OskarH Posted May 4, 2017 Share Posted May 4, 2017 (edited) Hi, Im trying to get my Sapphire Radeon HD 5450 to work in my Mac Pro 3.1. I found this thread and I tried flashing the bios onto my card with no luck. http://www.insanelymac.com/forum/topic/311454-efi-bios-for-sapphire-hd5450/ Im getting an error about the ROM chip not being big enough, is there a smaller ROM I can flash? I also have a Dell Radeon HD 5450, which i think has a bigger chip as it shows up with the same chip as my 6950 in ATIWinFlash (the 6950 uses 128kb roms). Does anyone have the efi files for the 5450, I think I can integrate them into the ROM myself. EDIT: I tried using this to update the rom files of both the dell and the sapphire: http://www.insanelymac.com/forum/topic/299614-asus-eah6450-video-bios-uefi-gop-upgrade-and-gop-uefi-binary-in-efi-for-many-ati-cards/ Im still getting the same error: C:\Users\Oskar\Downloads\HD 6950 & 5450 EFI\atiflash_271>atiflash -fm -p 1 sapphire-uefi.rom Old SSID: E145 New SSID: E145 Old DeviceID: 68F9 New DeviceID: 68F9 Old Product Name: CEDAR C02701 REVB SAMSUGN DDR3 64MX16 New Product Name: CEDAR C02701 REVB SAMSUGN DDR3 64MX16 Old BIOS Version: 012.015.000.001.000000 New BIOS Version: 012.015.000.001.000000 Flash type: PM25LV512 Can not flash a 0x21 length image into a 0x10000 length rom!ROM not erased ERROR: 0FL01 C:\Users\Oskar\Downloads\HD 6950 & 5450 EFI\atiflash_271>atiflash -fm -p 2 dell-uefi.rom Old SSID: 2126 New SSID: 2126 Old DeviceID: 68F9 New DeviceID: 68F9 Old Product Name: C09001 DDR3 64Mx16 New Product Name: C09001 DDR3 64Mx16 Old BIOS Version: 012.020.000.035.038078 New BIOS Version: 012.020.000.035.038078 Flash type: M25P05/c Can not flash a 0x21 length image into a 0x10000 length rom!ROM not erased ERROR: 0FL01 Edited May 4, 2017 by OskarH Link to comment https://www.insanelymac.com/forum/topic/323399-efi-for-sapphire-radeon-hd5450/ Share on other sites More sharing options...
OskarH Posted May 5, 2017 Author Share Posted May 5, 2017 UPDATE: I was able to sucessfully flash my Radeon HD 7750 using the tool I linked above and ATIWinFlash. However, when I install the card in both my Mac Pro 1.1 and 3.1 I get no signal (not even when they are past the boot screen). Does anyone know how to fix this? Link to comment https://www.insanelymac.com/forum/topic/323399-efi-for-sapphire-radeon-hd5450/#findComment-2417999 Share on other sites More sharing options...
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