MacBook Pro 'unibody' 15-Inch
The ROM is a SOIC-8 chip (64Mbit) that can be read or written by the Medusa-3 with a Pomona clip.
The ROM in on the bottom (hard to reach) side of the motherboard.
Incase you have a dead GPU in this model you can get the Mac back to life by mounting our Tiresias GPUkiller.
Battery Port Tester: A4586
This Mac runs slow (about 1/4 of the normal speed) when no battery is connected.