Macbook Pro Reflow

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Macbook Pro Reflow

Postby k8bdr9 » Mon Apr 24, 2017 4:20 pm

Hi I'm new to the site. Does anyone have any profiles for reflowing the Apple Macbook Pro GPU's? The machine I have is an ACHI IR6000

Thanks so much..
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Macbook Pro Reflow

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Re: Macbook Pro Reflow

Postby matic_s » Tue Apr 25, 2017 7:29 pm

Hello!

You should to build your own profile. Here is good guide how to do that.

BTW: Reflow/reball on MacBook GPU is unfortunately only temporary fix. You should to replace the GPU with brand new one for permanent fix.
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Re: Macbook Pro Reflow

Postby Dee30 » Wed Oct 11, 2017 7:38 pm

I have the same machine, I use this manually by pausing at certain temps as I work on a lot of different boards with variation of thickness withand so needs different temps.

I made a blank profile with just the top setting straight to 230c.
I pause this soon as I start profile. on whatever room temp it detects.
I then set the bottom heater to a temperature the will let the top sensor read 125C (you may have to do this bit a few times to get right 125c temp). This part will also change from board to board depending on thickness, hence why I do this manually.

Once you got the 125C, just let it preheat boardt for a few mins.

Now unpause the top heater by pressing run which should of been stuck at whatever room temp it detected at the begining. (note if you started profile again, you will notice top temp will start at what ever temp it currently reads, so take the temp sensor of the board for a second till it reaches a lower temp, then start the profile again and pause, put sensor back on and contnue manual profile.)

then let it reach 145C and pause for at least 2mins.

then unpause and let it reach 165c and pause for at least 5mins (reason being ive had chips that have high humidty inside and it pops, heating them a while prevents this every time, I do it for longer at times if it had water damage.)

then unpause till it gets to 190C at this point let it stay here for a minute and then take chip off if its leaded.

If not carry on and unpause till it gets to 205C and pause for 20 secs.
Unpause and let it go to 217C and leave for 10 seconds, it should now come off nicelly. Make sure you do not have any bonding arounf the chips.

Good luck, hope this helps. I would preheat the whole board in a toaster oven for around an hour or two at 100c before using IR6000.
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Re: Macbook Pro Reflow

Postby Deus » Thu Oct 12, 2017 8:51 am

@Dee30
Do you also pause the bottom heater?
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Re: Macbook Pro Reflow

Postby koubik » Thu Oct 12, 2017 2:11 pm

I think that explains your bent chip.
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