终于成功了

折腾了好几天，7970刷成mac 280x 完美
回头再跟大家分享

神啊 !

厉害啊，快点分享，造福坛友吧。

考虑要不要再换mac pro了
3.1用10.11 显卡使用完美，但是接显示器不能把4k缩放到1080P上，字体太小
用软件安装到10.13 4k只能30hz，换了多张显卡都是一样，原来是那个带的驱动不对
还是要用原生的系统

https://support.apple.com/zh-cn/HT206587
这个界面用mac pro 3.1的时候没有，导致4k显示器不能显示到1080P上，准备暂停折腾

跟这个贴，继续研究2.5GT跟5GT的修改
All apply ONLY to cards running in actual Mac Pro 3,1 or later.
1. An unflashed 7xxx card runs at the PC BIOS speeds for Ram and GPU. It runs at 2.5 GT/s on the PCIE bus in both OSX and Windows.
2. A card flashed with the pure Mac 7950 EFI & BIOS that I posted will run at the Mac speeds in both OSX and WIndows and at 2.5 GT/s on the PCIE bus.
3. If you COMBINE your PC BIOS with the EFI from Mac 7950 and flash your card (hint...look at title of the thread) you will have a card that runs at the PC BIOS speeds in Windows & OSX but still runs at PCIE 2.5 GT/s in both.
4. If you buy a Mac 7950 it will run at PCIE 2.0 speed of 5.0 GT/s in both OSX and Windows.
EFI introduces the card at system boot. It is run from the PC BIOS once driver loads. So the EFI JUST ADDS BOOT SCREENS, it does not affect the card after boot, other than if it assigns a frame buffer personality.

樓主折騰的历害....

楼主精彩，生命多多折腾

上次高兴过头了，标题写的不对
显卡没有5GT还不是完美成功，
实际上就680成功了，但是680不能单插dp 4k启动
7970就剩没有显示5GT，目前查了几天网络，都说要改电阻
我动手能力完全不行，还在研究中
目前有发现贴吧里面专门卖7970那个家伙有成功5GT的，只是一年了连刷显卡都舍不得分享
继续慢慢折腾，反正家里电脑多

The 7950 Mac EFI is NOT compatible with the Windows 10 EFI mode.
The solution is simple, install Windows in legacy mode.
难怪刷的280X开机不能显示，目前pc机是win10 uefi模式

老板，有闲置的主板不?

大佬，你的机子都哪里淘的啊？想上5.1的561或者771，发现淘宝和闲鱼的基本洋垃圾拼装机多

求bios，[email protected] 谢谢

有需要的吧友们尽管找我要，一分钱都不用