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MP 1,1-5,1 Helpppp me! gpu question

BarUrakbaev

BarUrakbaev

macrumors newbie
Original poster
Jul 22, 2020
5
1
his every one
I have an early 2008 Mac Pro with 2.8 ghz core and recently my gpu died 😭
today I'm gonna buy a ATI Radeon HD 4870 but here's the deal tho
I have only one power cable to connect it 😂
will it work?
oh just forgot to say its a sapphire edition gpu does any one know if I have to flash it?
or it will work fine?
 
Last edited:
BarUrakbaev said:
his every one
I have an early 2008 Mac Pro with 2.8 ghz core and recently my gpu died 😭
today I'm gonna buy a ATI Radeon HD 4870 but here's the deal tho
I have only one power cable to connect it 😂
will it work?
oh just forgot to say its a sapphire edition gpu does any one know if I have to flash it?
or it will work fine?
Click to expand...
You have to connect ALL aux power connector(s), otherwise, you may damage the card.

No need to flash it, unless you need the boot screen.
 
h9826790 said:
You have to connect ALL aux power connector(s), otherwise, you may damage the card.

No need to flash it, unless you need the boot screen
Click to expand...
but will it work? I have another gpu that supposed to ship next week I just need this gpu to work until the other one will be mine
 
h9826790 said:
No need to flash it, unless you need the boot screen.
Click to expand...
According to the GPU list a HD4870 PC version doesnt work.
So it should be flashed or a Mac Version.

forums.macrumors.com

GPU Compatibility List for cMP

Content: 1. Summary 2. Information on common GPUs that can be used in cMP 3. GPU power consumption 4. Color compatibility 5. Flashing nuances 6. What to choose? 7. Useful links. 1. Summary 1.1. There are 50+ GPU types that are compatible with cMP (classic MacPro = Mac Pro 1.1-5.1/...
forums.macrumors.com forums.macrumors.com
 
If it's an unflashed PC card, it will not work without flashing and, obviously, connecting all power cables.
 
4870 will work when the driver kicks in since El Capitan.

And need both power cables for video output. I have even seen cards with a piezo buzzer what will scream when no power cable is in :-o
 
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The 4870 has been long years my standard GPU when preparing Mac Pro 1.1 with El Capitan.

As the most of them can be easily flashed with the Apple 5770 Firmware.

But not all Versions. Unflashed they work when the driver has been loaded.

Afair with Lion, too. But I am not 100% sure. Memory fades...
 
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Never had a MP1,1
Switched from G4 PowerMac to MP 3,1 to MP 4,1 >5,1 ... and cant remember all hardware and OS either...
Mountain Lion was the best :)
 
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