Hello PLUGgers, Not really a Linux/Unix question, but since some of you have experience in the electronics biz, maybe you have some ideas.
I have a GPU with a blower style heat sink and fan (single fan, Cu block) Zotac Gaming Geforce RTX 3090 Since the blower is a bit loud (it was a data center GPU once upon a time), after some research I found the "desktop" version of the fan / heat sink - a standard Al heat pipe with 3 fans, as is used for most gaming GPU. This heat sing/triple fan does fit, but I need to make a slight modification. Blower type cards typically have the 2 power connectors on the end of the PCB J5010, J5011 - as this one does - and I just need to move the connectors to the top PCB edge J1 and J2 locations so that the heat sink /fan and shroud will line up and fit. Since my old Weller WP25 soldering iron tops out at 250C, and is showing it age a bit (bought it ? decades ago), I splurged on a Hakko FX888DX-010BY - Digital Soldering Station 50-480C 65W ceramic heater chisel, 1.6 mm tip Now, most of my fiddling involves Sn/Pb, Sn/Ag/[Cu,Bi,Se] solders at 250-350C, and the Hakko wand has no problems liquefying these. However, I am not able to melt to remove the solder from the GPU PCB connectors, even at a setting of 400-480C. Does anyone have any ideas or information on the solder used on GPU PCBs and components? -Ed
