Technical Support Macbook Pro A- 1398

[Tara Laptops]

Motherboard P/N : 820-3332-A.
Symptom - 3 beeps pause 3 beeps continous.
I asume it is ram error.
voltages are fine.
On board there are 32 rams. My problem is how to find which ram is faulty. Pls provide some solution. Thanks

 

[Ahmad Safari]

Test RAM with memtest86 software

 

[Tara Laptops]

how will i test ram when the motherboard is dead

 

[Ahmad Safari]

You did not say it has no image. Did you program the BIOS?

There is no choice but to replace the RAMs.

 

[Tara Laptops]

there is a bios dump available in this group for emc 2512. it is now working. I have 2 identical boards. It is not working in both. from internet i downloaded a bin file and tried in 2nd board. The curser stops after 50%. If you or anybody have 100% ok bin file for 820-3332-A (emc 2512) pls share. It is very important. Thanks

 

[Vahab Hemmati]

there is a bios dump available in this group for emc 2512. it is now working. I have 2 identical boards. It is not working in both. from internet i downloaded a bin file and tried in 2nd board. The curser stops after 50%. If you or anybody have 100% ok bin file for 820-3332-A (emc 2512) pls share. It is very important. Thanks

 

[Tara Laptops]

i tried it. working. CPU is heating fine. but I am getting ram beeps. Ram voltage is 1.32v. Previously display was ok. Programed the bios and now ram beeps plus no no graphic voltage.