Lenovo Flex 4 Series Memory Upgrades ✓­ Guaranteed Compatible

Learn more about Lenovo Flex 4 Series memory

What Lenovo Flex 4 Series DIMM type is supported?

SODIMM

Why are there various DIMM types supported?

Factory configured 4 Series systems often have smaller, less expensive modules. As more memory is required different density and technologies are needed. DIMM type mixing is never recommended.

What Lenovo Flex 4 Series memory speed is supported?

DDR4-2133 and DDR4-2400

Why may there be various speeds of Lenovo Flex 4 Series memory?

Some servers often have various configurations and versions. If you are unsure what you need, please refer to your 4 Series manual or data sheet. If you need tech support, please contact us.

General DIMM population guideline for Lenovo Flex 4 Series upgrade to consider.

Some may or may not apply.

• If mixing memory speeds, all 1 DIMMs run at the lowest DDR4-2133 bus frequency.
• Install DIMMs starting furthest from the processor.
• Do not install DIMMs if the corresponding processor is not installed.
• If only one processor is installed in a two CPU system, only half of the DIMM slots are available.
• To maximize performance, balance the total memory capacity between all installed processors.
• It is not required, but it is recommended to load the channels similarly if possible.

Why are there so many Lenovo Flex 4 Series upgrade options?

IT buyers come from all walks of life. Some purchase by OEM part number. Some purchase by original module part number. Our goal is to give you confidence when purchasing Lenovo Flex 4 Series upgrades. All modules listed are qualified to work in your Lenovo Flex 4 Series.