Maximum memory size TP-Link WR841N v14/v13 / MT7628NN

Installing and Using OpenWrt Network and Wireless Configuration
1

Hi,

does anyone know what the maximum supported and available memory size of the WR841N / MT7628NN is?
I have upgraded mine (resoldered) from 4/32 to 16/64 but as far as I read 64mb is not recommended for luci.

2

Maximum memory on -8N is 128MB on -8K 256MB.
There is a very likely chance that older address lines are simply not drawn on particular PCB and limit is 64.

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3

I think the MTK chips require resistor strapping to change RAM size. The preboot ROM does not autodetect it like Atheros chips do.