(11-19-2020, 12:36 AM)wildering Wrote: I cracked open the two other boards and ran memtest on them with no errors reported. I then transplanted that eMMC module onto the date code 5219 board and ran the test again. I was presented with a slew of errors. It's evident that, that ROCKPro64 (v2.1, 2018-07-02 5219) is also defective and will warrant an RMA.
I ran memtest with Debian an it seems ok. (v2.1, 2018-07-02). What is noticeable is the high temperature reached (70°C) in spite of a heatsink. Then I put it over a fan and it dropped below 50°C after 9 min
(11-19-2020, 12:27 PM)LMM Wrote:(11-19-2020, 12:36 AM)wildering Wrote: I cracked open the two other boards and ran memtest on them with no errors reported. I then transplanted that eMMC module onto the date code 5219 board and ran the test again. I was presented with a slew of errors. It's evident that, that ROCKPro64 (v2.1, 2018-07-02 5219) is also defective and will warrant an RMA.
I ran memtest with Debian an it seems ok. (v2.1, 2018-07-02). What is noticeable is the high temperature reached (70°C) in spite of a heatsink. Then I put it over a fan and it dropped below 50°C after 9 min
I don't know if it is a good practice (and a good idea) but I cut the conductive pad in order to be able to double the layer on the DDR chip to make the contact with the heatsink. Otherwise it probably does not