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#31
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Re: GTX 680 or HD7950 vid card and HDX-3 - how do i do power for the cards?
At last, i go with the sata route, cause this is safe... You have to break the plastic clip...
The HDX Card needs <50w and the sata port of the MP delivers up to 55 watt... So there will be no problem... I am losing a hd/sata SSD Port, but my GCard works great with both powerconnectors from the cmp |
#32
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Re: GTX 680 or HD7950 vid card and HDX-3 - how do i do power for the cards?
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Originally Posted by The Egg: Be a Pro and stop being a Tool! Mac Pro Rack (7,1) 16-core 3.2gHz Intel Xeon W OSX Catalina (10.15.4) 8TB Mac OEM SSD System Drive (3) 1Tb 7200rpm audio hard drives 192Gb RAM Radeon Pro Vega II Video Card 2 Avid HDX Cards 2 Avid 8X8X8 HD I/Os; 2 Avid 16X16 HD I/Os PT Ultimate 2020.3 |
#33
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Re: GTX 680 or HD7950 vid card and HDX-3 - how do i do power for the cards?
OMG! Thanks for the report. Hope everything is ok now with your computer. All the best!
Sent from my iPhone using Tapatalk
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http://www.ricardomosca.com Hackintosh, 3,7 GHz 10-Core Intel i9, 64 GB 3200 MHz DDR4, OSX Catalina 10.15.7, PT HDX 2023.9.0, SSL 4040G+, tons of outboard Mac Book M1 Pro, 16GB RAM, OSX 23.6, PT Studio 2023.9.0 |
#34
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Re: GTX 680 or HD7950 vid card and HDX-3 - how do i do power for the cards?
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So what is the correct way to hook up the Sapphire HD7950 and an HDX card? Many thanks, gH
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Mac Pro 5,1 3.46Ghz 12 Core, (5) 1 TB Evo 840, OSX 10.9.5, PT HD 12.5.2, HDX1, (4) HD I/O 16x16, (1) Lynx HILO |
#35
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Re: GTX 680 or HD7950 vid card and HDX-3 - how do i do power for the cards?
The correct way is to use one of your power connections on the motherboard and go directly into one of the power in ports on the HD7950; nothing else connected to that power connection on the MB, and NO splitter cable. Use the second power connection on the motherboard to connect a splitter cable. Run one end of the splitter cable to the second power input port on the HD7950, and the other end of the splitter cable to the HDX card. Since wiring the card in this way, I have had no issues and the machine starts up as it is supposed to every time. I am feeding a large 4K monitor and an Apple Cinema Display off the HD7950. You may have to find the right combination of cables, but I believe links to some of the ones I used are included in earlier posts. One of the cables that came with the HDX card worked for me to get power from the splitter cable to the HDX card. I just made sure that both ends of the splitter cable matched up to the motherboard on one end and the HD7950 on the other end. The original cable that was in your MacPro to connect the motherboard to the factory video card will work for the other power connection to the HD7950. Hope this helps!
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Originally Posted by The Egg: Be a Pro and stop being a Tool! Mac Pro Rack (7,1) 16-core 3.2gHz Intel Xeon W OSX Catalina (10.15.4) 8TB Mac OEM SSD System Drive (3) 1Tb 7200rpm audio hard drives 192Gb RAM Radeon Pro Vega II Video Card 2 Avid HDX Cards 2 Avid 8X8X8 HD I/Os; 2 Avid 16X16 HD I/Os PT Ultimate 2020.3 |
#36
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Re: GTX 680 or HD7950 vid card and HDX-3 - how do i do power for the cards?
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#37
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Re: GTX 680 or HD7950 vid card and HDX-3 - how do i do power for the cards?
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My video card is the Gigabyte R9 280X and although I am only HDX-1, I am still concerned that the power ports on the motherboard maybe on the edge with the extra current draw and eventually something will get the video card working hard enough that a trace will be damaged on the Mac Pro (2010) motherboard. Although there have been posts stating spec numbers, which is much appreciated. . . so far, with considerable googling, I cannot find direct specifications from the manufacturers for the current (milliamps or watts): a) Gigabyte R9280x Video Card current draw on the two auxiliary connectors (Gigabyte Specs); b) HDX Card Current draw on the Auxiliary connector; (Avid Specs) c) Mac Pro mother board auxiliary power connector capacity (Apple Specs). Strange that this info is not readily available from the video card manufacturer nor Avid nor Apple. Maybe my Google is not interested in this geeky stuff or I am blind. The video card specs, just say 600W power supply, which seems really high. Could it be the 600W is for a complete PC system, not just the video card, without regard for the CPU power required? Not sure on any of this. . . so not helpful. Further thoughts or suggestions? Last edited by Howardk; 02-06-2019 at 09:50 AM. |
#38
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Re: GTX 680 or HD7950 vid card and HDX-3 - how do i do power for the cards?
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Luke |
#39
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Re: GTX 680 or HD7950 vid card and HDX-3 - how do i do power for the cards?
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Luke |
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