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MacBook Pro does not start up

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My MacBook pro 2007 does not start up as it before, I press the start button and have to hold it to start then it would switch off after 10-15 secs. The fans start up and hard drive starts the motion and screen goes grey but nothing happens and just switches off.

What is the issue here? What can I try, there is a power button issue but I don't know why it keeps switching off.

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Please give us the last four figures of your serial number (located in the battery compartment). A history of problems with this machine might also help.

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Hi All

Thanks for your replies, I can afford to buy a new one. But I just want to know what went wrong specifically, whether it's GPU, or the logic board problem, I would like to still salvage the hard drive from it as a minimum.

The serial number is : W872207GYAM

History of problems with having the following repair or replacement

Battery replaced twice

Logic board replaced

GPU issue / repair

Wifi issues

After I had the above replaced or repaired by AppleCare the laptop has been operating as normal. Until recently with this problem.

Cheers

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i have same problem to, but not with blank screen.

have you try reset smc?

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Deck the Halls
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Either X1600 or 8600M graphics is the issue, and if it isn't the issue today it will be the issue tomorrow. If not some southbridge or northbridge issue from being tied to that overheated POS chip in the first place.

It's not the answer most want to hear, but these boards really belong in a landfill. :( Don't go on eBay looking for replacements, they are all reballed or heatgunned trash that will die 1 day outside your 45 day guarantee. Unfortunately it is time to say goodbye.

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zzz, is really down on these older machines. As he gets older maybe he will not be so ready to trash older things, but he is of the disposable generation. There were recalls and class actions law suits on the nVidia 8600m GPU which have now expired. I did not see many issues with the Radeon X1600. Many of these machines were erroneously diagnosed as GPU issues because it was easy to do and the real culprit was the I/O board. If you have the money to buy a newer model, consider doing so. If not, I will try to help isolate the problem but we must have that serial number to get you to the correct part and guides.

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I resent the implication that age or generation has anything to do with my judgment! My first "professional" experiences in electronics where I serviced gear for money were on equipment that is probably older than you.

Pultec equalizers from 1951. Lansing coaxial speakers from the early 40s(with ORIGINAL ALCINO MAGNETS!!!) I still have some in storage for my own personal hobby. LA-2A limiters from the late 60s, and Studer A-827 from the late 80s(this would be considered "new"). Neve consoles from the early seventies before Siemens took over the name and butchered them with the VRP line(the "2011 15" Macbook Pro" of the studio business in the early eighties).

Do you know the difference between a 1951 Pultec and a 2007 Macbook Pro? One is fixable with new parts. One is not. Which would you guess is which? Quality analog audio gear ages gracefully, but cheap modern consumer electronics age like trash.

You can FIND a new part to replace a faulty part in a 1951 Pultec. You cannot find a replacement part to replace a faulty part in a 2007 Macbook Pro. Therefore, what do you get? Recycling after recycling and eventually all you have is total, utter junk. Unfit, broken trash that in no way resembles the original functioning device.

You can buy a capacitor for a crossover of the same spec as the original from 1941, that is NEW. These are common items. You can rebuild a 1951 Pultec equalizer to have the same level of reliability, same longevity, and same quality as a Pultec that came right out of the crate in 1951. This is repair and I promote it with tenacity.

You cannot find an X1600, or an 8600M that is new. The same holds true for the southbridge or northbridge for any of these boards. This is custom fabricated; a unique piece for which there are no drop in replacements. It is incredibly expensive to fabricate these items, so they are fabricated for a short period of time. They are only fabricated while it remains profitable to do so. Once they are done being fabricated, they are never created again, and whatever supply exists must be sufficient until newer devices come along requiring newer chipsets.

So what do you think happens eight years after a chip is no longer produced? What do you think you are getting? Do you think AMD decided to open up billion dollar fabrication plants so they could create chips they can't sell for more than a dime? Or are random scammers prying this junk off of old, dead boards and reselling them as "new" after reballing and an ultrasonic cleaning? The latter.

It is noble to wish to repair something that is broken. There's pride and an ear to ear smile to be had in taking a 604e from the forties, years before my dad was born, and making it sound the way it did on its first play. This is repair.

However, it is sad to patch back together what was once a great machine that has no ability, given current circumstances, to be anything but a piece of trash. That's butchery. There is no pride in bringing back a device as a skeleton of what it once was; lacking in reliability, performance, and capability of its original design. In this there is only shame, and it's what is promoted anytime someone sells some reheated reballed dead POS zombie chipset on eBay as either a BGA chip by itself or a "tested working" board.

This has nothing to do with age or generation. It has to do with a fabrication economy where chips are created for a limited time period, while profitable. After which, every machine capable of fabricating said chip is trashed. This is the reality of profitable silicon wafer production. I did not choose for the world to be this way, but I will live within the reality of it and repair accordingly!

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zzz, I'm just seeing the end of my life of repairing Macs. I am older than the Pultec. I have been an advocate of Apples high quality since its inception and have seen it degrade over the last fifteen years to the point that they are almost unrepairable. Due the drop in prices and quality of these once fine machines I have even been unable to raise my repair prices from 1993 levels People were willing to pay 10-20% the prices of a Mac to have it repaired and prices for these machines remained at the $3500 level for years. But the costs and quality have continually dropped. For me there just not much joy in a 2015 and its repair rating of 1 out of 10. My repair days will soon be over and my usefulness to society at an end. I don't know how you will continue but you can have it.

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Maybe you and I can share a niche repairing Pultecs? :)

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I would you you can't do it and eat.

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