the only purpose to do this mod is to make a build with RTX3070 in 17cm deep case ,and use blower fan to exhaust hot air out. of the case
pick a RTX3070 FE make sure the length of pcb is actually the same with mITX MB pcb,and make a midframe to mount heatpipes and block to the GPU pcb:
design & arrange the 5 heatpipes like below,technically ,5 heatpipe in Ushape bending can transfer upto 300watts heat,suitable for 220TDP RTX3070:
then Bend them:
reflow soldering nickel plated copper fins onto the heatpipes,also the heatpipes are soldered to the block to minimize thermal resistance:
fins' height is 22mm,width is 110mm ,so i will use a 20mm thick and 10cm diameter big pwm blower to blow cool air into the fins:
looks ok for me:
then paint it to matte black,and mount it onto the midframe:
then mount the midframe onto the GPU pcb:
pick this pwm blower ,it can provide silence in low pwm RPM,and violent airflow at high pwm:
80mm OD,can rotate in low RPM and still offer sufficient air flow:
quick make a fan shroud and painted matte black:
the GPU almost complete covered by the blower and heatsink:
pick a RTX3070 FE make sure the length of pcb is actually the same with mITX MB pcb,and make a midframe to mount heatpipes and block to the GPU pcb:
design & arrange the 5 heatpipes like below,technically ,5 heatpipe in Ushape bending can transfer upto 300watts heat,suitable for 220TDP RTX3070:
then Bend them:
reflow soldering nickel plated copper fins onto the heatpipes,also the heatpipes are soldered to the block to minimize thermal resistance:
fins' height is 22mm,width is 110mm ,so i will use a 20mm thick and 10cm diameter big pwm blower to blow cool air into the fins:
looks ok for me:
then paint it to matte black,and mount it onto the midframe:
then mount the midframe onto the GPU pcb:
pick this pwm blower ,it can provide silence in low pwm RPM,and violent airflow at high pwm:
80mm OD,can rotate in low RPM and still offer sufficient air flow:
quick make a fan shroud and painted matte black:
the GPU almost complete covered by the blower and heatsink:
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