demitri, the power cable that is/was plugged into your stock X1900 should work just fine. In fact, that's exactly what I did: roll one myself, and take the other from my old, dying X1900.
Does anyone know why my Cinebench r10 OpenGL scores for the 4870 are practically identical to my old x1900xt?
Cinebench doesn't make the GPU work particularly hard. Notice that it always runs at the same small (1024 x 768?) resolution, and it isn't using any advanced shading/lighting effects like you'd see in a modern 3d game. And it's not like the card is being asked to draw many frames per second. A 4870 isn't going to be much faster than a 1900 for these purposes. All the extra muscle in the 4870 is going unused.
Cinebench is more of a test of your CPU power.
Hello Rominator , i have the 4870 1Gb Board , but i just cant make it to work , can you help ? attached is the pc rom from my 4870 1Gb , you can email me the mod. rom at waimtrp @ gmail dot com , thanks a lot
I see that many of us managed to do a successful flash. How noisy is the 4870 with the mac firmware? I am intersted mainly in the ones equipped with the stock cooler. IDLE noise is the most important as I don't want to be annoyed while working with audio...
Thank you very much for the insight on 4870 noise! Apple must have changed the fan control profile that the card runs warmer but also runs quieter when idling. In my PC I wouldn't call my MSI 4870 1Gb card silent compared to Mac Pro standards. I have a 128K bios, so I might try to flash it.
But I have another quetion that keeps buging me Is the Realtek sound device still available in Boot Camp? It is a 8 channel HDMI audio output integrated on all 4870-s. Or in Os X does anything appear about this in device manager?
This is a bit off, but somewhat VGA related. Apple is going on my nerves not willing to support Blu-Ray. No authoring software, no player, no HDCP in displays, Mini DP and probably 4870 not allowed to carry audio, no proper 24hz support, unable to manually disable a display when I need to, etc... Come on Apple, how can a Mac lag behind regarding multimedia features? Sorry for this rant, it had to come out.
Hello!
so far, my experience with flashing the card was rather frustrating, but based on what I experienced I am not sure if it was the fault of the flashing process at all.
Here is what happened:
As many others, I have bought the Sapphire HD4870 1GB, "Toxic" Version, PN: 288-20E85-T30SA, SKU: 11133-14-20R
I put the card in my mac pro, slot 2 which is replacing my (flashed) 8800GT and booted into Windows (without ATI Drivers) So far everything seemed to work and I made a backup of the orgininal ROM via GPU-Z, with a file resulting in 128KB.
Next, I made a custom ROM using the technique described by pipomolo42 on my laptop and burned a modified FreeDos version to CD. (Tried to make it bootable on a stick, but that didn't work.)
Then, I burned this ROM to the card, which seemed to work flawless. ROM Version remained the same anyway due to my handmade ROM. And boy I was happy as soon as I saw the grey Apple Logo when I restarted my machine!
Seems my joy was somewhat early.
Next step was to install the OS X gfx drivers and then the strange thing happened: while rebooting, the screen went completely black! This happened just before the login screen would appear, the Mac was responsive, but no image on both DVI ports!
Soooo, after a while I tried the same with Windows Vista, and actually installed the newest Catalyst Drivers (without these, the gfx card still showed a picture). But as soon as I rebooted with these drivers, I also get a blank screen, and also immediatly before the login screen would appear - only this time in windows Just like in OS X this seems to happen when the driver is actually initialised.
So I was completely puzzled at this moment, and after trying a lot of useless things I decided to give up and put back the orginial ROM on the card (I also had used another ROM I found here for a nearly identical card, but this gave me exact the same results as with my custom ROM)
And guess what? For the last time I tried to boot into Windows, this time with my Drivers active and the original ROM ..... and there was a blank screen again. Booting in Safe Mode gave me a picture again ......
So, in the end my problem has nothing to do with the BIOS?
I only have 2 explanations for this:
1) Card was out of order from the beginning
2) The culprit is my DVI 2 ADC Adapter (from Dr. Bott) I use to drive my original 22" Cinema Display. Since these adapters are relatively complex, there could be a problem - in theory. But my 8800GT has worked without problems, so I am really clueless.
Any ideas & help would be really appreciated!
Okay, here it is.
Better to post it here than email it. Maybe someone else has same card too.
Let us know how it goes.
If you can test Dual DVI and see the GTs speed on "PCI Cards" property, would be helpful.
I have a Mac Pro early 2008. And no, the machine does not seem to crash on both Vista64 and Mac OS 10.5.6, just a black monitor when the login screens should appear. (while booting, I still can see the grey Apple and the Windows Logo). At least I can use my keyboard to shut down OS X properly. And with both OS, I get a picture when no drivers are installed! Before the blank screen appears in Vista, I can clearly see the GPU trying to switch resolutions, on the Mac side, I can see a very short fade into blue before screen goes blank. So I think something happens when the card is initialised by the driver. But the strange thing is that this a) seems to be the identical behaviour in both Windows and Mac OS and b) this also happens with the original GPU ROM in Windows (of course Mac OS screen is always blank then)
I had issues with the DVI to ADC bridge convertor (I have apple's branded convertor -not Dr, Bott - for a 22" Apple display). I had to unplug the power brick and plug it back in when the machine was on. Then I held the 22" inch display's power button (bottom right side of display) and then the image came up. I think the issue is probably the DVI/ADC convertor and/or the ADC display.
thx a lot for this tip! do you need to do this every time or just once?
It happens every once in a while. I think it is a Apple's 22" display issue. Could be a faulty board in the display. I have other display's that never have the problem. I am a bit sick of Apple and their proprietary display connections, hence my reason for flashing a non-apple 4870.
good news guys I have for you:
1) 4870x2 with patched atiradeonx2000.kext work with qe/ci (if framebuffer works... depends on model as usual)
2) we managhed to finish writing a kext which calls ASIC_init for card (that's what efi(in case if efi rom present)/bios does for card durring POST) ,so it opens a way to run ati cards on macpro without flashing it (u still need to have card which will be used to boot macpro), it's in alpha stage yet, http://netkas.org/?p=94
I am eager to get a 4870x2 running