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If you reside in an EU member state besides UK, import VAT on this purchase is not recoverable. This item may be a floor model or an item that has been returned to the seller after a period of use. Flashing An Amd Radeon R9 380 Pro Efi Full Details AndSee the sellers listing for full details and description of any imperfections. We may receive commission if your application for credit is successful. User Agreement, Privacy, Cookies and AdChoice Norton Secured - powered by Verisign. Just find a posted and working R9 280x Tom and chop the EFI PART OFF. What kind of performance are you getting, considering its still performing at PCIe 1.0 speeds If I get the exact same MSI r9 280x, could I just use your rom to flash mine Thanks. Flashing An Amd Radeon R9 380 Pro Efi Mac Pro 1What kind of performance are you getting, considering its still performing at PCIe 1.0 speeds If I get the exact same MSI r9 280x, could I just use your rom to flash mine Thanks Ill throw some numbers in, since I have swapped cards between a Mac Pro 1,1 and a Mac Pro 4,1. Using Unigine Heaven 4.0, 1920 x 1080, max options, I have the Mac Sapphire Radeon 7950 running at 22 FPS on both systems, a flashed and resistor removed Radeon 7970 running 24 FPS on both systems, and an unflashed (PC) Nvidia GTX 770 running at 28 FPS on the 1,1 and 30 FPS on the 4,1, for a difference of 2 FPS. At least from my numbers, your 280x should be close to my 7970, which shows no difference in performance with the bottleneck of the PCIe 1.0 bus. Mine 20 and 17 displays now support 3200 x 2000 and 2560 x 2048 pixels, which is overkill for these displays. OSX is still 10 slower than Windows, but this is a difference I can live with. Many thank to all that provided feedback, and most of all to Netkas, Rominator and Denisio What are the two kexts which need removing I have a Mac Pro 3,1 with Yosemite 10.10.1 installed. And is this the best way to rebuild a kernel extension cache in 10.10.1 Code: kextcache -prelinked-kernel SystemLibraryCachescom.apple.kext.cacheStartupkernelcache -K SystemLibraryKernelskernel SystemLibraryExtensions. The two extensions to kill are: AppleIntelCPUPowerManagement.kext AppleIntelCPUPowerManagementClient.kext Somehow I have this feeling it might fuck up other models like the 4,1 and 5,1. That way the hybrid UEFI BIOS is untouched and still available with a flip of the switch if you move the card to a PC. Mac Pro firmware is from netkasRominator bundle modified to identify as AMD Radeon R9 280. Thanks. Tried CS6 and CC - Premiere hangs on startup, AE crashes with GPUSniffer error code 3. In 10.8.5 and 10.9.3. No matter what Ive tried it doesnt work. Flashed and unflashed, named as R9 and 7970, added to openCLsupported.txt and with the file removed. Always the same error. X isnt even on supported list for PR Win version. Other Adobe programs (PS, AI, ID, ME, DW, FL etc.) work well, only these 2 dont want to. What left is to test CC in 10.9.3. Quote from: tsumeawase on April 20, 2014, 03:54:14 PM Would somebody please post Specviewperf 12 benchmark results for EFI flashed 280x Preferably both in OS X Hi do you have any updates whether or not the r9 280x works in AE Thanks. My computer is a Mac Pro 2006 (upgraded to 2,1 with 10GB of RAM). I tried with netkas script, but it gave error and after flashing it didnt work, so I had to reinstall the backup and tried modifying the EFI part with Hex Fiend as sugested from Rominator with his MAC7970.rom. Everything works great since then, boot screen, no problems, but it is identified as HD 7970. I tried to modify the references to 7970 in the rom file before flashing but I had not luck, and as I am not able to make the script work (I flashed previously a HD 5770 without problems but I cannot now) modifying efiromheader.rom and 7950mac.efi does not work for me, so could you please give me any advice about how to change it. I now that it is only a cosmetic change, but I would appreciate any help. Thanks again to all of you who support these forums and give us tools to maintain our old mac pros so powerful. Regards PS: I can attach the original or modified rom if anyone is interested on it.
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