Chosen Solution
I have just replaced the HDD with a new and improved SSD. All of the research that I did before making this move suggested the computer would run cooler. Although it does not seem to running any hotter it most definitely does not seem any cooler. I also upgraded the RAM to 8 GB. Is this just normal for the older models or is this an indicator that I need to be looking for other things to fix? Fans do work and well for that matter. Any help would be great. Thanks
There are a few things I would do with this system. Given its age I would do a full cleaning of the dust build up if you haven’t already done that. In addition to that it likely needs fresh thermal paste on the CPU & GPU chips. The last action would be to replace the HD SATA cable. I always replace them when I replace the drive. It’s a common failure both by rubbing along the rough aluminum uppercase and the bends fatigue. I place electricians tape on the uppercase where the cable rests to help protect it. I also use a newer version of the cable which is better designed. Here’s the IFIXIT guide to pull the logic board: MacBook Pro 15" Unibody Late 2011 Logic Board Replacement and here’s the IFIXIT guide to replace the HD SATA cable: MacBook Pro 15" Unibody Late 2011 Hard Drive/IR Sensor Cable Replacement and this is the better cable: MacBook Pro 15" Unibody (Mid 2012) Hard Drive Cable Here’s the needed cleaner: Arctic Silver ArctiClean & Arctic Silver Thermal Paste Here’s the process to re-paste your chips: How to Apply Thermal Paste
