Hi everyone,
I have a HP DV810US (subset of DV6700, subset of DV6000) laptop that has a "no power" symptom most likely caused by a bad NVIDIA chip. I'm looking to reflow the chipset with either a butane pencil torch/heat gun or oven. Is one method "safer" than the other? I would prefer the torch method if there is no reason not to.
Also, how should I go about doing this? There are so many different methods online, each more absurd than before :/ Basically, if I use a butane torch, I'm going to also have an IR thermometer to monitor the temps and make sure it doesn't get over 250ºC. My idea is just to heat it up slowly from above, about 10ºC-20ºC/minute. I will also have added petroleum-based rosin flux beforehand.
However, some people say that you should set the motherboard at a 45º angle. In addition, they instruct you to heat it up from the bottom first, and then flip it over to the top and finish reflowing there. Others even go as far as saying that you should apply some pressure to the chip when you are reflowing it.
Who is correct here? What advice should I take in order to get the best possible results?
Thanks,
JGAN
I have a HP DV810US (subset of DV6700, subset of DV6000) laptop that has a "no power" symptom most likely caused by a bad NVIDIA chip. I'm looking to reflow the chipset with either a butane pencil torch/heat gun or oven. Is one method "safer" than the other? I would prefer the torch method if there is no reason not to.
Also, how should I go about doing this? There are so many different methods online, each more absurd than before :/ Basically, if I use a butane torch, I'm going to also have an IR thermometer to monitor the temps and make sure it doesn't get over 250ºC. My idea is just to heat it up slowly from above, about 10ºC-20ºC/minute. I will also have added petroleum-based rosin flux beforehand.
However, some people say that you should set the motherboard at a 45º angle. In addition, they instruct you to heat it up from the bottom first, and then flip it over to the top and finish reflowing there. Others even go as far as saying that you should apply some pressure to the chip when you are reflowing it.
Who is correct here? What advice should I take in order to get the best possible results?
Thanks,
JGAN
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