[BPI-R3] Hardware Mod for more RAM?

Banana Pi Router design BPI-R3/R3 Mini(MT7986)
1

Howdy,

the RAM chip on the BPI-R3 is a 16Gbit Samsung K4AAG165WA-BCWE chip.Using 1x16Gbit.

There is also a Model using 2x16Gbit for 32Gbit. K4ABG165WA-MCWE which can even be bought on Aliexpress for 15 bucks.

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Would it be possible to exchange the chips and get 4Gbyte of RAM? Or is that impossible as the organisation switches to 2x16 ?

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There shouldn’t be any issues with building an OpenWRT build for 4gb RAM right?

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2

As i know

1x16 means single channel chip

2x16 means dual channel chip with additional pins that are unused in 1x16

So unless you 100% sure at least for:

  • The SoC supports dual-channel memory (see the datasheet/TRM?)

  • The 2nd channel pads of the DDR on the PCB are physically connected to the SoC (Ask @sinovoip)

  • The SoC itself supports > 2GB of RAM

There is a great chance of failure of this operation - IMHO.

3

Hi， MT7986 only supports up to 16gb DDR4

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Please create a 4GB RAM version by default for the BPI-R3, which make much more sense anyways I think…!

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