MacBook Pro, 2.53 GHz, i5, 1066 MHz, DDR3. I recently upgrade OS from Snow Leopard to Maverick. Ordered 8Gb memory chip to replace the two 2 GB chips in the system. Am told by major vendor (Memoryten) that one 8 Gb can be added to one of the two Gb slots for a total of 10. Also being told by Apple tech guy that's not true, that I can only add two 4 Gb chips for a total of 8. Totally confused. Who is correct please?
Also, after upgrading the OS, system started acting strange at times ( opening various unwanted apps on restart, web pages reduce in size without touching any keys, occasional freeze-ups such that option/command/esc will not work-have to turn system off/on). Will additional memory help with this.
BTW, Disk Utility First Aid indicates that all is okay.
Grateful Indeed-Paul
Also, after upgrading the OS, system started acting strange at times ( opening various unwanted apps on restart, web pages reduce in size without touching any keys, occasional freeze-ups such that option/command/esc will not work-have to turn system off/on). Will additional memory help with this.
BTW, Disk Utility First Aid indicates that all is okay.
Grateful Indeed-Paul