There is a fair chance these RAM memory chips are not of correct
specification, nor of reputable quality for use in Mac portables.
• MacBook: How to remove or install memory - Apple Support
The supported RAM specs (in general) for your identified MacBook:
Maximum Memory 8.0 GB (Actual) 4.0 GB (Apple)
Memory Slots 2 - 204-pin PC3-8500 (1066MHz) DDR3 SO-DIMM
As not all the memory chips out there are equal to the task of working
in an Apple computer. Avoid bargain memory brands and those whose
companies are not mentioned in actual Mac-centric user circles.
Because the video 'graphics chip' also relies on the Standard memory
total as part of its ability to provide a display, you need to consider more
RAM than the least possible it may (or may not) support. Graphics:
Graphics Card NVIDIA GeForce 9400M
Graphics Memory 256 MB of DDR3 SDRAM shared with main memory
(Minimum graphics memory usage is 256 MB)
Display Connection 1 - Mini DisplayPort
Display Modes Dual display extended and video mirroring
External Resolution Up to 2560 by 1600 pixels
Brands most commonly found to be without issue in Mac computers
from reputable upgrade parts sources, are from Crucial.com and are
of the correct part number to match the purpose (your exact mac) or
from reputable Mac-centric reseller, OWC macsales.com. Details in
how the chips are manufactured, and to higher standards, is why they
are most likely to provide trouble-free performance.
Major manufacturers of quality memory chips aren't kingston, or bargin name.
After installing the correct best-quality reputable memory chips in the Mac
you may need to use the 'System Management Controller' - reset procedure:
• Reset the System Management Controller (SMC) on your Mac - Apple Support
...in order to have the memory chips appear. You would need more than 4GB
for a reasonably good experience running El Capitan 10.11.6. & your applications.
Good luck & happy trails! 🙂
