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sorry for late reply i dont come here very often.

so basically someone over there did boot a xs3.1 just fine with macpro 5.1 140.0 firmware but he lost hardware xserve fonctionality such as led planel on front here is what he say :

Here it is ... Hope that can help, I already flashed it with a MacPro 5.1 even with boot room 140.0 booted fine showed as a MacPro 5.1 and I could put 6 core and 12 core same thing as the Mac Pro. Now you lose the Hard Drive led's activity, and the front panel led too, so I did revert back to Xserve original rom 2009, Installed Sierra, and High Sierra on the other, Got back the LED HD's activity nice I love it, and I managed also to bring back the LED front Panel ... Where It used to be a time where the front panel was working OOB under the Snow and Lion 10.7.5 era with Server install, but I found a way to run the LED's even under ML, Mavericks and UP to High Sierra...

so i don’t understand if he had remove the 6 core and put back the 4 core to boot into xs3.1 firmaware, or if reverting to x3.1 actually kept the processor compatibility....
pending on his reply...

Hi there

I've got crazy problem with my HIS IceQ Radeon 7950 3GB.

At beginning I wish to say I've successfully done flash MIS 7850 and PowerColor 7950.

So with IceQ problem is.... fans full on (because I guess in Windows it is say no reading temperature which shows 0 degree) - but I got Apple Boot Logo and works great in macOS and Windows - just fans full on - no matter if with UEFI or without.

Then I got BIOS from...... my other IceQ (same looking and same model) but with little bit different CRC checksum - and... fans become quiet on this BIOS - ....... BUT it does not boot to macOS - and to be more crazy - it is booting to Windows! And again - does not matter if with or without UEFI.

At the moment I've stuck with BIOS switch 1: Apple Boot Logo and fans full on and BIOS switch 2: quiet fans BUT able to boot to Windows only.

I've downloaded even official BIOS from https://www.techpowerup.com/vgabios/135633/his-hd7950-3072-121205       no success

i had the same card  .. until it died earlier this year. Nice ! Best cooling solution I've seen. Flashed nicely.

1.   Set the BIOS switch to position
2.   DUMP and SAVE the ROM from position 2 eg :  HIS 7960 Pos 2 dumped ROM

3.   Flash the HIS again with your modified EFI MODIFIED rom

It should now work as intended.

If you STILL have problems .. PM me.  My ROM definitely works.

yeah, i'd love to but they tossed me out for correctly arguing that the nMP 6,1 was a turd with no upgrade path

i was right, the moron who drives around with Five Flats was 100% wrong, but i won't ever post there again

anyhow, did someone try my quick and dirty "flash it as 5,1" method?

i got the cable to connect boards together but not found time

on 1,1 or 2,1 there is no reason to touch r17

Did Rominator fall off the face of the earth?

yes, in fact I did

but with the depressing state of Mojave and Web drivers, i may finally have time to re-open this can of worms

did somebody else already figure it out?

MacPro3,1.

macOS Mojave works normally. GTX 680 supported perfectly with two displays (DP + DVI):



GTX 980 not supported still yet... Only one display recognized. On the developers forum, guys says that Web Drivers for Mojave will never be released...

Hello ,


i am kindly asking your help as i yesterday tried first time flashing graphics card on mac pro and miserably failed.

proceeded the following way:


MacPro1.1 > in Bootcamp in Downloaded "GPU-Z" and saved current ROM from card 5770 ("Juniper.rom") > from Macrumors trusted member i "found" .Rom which supposedly function for this port mapping with 2xDVI/HDMI/DP - downloaded .rom ("5770e2.rom or similar) > in Bootcamp i downloaded WIN ATIFLASH > loaded .ROM and flashed


after reboot the card is no longer seen by macpro, neither in bootcamp nor in osx.
it could be that the .ROM i was using was meant for 64-BIT MacPro? or why else it could fail?


How could i now reflash the card with only having the MacPro 1.1/2.1 and no proper PC with integrated graphics or with 2 fullsize PciE Lanes Available?


Thank you very much for your help and input.

My Thunderbolt Display does not work with the 765m.  I'm pretty sure it was plugged into the first (closest to USB) ports but I'll try it again.

My other Thunderbolt devices (HDD's, Dock) work fine.

Also, I got no display in Windows 10 Bootcamp.   Do I need to install the Nvidia drivers before booting with that card?

J
With the latest EFI firmware update for the Mac Pro 5,1, you will get 5GT/s without having to do any resistor mod. The Mac Pro 1,1 is limited to PCIe 1.0, I believe, so your max throughput is 2.5GT/s regardless.

I just have the MP (1.1)2.1 left, and am awaiting an R9 280 (unflashed). so either way, with resistor mod or withouth, i will only get 2,5Gb/s?
Then there is probably no need to risk the resistor mod, or are there any benefits?
If i would flash the card (in my understanding only possible if someone is offering an EFI, or am i wrong?), would i get additional benefits , next to the bootscreens?

The R9 280 i am awaiting is a Gigabyte windforce model with 3 fans.

Thank you very much

He mentions getting the Dell 1GB 6770M working with a modded VBIOS, but nothing about the 780M.

Does anyone have modded VBIOS for GTX 765M and/or 780M that gets the thunderbolt ports working?

As far as I have seen, with testing GTX765m, thunderbolt looks to work fine.
I have not tested a thunderbolt device yet, but I don't see why it should not work..

I got only 1 external display working, using an TB-HDMI adapter..
Second thunderbolt/mini dp output was not working at all for a second monitor here..