[BPI-R4] Successfully upgraded 8GB RAM on BPI-R4

[liu_jie]

第一步 先换2颗4g颗粒

第二步

去掉一颗电阻 另两个换240R

第三步

AVAIL_DRAM_SIZE := 1024 2048 添加4096 编译atf

第四步

刷写bl2

最后开机

升级成功

[Lorem_amicus (Michael Fischer)]

Please use English!

[lu_zero (Luca Barbato)]

Would that pave the way to an 8GB option? I’m fairly sure not everybody is confident in desoldering and soldering back the ram But it is great that the software would support it with such a small change.

[wwwing]

He said need to modify the resistances

[squy]

Let me translate the content for him.

Step 1: Replace the two 2G memory above BPI-R4 into two 4G memory.

Step 2: Remove the RDA resistor, and then replace the RDB and RDC resistance to 240R.

Step 3:As shown in the figure, the 20th line “Avail_dram_size: = 1024 2048” add 4096. Then compile ATF.

Step 4: Flash BL2 to BPI-R4.

Finally power on

Upgrade successful

[kvic]

See delight every few days. Please keep them coming. It’s so much fun.

I do have a question to people who had done this MOD already.

Did you benchmark the latency & throughput before and after? Saw any significant degrade in both aspects after upgrade?

[Lorem_amicus (Michael Fischer)]

I would like to know everthing about RAM upgrade for R4 and R3: 4GB & 8GB possible?

Where is this overview from?

[M10 (M)]

This is nice info, i’m curious what @simon can tell us about this idea.

[wwwing]

I read the datasheet of MT7986, it marked MT7986 support max RAM is 2GB , so I think R3 cannot upgrade to 4GB or 8GB RAM.

[skylake]

慕名而来，刘姐nice！！！ 刘姐牛逼！！！

[Lorem_amicus (Michael Fischer)]

请用英文写！

？你的评论是什么意思 ？

谢谢你！

[wwwing]

He said that he came here because of Liu jie’s reputation. Liu jie is nice! Liu jie is awesome!

[totkeks (Norman Dankert)]

Yeah, I would love to order an 8GB official version without having to solder it myself. More memory for (future) containers, without the need to buy one of those 8/16/32GB Rockchip SBCs like the Banana Pi M7 (or Orange Pi 5 or NanoPC T6 … or others).