I get that 2600 doesn't exist. : )

Well, I guess I better got on this OCing project before the time limit for returning my RAM expires. Haha. There could potentially be other factors for why one type of RAM would show up as another in System Profiler. This is something I'll look into... Eventually. Curiosity is a powerful force, but it doesn't take precedence in all cases. Heh.
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DP 1.08GHz PMG4 MDD, 1GB PC2700 DDR, 200GB ATA (16MB, 7200RPM), Radeon 9800 Pro (256MB)