How much RAM does the Dell PowerEdge R420xr support?

The PowerEdge R420xr supports up to 384GB of memory across 12 slot(s), up to 32GB per slot.

What type of memory does the PowerEdge R420xr use?

It uses DDR3 DIMM memory modules.

Guaranteed-compatible DDR3 DIMM upgrades for the Dell PowerEdge R420xr, in matched-kit options that fill your slots.

This option is out of stock.

Specifications reported for this system.

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.

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Guaranteed-compatible DDR3 DIMM upgrades for the Dell PowerEdge R420xr, in matched-kit options that fill your slots.

This option is out of stock.

Specifications reported for this system.

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.