Reballing Sapphire Radeon HD 7950 DUAL-X -- R9 280X GPU With Homemade BGA Rework Station

Reballing Sapphire Radeon HD 7950 DUAL-X - R9 280X GPU With Homemade BGA Rework Station And Low Cost Equipment.
This video is showing you how to repair graphics cards AMD-ATI Radeon or Nvidia with BGA problem.
Why Reballing ? The graphics chip is soldered to the board with hundreds small solder balls (BGA) and one or more solder joints crack with time due to the thermal cycle which creates thermal stress (contraction and expansion https://en.wikipedia.org/wiki/Thermal_stress) and the graphics card stops working, old thermal paste or paste with bad heat conductivity and clogged cooler increase the thermal stress, with this procedure we replace the solder balls and resolder the chip to the board and the graphics card works again.
I prefer reballing over reflow because reflow is not a long term solution and the black screen or artifacts will return again soon, reballing is more reliable and is the preferred GPU repair method.

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T12 Digital Soldering station: https://youtu.be/rCsh6HuhIWs
Sapphire Radeon HD 7870 XT: https://youtu.be/GLAwzDdUMQs
DIY HomeMade BGA Rework Station: https://youtu.be/yOoBdcpfc5U
DIY HAKKO T12 Digital Soldering Iron: https://youtu.be/W5HECI1L3dg

Видео Reballing Sapphire Radeon HD 7950 DUAL-X -- R9 280X GPU With Homemade BGA Rework Station канала Nik Telio