2012 Mac Pro + SAPPHIRE Pulse Radeon RX 580

[rakesh0385]

I suggest you read the thread before posting, just a common courtesy to other users.

Hi Squuiid,

I understand it is frustrating to answer a repeated question but I was wondering if I can buy locally. The link for ebay is expired (relisted one is from China). What makes you think that I haven't read it?

 

[Squuiid]

Hi Squuiid,

I understand it is frustrating to answer a repeated question but I was wondering if I can buy locally. The link for ebay is expired (relisted one is from China). What makes you think that I haven't read it?

Fair enough. The eBay.co.uk item is indeed form China but that's the best you'll get in the UK. It takes about a week to arrive, I've ordered 4 and they're very well made cables.
I don't think there is anyone local who sells these.
[doublepost=1509716629][/doublepost]

The RX 580 should be running 19-20 seconds on bruceX. 38 seconds seems a bit high.

Is that in Sierra or High Sierra?

 

[devon807]

Fair enough. The eBay.co.uk item is indeed form China but that's the best you'll get in the UK. It takes about a week to arrive, I've ordered 4 and they're very well made cables.
I don't think there is anyone local who sells these.
[doublepost=1509716629][/doublepost]
Is that in Sierra or High Sierra?

Both Sierra and High Sierra according to my tests.

 

[MarkC426]

Hi Squuiid,

I understand it is frustrating to answer a repeated question but I was wondering if I can buy locally. The link for ebay is expired (relisted one is from China). What makes you think that I haven't read it?

I had this same issue trying to find a UK seller and I wanted a good quality cable, the ones on amazon where cheap crap.
I ordered from the US ebay site, logging in with my UK details (as I could not find it on the UK site), and received within a week (from china).
This cable is so solidly made

 

[StuAff]

The ModDIY one is excellent too. https://www.moddiy.com/products/App...tandard-PCI%2dE-8%2dPin-Video-Card-Cable.html

 

[vetruvian]

I am in the US, is this the same thing?

https://www.amazon.com/GutsParker-6...rd_wg=Ah4z1&psc=1&refRID=ZAY1M8RDR73EDDZE69NK

DO NOT buy the GutsParker one. I originally installed thiat one and at the beginning of POST, it trips the PSU. I am lucky that the PSU tripped. Could have easily fried my PSU/card/board. I would go for the below one instead:

https://www.amazon.com/gp/product/B0749DQ3VX/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

Hope this helps!

 

[devon807]

DO NOT buy the GutsParker one. I originally installed thiat one and at the beginning of POST, it trips the PSU. I am lucky that the PSU tripped. Could have easily fried my PSU/card/board. I would go for the below one instead:

https://www.amazon.com/gp/product/B0749DQ3VX/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

Hope this helps!

I had issues with the GutsParker one as well, mentioned it on another thread. Mine fell apart.

 

[g8rduc]

Resurrecting this thread. Any updates on the RX580 and it's comparison to other cards?

 

[Squuiid]

Resurrecting this thread. Any updates on the RX580 and it's comparison to other cards?

http://barefeats.com/early_vega.html
http://barefeats.com/vega_resolve.html

 

[g8rduc]

http://barefeats.com/early_vega.html
http://barefeats.com/vega_resolve.html

Thank you, sir.

 

[macjunkie2013]

Finally found a RX-580 to put into my cMP(easy to find at CryptoMiner 2-3x prices, hard to find at close to MSRP ~$300).

The power cable can be found here:

https://www.moddiy.com/products/App...MI8Yzb8NmA2QIVAdlkCh2QbQhlEAQYAyABEgLLAvD_BwE

or

https://www.aliexpress.com/item/100...07.html?spm=a2g0s.13010108.99999999.11.f4tbZo

or

https://www.ebay.com/itm/18AWG-Dual...804408?hash=item2392fb6578:g:A74AAOSwmtJXbipz

 

[carambo]

The ModDIY one is excellent too. https://www.moddiy.com/products/Apple-Dual-Mini-PCI%2dE-6%2dPin-to-Standard-PCI%2dE-8%2dPin-Video-Card-Cable.html

Dual MINI 6pin ?? Is that correct ? A mini pin connector doesn't fit the normal 6pin of the Macpro

 

[h9826790]

Dual MINI 6pin ?? Is that correct ? A mini pin connector doesn't fit the normal 6pin of the Macpro

The Mac Pro only has mini 6pin output, there is no normal 6pin on the Mac Pro.

 

[carambo]

The Mac Pro only has mini 6pin output, there is no normal 6pin on the Mac Pro.

Oups, my bad, I forgot this, Txs

 

[downhillpony]

You will not get the boot screen with an RX580, and the R9..... description is normal in Sierra.
I believe in High Sierra it lists correctly, as its the card in Apple's eGpu.
This is the same card I have in my mac.

with these cards if I hold down the option key at start up will it still show my boot drive options ?
or is that part of the boot screen and not accessible .

 

[StuAff]

with these cards if I hold down the option key at start up will it still show my boot drive options ?
or is that part of the boot screen and not accessible .

