After the third video ram failure on my MBP A1150 I gave up repairing and purchased a new MBP... I combined the best parts of my A1150 with my niece's identical system ...Her's 'survived' 4 rough service college years ...She now has my pristine case/display/keyboard with her motherboard/HDD and optical drive..
New FrankenMac now WORKS GREAT... NO problems Thanks to the iFixit detailed repair manuals and tools...!!!...in years past i have replaced both cooling fans / HDD upgrades and CMOS battery replacement...Thanx again
Follow instructions!!... Keep screws in separate containers IN ORDER.. SUGGESTION for new product...a multi-compartment box to hold screws/etc in the order they are removed...( a fishing lure tacklebox)