Logic Board Replacement
my fix it
Lifetime Warranty - This iFixit product is guaranteed to function as long as you have it.
Replace logic board; replace HDD with SSD; move HDD to optical bay; upgrade RAM.
All in all, everything went well. Considering that this was my first repair ever, it took me much longer (4-6 hours) than indicated (40-60 mins). Also, during the repair I had to watch a couple of video tutorials on YouT . . .