Physical RAM Disk

Physical RAM Disk

Here, talking about physical RAM disk, not the software version.

Interface type

There are three types interface for physical RAM disk, one is PCIe interface, another SATA, or the external drive.


There are two controllers on such board, one is to simulate device, second one is to address the RAM array.


Following web page shows the design of such board

The way we made an external PCIe RAM disk based on the DDR memory Cache

Testing result

Full overview of the new DDR RAM disk


SATA Interface


PCIe Interface


External Drive

External Drive


pci express ddr3 ram disk


If a stick of RAM is given a constant supply of power, could it be used as a permanent storage?

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