DELL Vostro 3491 RAM upgrade specifications
Dell Vostro 3000 series model 3491 supports DDR4-SDRAM memory upgrades with a maximum capacity of 16 GB across 2 SO-DIMM slots. Compatible memory modules operate at 2666 MHz frequency. The laptop specifications allow for dual-channel memory configuration with SO-DIMM form factor modules. Current upgrade options enable users to expand installed memory capacity by utilizing available memory slots within the maximum supported specifications.
Memory Upgrade Specifications
| Specification | Value |
|---|---|
| Memory slots | 2x SO-DIMM |
| Form factor | SO-DIMM |
| Memory type | DDR4-SDRAM |
| Frequency | 2666 MHz |
| Maximum RAM | 16 GB |
| Voltage | 1.2V |
| Number of pins | 260-pin |
| Interface | PC4 |
| PC Speed Rating | PC4-2666 (PC4-21328) |
| Bandwidth | 21.3 GB/s |
| Laptop Release date | 04 March 2020 |
Additional Notes
- Dual channel architecture requires matching module pairs to utilize the full available memory bandwidth in this DELL Vostro 3491.
- The hardware design limits total addressable memory to 16 GB regardless of the operating system architecture or processor capabilities.
- Installing modules with frequencies higher than 2666 MHz results in automatic downclocking to the system bus limit.
- Populating both slots with 8 GB modules is necessary to achieve the maximum supported capacity as individual 16 GB sticks will not function.
- The SO-DIMM form factor necessitates 260-pin modules and excludes the use of desktop or older low voltage DDR3 standards.
- Latency performance depends on the highest CL rating if 2 unequal modules are installed together.
- Accessing the memory slots requires removal of the base cover which may involve internal clips that are prone to mechanical stress during disassembly.