Hi There,
I hope someone can help me with my video problem on MBP 15" 2010. If you look at the pictures the image distortion is exactly as it was before the GPU replacement, which makes me assume that it was not a GPU. But first a little background of the GPU replacement process.
We bought this beautiful BGA machine couple of weeks ago, ZX-D3 from a reputable Dutch SMD tools supplier. I think its Zhou Xiaobo brand or something. Btw that little lightsaber in the middle of hot air gun is a digital microscope that we decided to use for alignment of the cheap, since this model does not have auto alignment, which was 3k more expensive then this 3k machine. Basically we hook it up to computer and put an overlay of diagonal lines on the image that go from the center pad of the GPU on the MB to the four corners and when we put the new chip on it we align it according to these lines. Takes a long time to get the overlay lines exactly right but it seems to work for now.
1. First question is: can you recommend a better alignment technique (faster and simplier). Maybe draw the square around the chip with super paint that doesnt get removed with hot temp and alcohol or maybe something else?
We tested the machine in action with Luios profile from his ZM-R6200 on the test board and it worked like a charm.
After that we have managed to successfully replace 2 iMac GPUs (L2009 and E2011). Tested with ASD - PASSED - better then new! Btw, iMac GPUs are nice to replace because they have this white outline around the chip and do not need expensive alignment machine.
So charged with confidence and positive energy after these two successful GPU replacements, I went on to replace this MBP 15” 2010 GPU but it failed. Because of excitement or my forgetfulness I did not do a diagnostics reflow on this machine to make sure it was the GPU. Well lesson learned hard. But the fuck up doesnt end there and during the removal of underfill from the chip my bamboo stick went a little bit toooooo far and took couple of capacitors with it (C8474 and his big brother C8456). But no biggy, I resoldered them back. How successful? I dont know. These capacitors are still a little mystery to me.
2. Sorry for a lame question but how do I know for certain the capacitor is working correctly on the board? Do I measure AC current or do I do it in a diode mode?
3. Main question. Is it improper GPU installation? Or it is not the problem with GPU but maybe with infamous capacitor? Or smth else?
Thank you for your input.
Max
I hope someone can help me with my video problem on MBP 15" 2010. If you look at the pictures the image distortion is exactly as it was before the GPU replacement, which makes me assume that it was not a GPU. But first a little background of the GPU replacement process.
We bought this beautiful BGA machine couple of weeks ago, ZX-D3 from a reputable Dutch SMD tools supplier. I think its Zhou Xiaobo brand or something. Btw that little lightsaber in the middle of hot air gun is a digital microscope that we decided to use for alignment of the cheap, since this model does not have auto alignment, which was 3k more expensive then this 3k machine. Basically we hook it up to computer and put an overlay of diagonal lines on the image that go from the center pad of the GPU on the MB to the four corners and when we put the new chip on it we align it according to these lines. Takes a long time to get the overlay lines exactly right but it seems to work for now.
1. First question is: can you recommend a better alignment technique (faster and simplier). Maybe draw the square around the chip with super paint that doesnt get removed with hot temp and alcohol or maybe something else?
We tested the machine in action with Luios profile from his ZM-R6200 on the test board and it worked like a charm.
After that we have managed to successfully replace 2 iMac GPUs (L2009 and E2011). Tested with ASD - PASSED - better then new! Btw, iMac GPUs are nice to replace because they have this white outline around the chip and do not need expensive alignment machine.
So charged with confidence and positive energy after these two successful GPU replacements, I went on to replace this MBP 15” 2010 GPU but it failed. Because of excitement or my forgetfulness I did not do a diagnostics reflow on this machine to make sure it was the GPU. Well lesson learned hard. But the fuck up doesnt end there and during the removal of underfill from the chip my bamboo stick went a little bit toooooo far and took couple of capacitors with it (C8474 and his big brother C8456). But no biggy, I resoldered them back. How successful? I dont know. These capacitors are still a little mystery to me.
2. Sorry for a lame question but how do I know for certain the capacitor is working correctly on the board? Do I measure AC current or do I do it in a diode mode?
3. Main question. Is it improper GPU installation? Or it is not the problem with GPU but maybe with infamous capacitor? Or smth else?
Thank you for your input.
Max