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<blockquote data-quote="pigoo3" data-source="post: 1620246" data-attributes="member: 56379">Yes…that's not too bad for a Mac Pro power supply.&nbsp; I think that I've seen them closer to $140-$150 (of course you want this used Mac Pro PS to be better than the used one you already have.&nbsp; Also keep in mind that stock 1st gen. Mac Pro's are selling for $250-$300.&nbsp; So a replacement PS for $100 is a good chunk of that.There are basically two choices (assuming you currently have 2 x 2.66ghz dual-core cpu's…4 cores total).&nbsp; Either two 2.66ghz quad core x5355 cpu's…or two 3.0ghz quad core x5365 cpu's (8-cores total in either case).The x5355's are selling for about $40-$50/pair…the x5365's are selling for about $90-$100/pair.&nbsp; So your choice depending on your budget.&nbsp; I think that the 3.0ghz cpu's give about a 12-15% performance boost.- Why so many videos cards?&nbsp; How many monitors do you plan on running?- How much ram does it have?&nbsp; You could upgrade the ram if it doesn't have much.- I think that we were talking about OS 10.6 on this computer.&nbsp; You could install 10.7.* Nick</blockquote>

[QUOTE="pigoo3, post: 1620246, member: 56379"] Yes…that's not too bad for a Mac Pro power supply. I think that I've seen them closer to $140-$150 (of course you want this used Mac Pro PS to be better than the used one you already have. Also keep in mind that stock 1st gen. Mac Pro's are selling for $250-$300. So a replacement PS for $100 is a good chunk of that. There are basically two choices (assuming you currently have 2 x 2.66ghz dual-core cpu's…4 cores total). Either two 2.66ghz quad core x5355 cpu's…or two 3.0ghz quad core x5365 cpu's (8-cores total in either case). The x5355's are selling for about $40-$50/pair…the x5365's are selling for about $90-$100/pair. So your choice depending on your budget. I think that the 3.0ghz cpu's give about a 12-15% performance boost. - Why so many videos cards? How many monitors do you plan on running? - How much ram does it have? You could upgrade the ram if it doesn't have much. - I think that we were talking about OS 10.6 on this computer. You could install 10.7. * Nick [/QUOTE]

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