I've no idea the quality of the RAM but I removed the RAM chip and to my dismay it wouldn't even boot the Jaguar installer disc....

The HD is 10GB not that big, ever hear of this Jaguar issue? Also, I notice that it's just sluggish to boot OSX in general although system is responsive (due to RAM). You think there's something intrinsic to the MoBo or RAM or HD? The RAM and HD are replacable, I just worry about the MoBo internal wirings etc... Hardware test gave it a thumbs up