this post was submitted on 12 Sep 2024
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I bought my soldering station with air solderer and iron solderer for about 40$ from AliExpress, the ones with IR bottom heater cost around 90-100$
What's the IR bottom heater for?
IR bottom heaters are usually not strong enough for reballing. They're for boards that are hard to solder, because there's a lot of copper or a heatsink for example.
The bottom heater preheats the whole board, not to soldering temperatures but enough to make soldering a lot easier.
Reball of chips on gpus and motherboards of PCs and gaming consoles
Ah. Other than fixing the old Xbox360 RROD , I've never needed to do any BGA work, just circuit soldering
Those Nvidia cards used in mining and AI need reballs regularly, also ps4 south bridge often falls off, also intel sockets sometimes need reball, also you can upgrade ram on your phone and Nintendo switch
Oh for sure. I'm not knocking those that can do it, just that my regular soldering skills are shit enough that I'd probably be hesitant to reball something more complicated even with the right gear :-)