Acer AR160 F1 - Manual (Page 65)

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Notes: 1. Place DIMMs in “X” location.
2. DIMM population must correspond to the above tables.
3. DIMM modules support 1 GB, 2 GB, 4 GB and 8 GB
DIMMS.
4. The size of each DIMM must be the same across the
configuration.
5. Do not mix UDIMMs with RDIMMs.
Memory identification
Generally, there are some memory information printed on the label of
the DIMM module. Different vendors may have different formats but
the convention is usually like this:
Item Description
Density 1GB, 2GB,4GB,8GB.
Intel Xeon Processor 5500 Series CPU supports DIMM organized by
1Gb or 2Gb DRAM chips.
Rank 1R = Single Rank
2R = Dual Rank
4R = Quad Rank
Note: If quad rank DIMM is used, a maximum of only two DIMMs per
channel can be supported.
Bit
Organization This platform supports x4 and x8.
Note: It is not recommend to mix DIMMs with different bit
organizations in one system.
Speed PC3 - 6400 => DDR3- 800
PC3 - 8500 => DDR3- 1066
PC3 - 10600 => DDR3- 1333
PC3 - 12800 => DDR3- 1600
Density
Rank
Bit organization
Speed