Radeon R9 280x on Mac pro

Well,after a long road I got rid of the XFX card as it's rom has been messed with to the point of just not being happy in a Mac Pro even after flashing So stay away from XFX R9 280xs.

I bought a Gigabyte R9 280x and it worked out of the box except it does not ship we the proper cables. You need an 8 to 6 pin and a 6 to 6 pin for it, it only ships with molex cables. Then thanks to a nice guy on Netkas wop sent me a package with instructions. I flashed the card and finally I have a working r9 280x with boot screen and it's running great. Im running three monitors off it at once with one being a 30 inch apple display. I have not tried to use the hdmi port but I think it will work as long as I'm not using both mini display ports. He said not to share the efirom because the rom can vvary from different versions of the same card. Under Apple system profiler it says R9 280 x as well. It was a long road but now my 2009 8 core is now a 2010 12 core with OWC mercury accelsior boot drive and a R9 280x and is performing nicley and it's about a third the price of the new Mac 8 core and outperforms it on the GEEKBENCH multi processor score buy a tad 🙂

Lance, I saw that you have a R9 280X card, I just bought a MSI card with the same chip that should be delivered tomorrow. Could you send me the ROM image of your card so I can flash mine for my Mac Pro? I would really appreciate it. In case, my direct email is gabrieleatgmail.com. Thanks a lot to everybody!

Hello.

I am running a 2009 MP which has at the moment a gtx 650 and the default, is it gt 120? Has the inatek usb3 (no power hookup) and planning to hook the imac airport card to usb when the route to take is clear (not that handoff or the like is that great but just for fun).

Will swap the gtx 650 with a r9 280x if the power is going to be safe, I have a sata to two pcie six pins that came with the card and have ordered a 6 to 8 converter. Would it be ok if the 8 pin came from the motherboard and the 6 came from the sata? Would I want to flash the card and take out the default which gives the boot screen?

TO SVG, using my efi rom may not work for you and could render your card unusable because its not the same exact card. I would go on nets.org and see if anyone has flashed the same card. The guy who helped me with mine said the BIOS can vary from card to card, take XFX for example, that was a nightmare. So I could send it to you but you totally use it at your own risk and you must back up your rom so you can refresh it back to the card if mine fails but sometimes that does not even work. I could also put you in touch with my guy who made me an EFI rom and he may be able to do it for you, I threw him some bucks on paypal as a thanks.

My video on flashing a Gigabyte R9 280X for your viewing pleasure.

https://www.youtube.com/watch?v=oi-eppgfYwg

Hey Sandy, you can run the power as you said or just use the power on the logic board with one 8 pin to 6pin link below and don't just buy any 8 to 6 pin adapter cable this one works and and a regular 6 to 6. It works fine on my system. The card will work without flashing but I like it flashed so you get the boot screen. You could use your older card as well and still get the boot screen and run more monitors. I used to do that. I have not had any power issues and I have 4 internal eStat drives, Pro Tools native card, OWC Mercury accelsior SSD pie card for boot drive, plus an external hard drive bay with 3 more eSata drives and one external SSD Samsung evo connected via Seat 6g from the OWC card. No power issues. I also upgraded my processors to Xeon 5650s so now have 12 core 5,1 after the firmware update and 1333 ram 32 gigs. 4 months of no issues.

http://www.amazon.com/Apple-PCI-E-Express-Power-Cable/dp/B009KT3ECI/ref=sr_1_1?s =electronics&ie=UTF8&qid=1422127199&sr=1-1&keywords=PCI+Express+6+pin+to+8+pin+P ower+Adapter+for+mac+pro

Sounds good. Thank you

I would go on nets.org

I think you meant netkas.org.

Nets.org is a basketball site. Auto-correction strikes again!

yes www.netkas.org

does the card come with two 6-pin input pin grids?

what aux power connections did you make to the card?