Dell OptiPlex DDR3 Memory Compatibility Guide
Summary: Reference the DDR3 Memory Compatibility Guide for the Dell OptiPlex series.
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Instructions
Table of Contents:
1. Memory Speeds
Some confusion has been created due to the difference in the listings for speed ("MHz"), and the way memory is described from a sales standpoint ("personal computer XXXXXX"). The listings below should resolve any confusion.
| PC3-6400 | 800 MHz |
| PC3-8500 | 1066 MHz |
| PC3-10666 | 1333 MHz |
| PC3-12800 | 1600 MHz |
| PC3-14900 | 1866 MHz |
| PC3-17000 | 2133 MHz |
Only showing 4 GB?
To fully use 4 GB or more of memory, require a 64-bit enabled processor and 64-bit operating system. With 32-bit operating system, the total amount of available memory will be less than 4 GB. The amount less depends on the computer configuration. See the following Microsoft article: Memory Limits for Windows Releases 
2. Model Compatibility Matrix
NOTE: Best practice is to install memory 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.
NOTE: DDR3 and DDR3L
Below memory compatibility will be DDR3 unless stated otherwise. (example: DDR3L)
DDR3 is not backward-compatible with DDR2.
DDR3 and DDR3L are socket compatible, however, It is NOT compatible with computers using 4th Generation Intel (Haswell) processors, which exclusively support 1.35 V operation for memory.
Example:
System will shut down early in POST with a specific error code or beep code. Technical Support must verify that the right memory is used on these computers to prevent unnecessary dispatches.
Below memory compatibility will be DDR3 unless stated otherwise. (example: DDR3L)
DDR3 is not backward-compatible with DDR2.
DDR3 and DDR3L are socket compatible, however, It is NOT compatible with computers using 4th Generation Intel (Haswell) processors, which exclusively support 1.35 V operation for memory.
Example:
System will shut down early in POST with a specific error code or beep code. Technical Support must verify that the right memory is used on these computers to prevent unnecessary dispatches.
For older legacy computers not listed below, check your computer manual for more information about hardware compatibility. https://www.dell.com/support/manuals/
| Model | Dimm Slots | Max Memory | Memory Compatibility |
|---|---|---|---|
| OptiPlex 3010 (MT, DT, SSF, USFF) | 2 | 8 Gb | 1333/1600MHz |
| OptiPlex 7010 (MT, DT, SFF) | 4 | 16 Gb | 1333/1600MHz |
| OptiPlex 7010 (USFF) | 2 | 16 Gb | 1333/1600MHz |
| OptiPlex 9010 All-In-One | 2 | 16 Gb | 1333/1600MHz |
| OptiPlex 9010 (MT, DT, SFF) | 4 | 32 Gb | 1333/1600MHz |
| OptiPlex 9010 (USFF) | 2 | 16 Gb | 1333/1600MHz |
| OptiPlex 9020 (MT, SFF) | 4 | 32 Gb | 1600 MHz (DDR3 Non-ECC) |
| OptiPlex 9020 (USFF Micro) | 2 | 16 Gb | 1600 MHz (DDR3) |
| OptiPlex 3020 (USFF Micro) | 2 | 16 Gb | 1600 MHz (DDR3) |
| OptiPlex XE2 (MT, SFF) | 4 | 32 Gb | 1600 MHz |
| OptiPlex 3011 All-In-One | 2 | 8 Gb | 1333/1600MHz |
| OptiPlex 9020 All-In-One | 2 | 16 Gb | 1333/1600MHz (DDR3L memory only) |
| OptiPlex 790 | 4 | 16 Gb | 1333 MHz |
| OptiPlex 3030 All-In-One | 2 | 16 Gb | 1600 MHz (DDR3L memory Only) |
| OptiPlex 3050 | 2 | 16 Gb | 2133 MHz* (DDR4) (*with Intel 6th Gen CPUs or 7th Gen Celeron dual core CPU) |
| OptiPlex 7020 (MT and SFF) | 4 | 16 Gb | 1600 MHz (DDR3/DDR3L Non-ECC) |
| OptiPlex 9030 All-In-One | 2 | 16 Gb | 1600 MHz |
| OptiPlex 7040 (Micro) | 2 | 16 Gb | 2133 MHz (DDR4 Synch DRAM)) |
| OptiPlex 7040 (SFF, MT) | 4 | 64 Gb | 2133 MHz (DDR4) |
| OptiPlex 5040 (MT) | 4 | 16 Gb | 1600 MHz (DDR3L memory only) |
| OptiPlex 5040 (SFF) | 4 | 32 Gb | 1600 MHz (DDR3L) |
| OptiPlex 3040 SFF, MT, and Micro | 2 | 16 Gb | 1600 MHz (DDR3L memory only) |
| OptiPlex 7440 All-In-One | 2 | 16 Gb | 1600 MHz (DDR4 Non-ECC) |
NOTE: Voltage
DDR4 improved power efficiency over DDR3 and DDR3L memory technologies. Reducing DDR3L DRAM I/O voltage from 1.35 V used to 1.2 V.
DDR4 improved power efficiency over DDR3 and DDR3L memory technologies. Reducing DDR3L DRAM I/O voltage from 1.35 V used to 1.2 V.
Additional Information
Out of warranty? No problem. Go to the Dell.com/support website and enter your Dell Service Tag and see our offers.
NOTE: Offers are only available in US, Canada, UK, France, Germany, China, and Japan. Server and Storage devices are not applicable.
Article Properties
Article Number: 000132428
Article Type: How To
Last Modified: 06 Aug 2024
Version: 7
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