Currently Being ModeratedJan 16, 2013 12:18 PM (in response to busbcadd)
That usually means a memory problem:
Currently Being ModeratedJan 16, 2013 10:31 PM (in response to busbcadd)
You need to confirm what model Mac you have. Go under the Apple Menu and Choose "About This Mac" and then in the window that pops up click on More Info. In the window that follows will be something similar to Macbook Pro and then something in grey type below it as well as the memory. Please post both items.
A cursory search for 2.26 Gz Intel 2 Duo Macs for Mid-2009 shows they take PC3-8500 (1066 MHz) DDR3 SO-DIMM memory.
From the excellent MacTracker program:
2 - 204-pin PC3-8500 (1066 MHz) DDR3 SO-DIMM
But we cannot confirm until we know for sure that you have a 13" Mid 2009 Model.
Currently Being ModeratedJan 18, 2013 1:03 PM (in response to busbcadd)
I have the exact same problem, I wanted to upgrade my Macbook Late 2008 and bought Corsair Mac Memory DDR3 PC-8500 1066Mhz 2x4Gb but it won't work. Tested them together then seperately but all I have is a black screen and 3 beeps.
I did a lot of research to be sure I was buying the correct one so I have the right references. I'll do an exchange, I hope the next one will work.
Currently Being ModeratedFeb 16, 2013 6:48 AM (in response to busbcadd)
Have exactly the same problem. I'm tuned in for an answer...
Currently Being ModeratedFeb 16, 2013 7:02 AM (in response to Taf123)
My problem has been solved. Both memory sticks were defective, I did an exchange and the new pair works great so far. I have a friend who bought them as well and he had the same problem...
Your macbok will tell you what's the matter, 3 beeps = memory stick problem. 1, 2, 3, 4 or 5 beeps : each alert has its meaning. There's a thread about that, look here : http://support.apple.com/kb/HT1547
Other wise there's also PRAM/NVRAM reset, look here : http://support.apple.com/kb/HT1379
The only solution that worked for me was an exchange. Good luck.
Currently Being ModeratedApr 21, 2013 4:57 PM (in response to busbcadd)
I bought Corsair CMSA8GX3M2A1333C9 for MacBook Pro Mid 2009 5,4. Got the three beeps. Returned to Amazon and got replacement. Same thing! I'm not going to try Corsair a third time so I'll be returning these and getting a different brand.
Currently Being ModeratedApr 21, 2013 5:00 PM (in response to Arpamac)
Your computer needs RAM as listed below.
Maximum Memory 8.0 GB
Memory Slots 2 - 204-pin PC3-8500 (1066 MHz) DDR3 SO-DIMM
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