Dell OPTIPLEX 740 - Memory

VERSION 1.0 10
DELL™ OPTIPLEX™ 740 TECHNICAL GUIDE
10
MEMory
Your computer supports a maximum of 8 GB of memory when you use four 2 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 4 GB 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 4 GB.
The entire 8 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
DDR2 Synch DRAM Non-ECC Memory 667 MHz or 800 MHz speeds
DIMM Slots
4 4 4
DIMM Capacities
Up to 2 GB Up to 2 GB Up to 2 GB
Minimum Memory
512 MB 512 MB 512 MB
Maximum Memory with 667 MHz Speed Memory
8 GB
2
8 GB
2
8 GB
2
Maximum Memory with 800 MHz Speed Memory
8 GB
2
8 GB
2
8 GB
2
Configurations:
800 MHz Memory Configurations
4 GB
2
DDR2 Non-ECC SDRAM, 800 MHz, (4 DIMM)
✓ ✓ ✓
2 GB DDR2 Non-ECC SDRAM, 800 MHz, (2 DIMM)
✓ ✓ ✓
1 GB DDR2 Non-ECC SDRAM, 800 MHz, (1 DIMM)
✓ ✓ ✓
667 MHz Memory Configurations
8 GB
2
DDR2 Non-ECC SDRAM, 667 MHz, (4 DIMM)
✓ ✓ ✓
4 GB
2
DDR2 Non-ECC SDRAM, 667 MHz, (2 DIMM)
✓ ✓ ✓
4 GB DDR2 Non-ECC SDRAM, 667 MHz, (4 DIMM)
✓ ✓ ✓
2 GB DDR2 Non-ECC SDRAM, 667 MHz, (4 DIMM)
✓ ✓ ✓
2 GB DDR2 Non-ECC SDRAM, 667 MHz, (2 DIMM)
✓ ✓ ✓
1 GB DDR2 Non-ECC SDRAM, 667 MHz, (2 DIMM)
✓ ✓ ✓
1 GB DDR2 Non-ECC SDRAM, 667 MHz, (1 DIMM)
✓ ✓ ✓
512 MB DDR2 Non-ECC SDRAM, 667 MHz, (1 DIMM)
✓ ✓ ✓
2
The total amount of available memory will be less than 4 GB. The amount less depends on the actual system conguration. To fully utilize 4 GB or more of memory
requires a 64-bit enabled processor and 64-bit operating system.