How to Flash a PC Radeon 7950 for a Mac Pro so you get Boot Screens

**Using my links performs the search for you and helps support me and pay for my little projects** This is not my work. I am just spelling it out in great detail on how to do it. Disclaimer: you didn&hear this from me. I¬ liable. You found all this info on an old thumb drive in the trash somewhere. :) In that thread, post is the link to the script you need to run on OS X to take the ROM file you dump from your card and put it together with the EFI portion so you get the boot screen on a Mac Pro. The one you see when you hold down the Option key to select a boot drive. I used an MSI Twin Frozr III 3GD05/OC and the UPC label of that card is shown in the video. Steps to take before watching this video: I assume you have your card installed properly. I had two six pin power cables already in my Mac Pro from my Radeon 4870 and the MSI card I used came with a 6 to 8 pin adapter. The box says two six pin adapters are ok and based on my research that&fine for the max power draw of this card. 275 watts if I remember correctly. Make sure the tiny BIOS switch at the top of your card is in the &position. Consult the manual. :) Here&the text version. The video explains in a little more detail and shows the script running, some stuff on WINFLASH, etc. 1. Get a blank USB thumb drive. It can be small, 1 gig is plenty. 2. Format the thumb drive using Disk Utility and rename the drive to &without quotes. No spaces in the name!! The script that creates your ROM won&work with...