How much RAM does the ASRock 939A8X-M support?

The 939A8X-M supports up to 4GB of memory across 4 slot(s), up to 1GB per slot.

What type of memory does the 939A8X-M use?

It uses DDR DIMM memory modules.

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ASRock 939A8X-MMemory Upgrades

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System specifications for ASRock 939A8X-M

Specifications reported for the ASRock 939A8X-M.

Memory type: DDR
Form factor: DIMM
Memory slots: 4
Maximum memory: 4GB
Max per slot: 1GB
Rated speed: 400 MT/s

Good to know

Maximum capacity per slot is inferred from total capacity ÷ number of slots.
Compatibility is based on published specifications, not yet confirmed against a manufacturer tool.

Software

Free tools from Seifelden — no purchase needed.

Seifelden Upgrade AssistantFree

Checks the drivers on your ASRock 939A8X-M, 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

ASRock 939A8X-MMemory Upgrades

Change system Auto-detect

7 guaranteed-fit options

This option is out of stock.

System specifications for ASRock 939A8X-M

Specifications reported for the ASRock 939A8X-M.

Memory type: DDR
Form factor: DIMM
Memory slots: 4
Maximum memory: 4GB
Max per slot: 1GB
Rated speed: 400 MT/s

Good to know

Maximum capacity per slot is inferred from total capacity ÷ number of slots.
Compatibility is based on published specifications, not yet confirmed against a manufacturer tool.

Software

Free tools from Seifelden — no purchase needed.

Seifelden Upgrade AssistantFree

ASRock 939A8X-MMemory Upgrades

Choose your upgrade

System specifications for ASRock 939A8X-M

Software

ASRock 939A8X-MMemory Upgrades

Choose your upgrade

System specifications for ASRock 939A8X-M

Software