MacBook Pro A1260 will not be in service 9/10 times

Got an A1260 of MacBook Pro which does not start until 9 / 10 times.  When you try to turn it on, the white sleep button flashes, optical drive makes noise, sleep button turn off, pause, turns on, then off again.  No boot chime sound unless it turns on with SUCCESS.  The computer battery died FYI.  The charger is original magsafe 85w.

I have reset:

SMC

PRAM

Re-seated memory (more info below)

Removed all memory - let it beeps 10 - with a pause in between each beep.  Signals from the chip firmware is OK.

Took off the keyboard and clean the computer with my compressor

Check internal connections

The first time I have reset the SMC, I was able to start on the first try.  When the computer was fine on the desktop, even though it is warm to the touch.  Memory in system information out like OK.  I checked the hard drive is good, etc..

If I try to reboot the computer, 9/10 times it will restart It just stops.

STOCK of 4 GB of memory:

Went out the 1st module memory in SLOT 1 and it starts.  Do not restart correctly.  Started via the Start button / stop after his stop.  Second attempt to restart the desktop computer has failed.

Put 2nd module from memory SLOT 2 INTO SLOT 1.  Did not start.  Come the second press, obtained in normal blue Mac screen, then it became black.

* Removed 2nd module of memory *.

Put 1 memory module in SLOT 2 - Startup successfully.  Do not restart correctly.  Has not pressed after his stop start to the first power.  Is not starting on the second power in a hurry.  Is No start to the third power in a hurry.

Put 1 module of memory in SLOT 1 - Startup successfully.  Successful restarting #1.  Successful restarting #2.  Successful restarting #3.

Replace 1 memory module in SLOT 2.  power button 4 press NO BOOT.

Replace 1 memory module in SLOT 1.  power button 4 press NO BOOT.

-

I think here is the logic board is a failure - a common problem with this model.

The computer is currently ONE with 1 stick of memory.  I had run it yesterday with both sticks in.  Once I tried to restart it, it wouldn't start up again.

Purchase of a new Council of logic for this machine is not worth the money.  I'll probably the GPU to reflow.

Any other suggestions?

Seems you have to RAM operation.

Replace RAM OEM or upgrade.

https://eShop.MacSales.com/shop/Apple/memory/

In or out of warranty you can get for free a 'Apple Service Diagnostics' OTC test

Genius of booking http://www.apple.com/retail/geniusbar/

Online https://getsupport.apple.com/GetproductgroupList.action

check the warranty https://selfsolve.apple.com/agreementWarrantyDynamic.do

Tags: Notebooks

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