How do I upgrade my ram to 8GB? without computer freezing?
I replaced the manufactures ram that was originally 2x2GB. Tried upgrading to 2x4GB with the system maximum allowed memory is 8GB. After I installed the kit, the computer would freeze during start up and would not continue unless you reset the computer. I verified if the ram were installed right and made sure there were no damages on both ends. Maybe not the smartest idea but I took one of the 4GB and swapped with one of the originally 2GB. The system works with having two unequal ram, a 2GB and 4GB with a total of 6GB memory. I have upgraded this MacBook Pro to OS Maverick but unsure if that has any effect. The 2 x 4GB kit I bought is cheap inexpensive brand. PNY 8GB (2x4GB) Dual Channel DDR3 PC3-8500 1066MHz. Unsure what are the next steps but I am hoping to get a solution so I can use the money well spent on the new kit.
Sounds like bad RAM or incompatible RAM. Make sure under system report that the RAM you purchased is exactly the same specs as the RAM that initially came with your Mac. Also, whenever you introduce new hardware to a Mac it is always a good idea to Do a PRAM reset. During boot hold the Command,Option, and the P and R keys simultaneously and hold till the machine reboots and chimes 3 times then release and boot.