...4 BIOS setup ...
Page 131: ...Appendix A Troubleshooting ...
Page 145: ...Appendix B ASM Quick Installation Guide ...
Page 146: ...This appendix shows you how to install the ASM software package ...
Page 149: ...Appendix C Altos G520 Rack Installation Guide ...
Page 150: ...This appendix shows you how to install the optional rack mount kit for Acer Altos G520 ...
Page 157: ...Appendix D SATA RAID Configuration ...
Page 158: ...This appendix shows you how to create SATA RAID ...
Page 162: ...Appendix D SATA RAID Configuration 152 ...
Page 163: ...Appendix E RAID Configuration ...
Page 164: ...This appendix shows you how to create RAID ...
Page 169: ...Appendix F Diagnostic Code Checkpoints ...