I'm getting 5.0 GT/s. I'm pretty close to ordering a 4870 X2.In regards to the Link Speed showing 2.5 GT/s. What do the official Apple 4870s report?
I'm getting 5.0 GT/s. I'm pretty close to ordering a 4870 X2.In regards to the Link Speed showing 2.5 GT/s. What do the official Apple 4870s report?
BEIGE and Ferrari904 - Are either one of you planning on selling your Apple 4870 then?
Link Speed: 5.0 GT/s
that's on my Nehalem with 512 MB Radeon 4870 (I want a 1GB card - that's why I'm here). So am I right in seeing that everyone here is running their flashed cards at half the speed of my official one?
Sorry, I plan on doing Crossfire in Windows with my cards.BEIGE and Ferrari904 - Are either one of you planning on selling your Apple 4870 then?
I just checked that PCI line with both of the 4870's I have here.
My original Diamond running the OEM ROM and the newer Diamond running a custom patched ROM.
Sure enough, the one that can run both screens doesn't have that incidence of the "no driver loaded" but the one that crashes on second DVI connect DOES have it.
I know that in the device tree each card exists as a parent and then as an "A" and a "B" where they two "children" are the two display channels. So for some reason, only one is lining up with the driver and the second is NOT.
Would be great if one or both of our geniuses could come by and have a look. I am sure it has something to do with that MDP nonsense.
I have developer tools on this, so if anyone wants an output from IO tree, or whatever, just say the word.
I have a feeling we may be on to the Dual Port solution !
I am a little concerned about the 2.5Gts thing. I have noticed that the 4870 doesn't bench any faster in OSX than a 9800GT/8800GTS while it screams past them in WIndows. I assumed it was immature OSX drivers.
We have to also remember that we are running these cards in an OS not specifically designed for them.
I am still hopeful that 10.5.7 will bring some changes.
EDIT: Tallest Skil just pointed out in another thread that 2.5GTs is throughput spec of PCIE 1.1 and 5.0 is 2.0.
So we may have yet ANOTHER clue.
If a 2.0 capable machine is running this card at 1.1 then obviously there are still things that driver can improve.
!IOreg )
I followed rhildinger's lead and purchased an XFX HD4870 1GB XXX Edition and used the ROM provided by him. Sleep works fine. Core Image is hardware accelerated and Quartz Extreme is supported. The full 1GB is being recognized. Link speed is at 2.5 GT/s (like everyone else's).
Thanks rhildinger, The Rominator, and netkas for your help! I look forward to OS X 10.5.7.
Good point. It may be that flashed 4870s run in PCIe 1.1 mode, enven in PCI-E 2.0 Mac Pros, which would not make a difference in older Mac Pros.It depends on your Mac - my old MacPro 1,1 uses only PCI 1.1 - so max link speed is 2.5 GT/s. Newer ones have PCI 2 which doubles the possible link speed.
Bye, jaberwocky
It's merged and ready to go, but 512Mb versions only. It should actually work for the guy in quote below.
I thought the 1GB cards work as well. Do they need a different modified EFI than the 512? I don't care about dual-link or multiple monitors.
Update: I think I am missing something and I have yet to get hands on about this. But would anyone be interested in holding my hand for the backup of the ROM currently on the card? I downloaded GPU-Z But it looks like a GUI app and I more expected it to be a CLI app. How does one use this to pull the ROM? If this is a stupid question feel free to note so and I will poke at it more.
OK I feel wonderfully stupid right about now.
Anyhow I did that and I found some giant ass block letters saying that the power supplies were not hooked up correctly. I will have to figure out why it isn't getting enough power.
I dumped the ROM using the button notated above and it dumped it to a .bin file I assume this is correct but being a complete novice I figured it doesn't hurt to ask.
I will post the ROM I get off of it once I have one that doesn't include you are a noob power me better in the first 10 lines.
atiflash.exe -p -fs -fp 0 C:\mac4870.rom
Old SSID: 0051
New SSID: 0051
Old P/N: 113-AX89100-100
New P/N: 113-AX89100-100
Old DeviceID: 9440
New DeviceID: 9440
Old Product Name: TXOFF2 WEKIVA RV770 B50701 BOARD
New Product Name: TXOFF2 WEKIVA RV770 B50701 BOARD
Old BIOS Version: 011.012.000.002.000000
New BIOS Version: 011.012.000.002.000000
Flash type: PM25LV010
20000/20000h bytes programmed
20000/20000h bytes verified
I still have not tested this and can not do so until I get the drivers. Note that I cant get them via IRC due to some network policies where I currently am.