My first reballing attempt

1/3: Desolder the GPU from the motherboard, remove old solder.

2/3: GPU chip after applying new lead-solder balls.

3/3: GPU soldered back to motherboard. (i know it should be cleaned properly at the beginning however there was a 99% chances i will damage GPU, motherboard or both, therefore i did not bother about it too much). However it worked! HA!

It was done 2 months ago.

All this practise I am trying to master, will help me to repair my iMac's 2008 nVidia 8800GS. It needs chip replacement as it was produced before 2008 and any nvidia chip produced before 2008 needs replacement due to manufacturing defect.

Buying new 'graphics card' will cost around 300-400 pounds (and i dont know how long it will last),so I prefer to repair it by myself. Chip cost is around 60 pounds.

Repairing process of my iMac's GPU will be posted as soon as i will boost my self convenience up a bit.

However, I have quite a big soldering background, as I'm doing it from 2002, so it should not be that difficult. We'll see later on...