Learn Electronics Repair #25 Nvidea Geforce 8800GT GPU BGA Remove and Rework

Learn Electronics Repair #25
Nvidea Geforce 8800GT GPU Rework
(8800GT Part 7)

How to remove a GPU BGA chip. In this video we look at one of our 8800GT graphics cards - the one with the short circuit voltage rail. We are reading 2.3 ohms compared with around 200 ohms on the other card we have. As we could not find the cause of the fault by removing the capacitors on that supply rail, the next option is to remove the GPU. Can we remove it successfully? Does the short disappear, proving the GPU was in fact short circuit. You'll just have to watch the video to find out....

If you have been following the 8800GT Repair videos you can find the other episodes here:

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TEST METERS
Aneng AN8009
KM601
VC480C+
MESR-100 ESR METER
XC6013L CAPACITOR METER
TM-902C TEMPERATURE METER
FNB58 USB ANALYZER
PCI POST ANALYZER
TL460S Plus PCI_E ANALYZER
MULTIMETER PROBE KIT KET05
OSCILLOSCOPES
FNIRSI 1014D
FNIRSI DSO-TC3
FNIRSI DPOX180H
BENCH PSU
NPS3010W
SOLDERING
T12 Station with M8 9501 Handle
SUGON T26D
QUICK 861DW
PROS'KIT SS-331H
THERMAL CAMERA
Infiray P2 Pro
MICROSCOPES
Amscope Optical Microscope (copy)
ANDONSTAR AD407

EEPROM Programming
TL866 II+
CH341A

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Thank you
Richard

[naftalihaskell]

Thanks for Sharing. It's obvious you share your knowledge willingly, in detail.
This specific video got me a serious headache because of those movements!
I noticed on other videos your efforts on having the items being under your camera. In this one you could have done better by putting your camera on a tripod.

[PCarew]

Any value in running some 'board heating tests' 1st. IE just running the bottom heat for the profile and then probing the top of the board to determine how evenly it heated?

[مصطفىالربيعي-تغ]

You are best electrics eng that I have seen

[youngsairgunsa]

thank you, the last video was labelled 8600gs or something like that, i assumed that it was a different job all together thank you!

[reklaw]

brilliant video, never seen this done before. unlucky with board. Thanks for your time.

[blagzster]

Enjoying the Vids, thanks. I started messing about with this type of stuff during lockdown to learn a bit more. Nice BGA machine btw. Beats my hand crafted set up I'm rigging up!

[Dutch_off_grid_homesteading]

Heya, I can't imagine how difficult that is only a lot of practice can learn this work

[PCarew]

Hello Richard, Do you feel that you didn't get enough bottom heat into this board or was it more that the top heat was to focused just on the chip?
As you mentioned, working on a variety of boards, means that they all react differently.