as most of you know, I plan to do heavy and extensive upgrades to my MDD. For $70 OBO i can get a Radeon X800 XT for my MDD (Which according to the seller is NOS G5 Cards and TESTED on the MDD to work and will include the power cable for the card. But My PowerMac has one thing I don't see any other mac's ever have; A Powered USB 2.0 Card. Part of my upgrade plans are mSATA SSD (as suggested and done by others on here) And i ill then buy a 500GB or larger HDD for external use storage so this will not be a issue at the later point but as of right now it is. Since the DVI port on my stock GeForce 4MX has somehow died (Have to use a DVI-VGA adaptor to get video at all) the GPU is the top of the list at this point. So here is the point in this post: My PowerMac has the CD-ROM Drive stock from my eMac as well as a SuperDrive (that the previous owner put in it), It has all four HDD bay filled and used, It has 2 fans in the rear behind the CPU heatsink (since it is rather pointless IMO the side ODD Fan in the case was move to the front and had the wire extended to power off the 12v PIN on the logic board) My USB 2.0 Card has a floppy drive style power plug on it. Although it will work without the power plug used i have it hooked up, (It wouldnt be there if it werent needed). I made a Molex Y connector and a Molex extension cable to power the USB Card. (The end where the extension plugs plugs into a Molex to LP4 (floppy) Connector is where i would power the GPU). With 4 HDDs, 2 ODDs, 2 rear fans running at 12v as well as the fan in the front running 12v PLUS the USB 2 card also being powered, Would there be enough power left in the power supply to properly supply a X800 XT as well? The reason this concerns me is this: With all four HDDs powered up and used (with the USB Card being powered with the PSU) When i transfer LARGE files over USB 2.0 It will transfer say between 500MB and 1GB (Depending on file size) the transfer will just freeze and will sit there as the Estimated time evenentually climbs up to over 48 hrs. I have found 2 ways to remedy this. 1) Unplug the PSU Power from the USB 2 card. or 2) unplug 2 hard drives from power) Obviously the latter will not be a issue once i get a SSD however how much power DOES the X800 draw and in it's current state could the PSU actually give the GPU the power it needs?