Macbook Pro has stopped recognising all 4Gbs of Ram - down to 2Gb.

[jive]

I've googled this as much as I can and I have no idea what to do.


It went from having 4Gb yesterday (or the last time I checked it anyway) down to 2Gb. I'm using a Macbook Pro Unibody bought in July 2009. System Profiler says that it only has RAM in one slot.

What's going on and how can I sort it? After Effects is also saying that it can't multi-process - I was able to previously so I'm confused on that too.


Cheers for any help - it's driving me mad not knowing.

*I've restarted/ran Disk Repairs etc etc

 

[Saberon]

Take it in for repairs, something is obviously wrong

 

[jive]

I was hoping there was going to be a better way of doing it. I really need my laptop at the moment.

 

[diamond.g]

It appears that one of your slots are dead. You could try taking out the ram and try each slot to verify which slot is actually dead.

 

[square one]

bad logic board? happened with my g4 pb.

 

[jive]

I've booked a Genius appt. We'll see how it goes - the laptop is only 9 months old...

 

[Bill Gates]

I've booked a Genius appt. We'll see how it goes - the laptop is only 9 months old...

It happens. After all, it is made in China.

 

[jive]

Took it in, turned it on and the 4gb was registering. He took it to bits gave it a clean and gave it back to me. Now it's working fine. Hmm.

 

[iketeru]

try swapping the modules next time and see what happens? then you'll know if it's your board or the memory itself.

 

[iThinkergoiMac]

Had the same issue with my PBG4... one of the 1 GB sticks wasn't showing up. For a bit, I could fix it by restarting or reseating the RAM. But it got worse and worse until, finally, it stopped showing up altogether. It was a bad slot in my case. It could be either a bad slot or bad RAM in your case. As others have said, try swapping the sticks next time you lose one to see what happens.

 

[pukifloyd]

It happens. After all, it is made in China.

good for you OP...