MP 1,1-5,1 Helpppp me! gpu question

[BarUrakbaev]

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?

 

[h9826790]

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?

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.

 

[BarUrakbaev]

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

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

 

[KeesMacPro]

No need to flash it, unless you need the boot screen.

According to the GPU list a HD4870 PC version doesnt work.
So it should be flashed or a Mac Version.

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

 

[h9826790]

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

It will only works with ALL aux power connected.

 

[BarUrakbaev]

It will only works with ALL aux power connected.

but Im asking if it will half work with just one cable

 

[h9826790]

but Im asking if it will half work with just one cable

I don't know what "half work" is (fan spinning but nothing display???).

Anyway, the answer should be NO.

 

[BarUrakbaev]

I don't know what "half work" is (fan spinning but nothing display???).

Anyway, the answer should be NO.

I mean will I see display?

 

[h9826790]

I mean will I see display?

NO

 

[KeesMacPro]

If it's an unflashed PC card, it will not work without flashing and, obviously, connecting all power cables.

 

[Macschrauber]

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

 

[KeesMacPro]

4870 will work when the driver kicks in since El Capitan.

Then the GPU compatibility thread info should be updated.

 

[Macschrauber]

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...

 

[KeesMacPro]

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