How much RAM does the ASRock P55 Pro support?

The P55 Pro supports up to 16GB of memory across 4 slot(s), up to 4GB per slot.

What type of memory does the P55 Pro use?

It uses DDR3 DIMM memory modules.

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ASRock P55 ProMemory Upgrades

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System specifications for ASRock P55 Pro

Specifications reported for the ASRock P55 Pro.

Memory type: DDR3
Form factor: DIMM
Memory slots: 4
Maximum memory: 16GB
Max per slot: 4GB
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.
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 P55 Pro, 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 P55 ProMemory Upgrades

Change system Auto-detect

7 guaranteed-fit options

This option is out of stock.

System specifications for ASRock P55 Pro

Specifications reported for the ASRock P55 Pro.

Memory type: DDR3
Form factor: DIMM
Memory slots: 4
Maximum memory: 16GB
Max per slot: 4GB
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.
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 P55 ProMemory Upgrades

Choose your upgrade

System specifications for ASRock P55 Pro

Software

ASRock P55 ProMemory Upgrades

Choose your upgrade

System specifications for ASRock P55 Pro

Software