No boot screens, because these cards do not have Mac firmware. Until the drivers in the OS load, your screen will stay blank. Recovery partition should work, with the Command+R shortcut on startup. Only way to see boot screen is to have a card with Mac firmware, and either a second monitor attached to that card, or swap the cables.

 

[jacekkr]

Does anyone know what the performance of this card is in an early 2009 4.1 which has been flashed to 5.1?
Looking at the specs the PCI bus it seems the same Double-wide, 16-lane PCI Express 2.0 graphics slot but I remember reading in another forum that the performance of graphic cards in flashed Mac Pros was not the same. any thoughts would be greatly appreciated.

Mac Pro 5.1
https://support.apple.com/kb/SP652?locale=tr_TR
Mac Pro 4.1
https://support.apple.com/kb/sp506?locale=en_GB

 

[vetruvian]

Does anyone know what the performance of this card is in an early 2009 4.1 which has been flashed to 5.1?
Looking at the specs the PCI bus it seems the same Double-wide, 16-lane PCI Express 2.0 graphics slot but I remember reading in another forum that the performance of graphic cards in flashed Mac Pros was not the same. any thoughts would be greatly appreciated.

Mac Pro 5.1
https://support.apple.com/kb/SP652?locale=tr_TR
Mac Pro 4.1
https://support.apple.com/kb/sp506?locale=en_GB

I can tell you that in a 2010 5,1 I get between 133,000 and 138,000 on Geekbench Metal/OpenCL compute benchmarks. The PCIe specs look identical between 4,1 and 5,1 so as long as you place the card in the bottom slot, you should see similar results. I realize this doesn't specifically answer your question, but at least gives you a baseline for what you should expect.

 

[jacekkr]

I can tell you that in a 2010 5,1 I get between 133,000 and 138,000 on Geekbench Metal/OpenCL compute benchmarks. The PCIe specs look identical between 4,1 and 5,1 so as long as you place the card in the bottom slot, you should see similar results. I realize this doesn't specifically answer your question, but at least gives you a baseline for what you should expect.

Sweet! Thank you - good to know! Major boost from the stock ATI Radeon HD 5870 1024 MB. Much appreciated.
[doublepost=1532032348][/doublepost]

This is the correct cable

I just bough one of the cards and it only has one 8 pin power socket that I can see.
How come a dual cable is necessary? Or am I am missing something?

 

[h9826790]

Sweet! Thank you - good to know! Major boost from the stock ATI Radeon HD 5870 1024 MB. Much appreciated.
[doublepost=1532032348][/doublepost]
I just bough one of the cards and it only has one 8 pin power socket that I can see.
How come a dual cable is necessary? Or am I am missing something?

That “correct” cable only has one 8pin output.

 

[bookemdano]

Sweet! Thank you - good to know! Major boost from the stock ATI Radeon HD 5870 1024 MB. Much appreciated.
[doublepost=1532032348][/doublepost]
I just bough one of the cards and it only has one 8 pin power socket that I can see.
How come a dual cable is necessary? Or am I am missing something?

The card's single 8-pin power socket requires more power than one of the Mac Pro's 6-pin sockets can put out. You need the Y-cable so that both 6-pin outputs can supply power to the card.

 

[jacekkr]

That “correct” cable only has one 8pin output.

Thank you!
[doublepost=1532034725][/doublepost]

The card's single 8-pin power socket requires more power than one of the Mac Pro's 6-pin sockets can put out. You need the Y-cable so that both 6-pin outputs can supply power to the card.

Oh I see! Duh! The two 6 pins go into the mother board and the 8 pin into the card, right? And they're all female?
I was confused because I have been looking at other cards which have 2 sockets on the card in a combination of 6 and 8 pin sockets so I got a little confused there. Thanks for making it clear.
[doublepost=1532035896][/doublepost]Hmmm The dual mini 8 to 6 cable seems difficult to source: all the links above have expired or are unavailable. ModDiy seems to be restructuring and are not accepting orders. Don't really want to wait till September for a slow boat from China on eBay. Anyone have other sources?

I found this one on Amazon - is it right cable?
https://www.amazon.com/PCIe-Power-C...PCIE+to+Dual+Mini+6Pin+GPU+Power+Supply+Cable
[doublepost=1532036055][/doublepost]I found this one on Amazon - is it right cable?
https://www.amazon.com/PCIe-Power-C...PCIE+to+Dual+Mini+6Pin+GPU+Power+Supply+Cable[/QUOTE]

Sorry - I just saw it is 6 pin all round.

Any other sources anyone?

 

[crjackson2134]

I would say no.

That cable appears to be a dual mini 6 to a full size single 6.

 

[jacekkr]

I would say no.

That cable appears to be a dual mini 6 to a full size single 6.

Thank yes, I noticed that right after I posted and apologised.

Do you have any idea where I can find the cable? Seems strange that it is out of stock or discontinued everywhere I look.

 

[bookemdano]

Thank yes, I noticed that right after I posted and apologised.

Do you have any idea where I can find the cable? Seems strange that it is out of stock or discontinued everywhere I look.

Look at post #36 in this thread for three options. The ebay listing expired but was relisted here: https://www.ebay.com/itm/18AWG-Dual...Splitter-Power-cable-for-Mac-Pro/153027951416