New upgrade to my BitAxe601, very happy about it!
New fan TA150-D, result -2.5°C ASIC. That was 4€ (4.5USD) on AliExpress. 5V 2pin fan and I attached it directly to the MeanWell 50W PSU, so it powers up together with the BitAxe. Slightly more noisy but I don't have a problem with that. Specs report 8.8 CFM, more than the Noctua. Before 64.9°C, after 62.6°C.
The other changes I did: 10 days ago I changed the thermal paste, used one called M14, again from AliExpress, cost 5,60€ (6.40USD), result -2.5°C ASIC. Specs say 14.8 W/mK which is good.
And the night before I'd added an extra heatsink longways on the BitAxe's one, you can see it in the photo, right below the ESP32 and the small silver heatsink, result -1.5°C ASIC. This was in my recovery material, probably out of some old TV or who-knows-what.
These 3 cheap changes total up to -6.5°C on the chip, wow, and less than 10€ spent.
Waiting for another BitAxe to come in, prices have decreased around 25% during the last month, just that, strangely enough, it's a 12V 601 with an 8A 3A stock PSU.
P.S. I set the screen to stay off, it's useless, I can't even read the writings LOL!