Ok thanks to all of you guys you replied. Including the flame guys. Actually like some of you said this is a forum for passionated people. We all know I will not use this computer for serious and productive work.
I decided to not buy this computer at the end...
I can agree with that, it can't do anything your Intel Mac can do. I got mine for 50 bucks...which people on here tell me is an INSANE deal. And it's gotten me into the Mac world.
But, your intel Mac can do everthing that G5 can do and then some. If you ever happen to run across a better and cheaper G5, go for it. its a super cool computer.
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See maybe doom 3 just kills that fx 5200.... well I know it kills it. Thats the wind tunnel you hear I bet.
It shouldn't affect processor load. I had a FX5200 back in high school in my Athlon 64 ( later upgraded it jr year to a 6600, best 180 bucks ever lol ), and it never got CLOSE to this hot lol, and yeah I played Doom III on it,
As far as heat goes, the FX5200 has a tiny little passive heat sink, it can't get very hot. Even under full load.
Then again, the FX5200 is a pile of CRAP. And I plan to replace it. When I built the Athlon 64, it had 4 gigs of ram, big ole hard drive, 600watt psu ect ect, very good PC for its time. And I cheaped out and bought a FX5200 for it, my dad had a 2.8gzh Pentium 4 Dell Tower with a Geforce MX4 in it. And that Geforce MX4 kicked that FX5200 around over and over again as far as performance goes.