OptiPlex 580 Technical Guidebook
Page 13
Memory
Your computer supports a maximum of 16 GB of memory when you use four 4-GB DIMMs; however, 32-bit operating systems, such
as the 32-bit version of Microsoft® Windows® XP, can only use a maximum of 4 GB of address space. Moreover, certain components
within the computer require address space in the 4GB range. Any address space reserved for these components cannot be used by
computer memory; therefore, the amount of memory available to the operating system is less than 4GB.
NOTE: The entire 16-GB memory range is available to 64-bit operating systems.
Memory modules should be installed in pairs of matched memory size, speed, and technology. If the memory modules are not
installed in matched pairs, the computer will continue to operate, but with a slight reduction in performance.
MT DT SFF
Type: DDR3 Synch DRAM Non-ECC Memory
DIMM Slots
4 4 4
DIMM Capacities
Up to 16GB
Up to 16GB
Up to 16GB
Minimum Memory
1GB 1GB 1GB
Maximum Memory with 1066MHz speed memory
16GB
1
16GB
1
16GB
1
Configurations:
1066MHz Memory configurations
16GB
1
DDR3 Non-ECC SDRAM, 1066MHz, (4 DIMM)
X X X
8GB
1
DDR3 Non-ECC SDRAM, 1066MHz, (4 DIMM)
X X X
8GB
1
DDR3 Non-ECC SDRAM, 1066MHz, (2 DIMM)
X X X
4GB
1
DDR3 Non-ECC SDRAM, 1066MHz, (4 DIMM)
X X X
4GB
1
DDR3 Non-ECC SDRAM, 1066MHz, (2 DIMM)
X X X
4GB
1
DDR3 Non-ECC SDRAM, 1066MHz, (1 DIMM)
X X X
3GB DDR3 Non-ECC SDRAM, 1066MHz, (3 DIMM)
X
X
X
2GB DDR3 Non-ECC SDRAM, 1066MHz, (2 DIMM)
X
X
X
2GB DDR3 Non-ECC SDRAM, 1066MHz, (1 DIMM)
X
X
X
1GB DDR3 Non-ECC SDRAM, 1066MHz, (1 DIMM)
X
X
X
1
The total amount of available memory will be less than 4GB. The amount less depends on the actual system configuration. To fully utilize 4GB
or more of memory requires a 64-bit enabled processor and 64-bit operating system.
