How much RAM does the Lenovo ThinkPad R400 7439 support?

The ThinkPad R400 7439 supports up to 4GB of memory across 2 slot(s), up to 2GB per slot.

What type of memory does the ThinkPad R400 7439 use?

It uses DDR3 SODIMM memory modules.

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Lenovo ThinkPad R400 7439Memory Upgrades

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System specifications for Lenovo ThinkPad R400 7439

Specifications reported for the Lenovo ThinkPad R400 7439.

Memory type: DDR3
Form factor: SODIMM
Memory slots: 2
Maximum memory: 4GB
Max per slot: 2GB
Rated speed: 1066 MT/s
ECC: none

Good to know

Faster modules automatically run at your system's maximum supported speed.
Maximum capacity per slot is inferred from total capacity ÷ number of slots.

Software

Free tools from Seifelden — no purchase needed.

Seifelden Upgrade AssistantFree

Checks the drivers on your Lenovo ThinkPad R400 7439, installs the safe updates Windows offers, guides the rest to the official download — and confirms exactly which of the upgrades above your machine has room for.

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Your system

Lenovo ThinkPad R400 7439Memory Upgrades

Change system Auto-detect

4 guaranteed-fit options

This option is out of stock.

System specifications for Lenovo ThinkPad R400 7439

Specifications reported for the Lenovo ThinkPad R400 7439.

Memory type: DDR3
Form factor: SODIMM
Memory slots: 2
Maximum memory: 4GB
Max per slot: 2GB
Rated speed: 1066 MT/s
ECC: none

Good to know

Faster modules automatically run at your system's maximum supported speed.
Maximum capacity per slot is inferred from total capacity ÷ number of slots.

Software

Free tools from Seifelden — no purchase needed.

Seifelden Upgrade AssistantFree

Lenovo ThinkPad R400 7439Memory Upgrades

Choose your upgrade

System specifications for Lenovo ThinkPad R400 7439

Software

Lenovo ThinkPad R400 7439Memory Upgrades

Choose your upgrade

System specifications for Lenovo ThinkPad R400 7439

Software