Apple Event: May 7th at 7 am PT
I just purchased a set of 8GB (4x2) RAM for my 2010 Macbook. The computer only recognizes one of the two sticks. After a restart, the second stick will occasionally work. I've switched them two different ports but that did not help.
MacBook Pro, OS X Yosemite (10.10)
What brand of RAM did you purchase and from whom? Macs can be very picky about RAM.
Did you test each module singly in each bay?
What are the EXACT specifications of the RAM modules?
Ciao.
The ram is Crucial 4GBx2 DDR3 1066.
I believe something may be wrong with one of the ram ports itself. Both modules will work, but after a shutdown it will display one of the bays as empty.
nhallman103 wrote:
The ram is Crucial 4GBx2 DDR3 1066.
I believe something may be wrong with one of the ram ports itself. Both modules will work, but after a shutdown it will display one of the bays as empty.
If it worked fine before the new RAM purchase, then it is the fault of a new stick.
You can test the banks by re-installing the original factory RAM. If after the test you still have a problem then you will have to take it in:
Genius reservation http://www.apple.com/retail/geniusbar/
on-line https://getsupport.apple.com/GetproductgroupList.action
check warranty https://selfsolve.apple.com/agreementWarrantyDynamic.do
What happens when you install the original RAM?
The Apple Hardware Test will test the RAM modules. Run it.
https://support.apple.com/en-us/HT201257
Note that an error free AHT is not definitive.
A superior and more comprehensive RAM test is REMBER. If the AHT reports no problems, download it and run it overnight so that sufficient loops are executed:
http://www.kelleycomputing.net/rember/
Ciao.
New Macbook Pro RAM does not work
