jhbodle Posted May 31, 2014 Share Posted May 31, 2014 I am having a problem with my new Radeon R290X graphics card - basically every game I run for more than 5mins gives a black screen and the GPU fan switches to full speed until I switch off the PC. Looking on Google there are several other people having this problem and they all seem to have one thing in common - they are all running RM750 and RM850 power supplies. Is there any reason for this or is it just a coincidence? I have sent the R290X for replacement but they found no faults. Link to comment Share on other sites More sharing options...
Administrators Technobeard Posted May 31, 2014 Administrators Share Posted May 31, 2014 Do you have links to these other people? What's the lot code on your PSU? Link to comment Share on other sites More sharing options...
jhbodle Posted May 31, 2014 Author Share Posted May 31, 2014 Sure: http://www.overclock.net/t/1482935/powercolor-r290-pcs-black-screen-driver-crash http://forums.overclockers.co.uk/showthread.php?t=18578942 (Post 18) http://forums.amd.com/game/messageview.cfm?catid=440&threadid=170577&STARTPAGE=4&FTVAR_FORUMVIEWTMP=Linear (sorry, this one mentions it on the 4th page) The first 4 digits of the serial number are 1404. It may be a coincidence but I am struggling to work out why the R290X fails in this way when it has been tested OK. Link to comment Share on other sites More sharing options...
Corsair Employees jonnyguru Posted June 1, 2014 Corsair Employees Share Posted June 1, 2014 That's very odd that the thing in common is the PSU. If the PSU was being overloaded, overheated, etc. it should shut off. It could be that the load on the PCIe is so much, so sudden that it causes a voltage drop too fast for the PSU to compensate for. How do you have your card powered? Are you using one PCIe cable or two? Link to comment Share on other sites More sharing options...
jhbodle Posted June 1, 2014 Author Share Posted June 1, 2014 That's very odd that the thing in common is the PSU. If the PSU was being overloaded, overheated, etc. it should shut off. It could be that the load on the PCIe is so much, so sudden that it causes a voltage drop too fast for the PSU to compensate for. How do you have your card powered? Are you using one PCIe cable or two? I'm using the both the eight and 6 pin PCIe cables from the PSU. I have bought a GTX 780 to see if that works, but i really want the R290X to work as it is faster. Link to comment Share on other sites More sharing options...
Corsair Employees jonnyguru Posted June 1, 2014 Corsair Employees Share Posted June 1, 2014 I'm using the both the eight and 6 pin PCIe cables from the PSU. I'm not sure that answers my question, so let's try that again. ALL of the PCIe connectors are 6+2-pin so they can be used as either 6-pin or 8-pin PCIe connectors. Most of the cables have TWO connectors on them. Are you using one cable with two connectors or are you using two separate cables? Link to comment Share on other sites More sharing options...
jhbodle Posted June 1, 2014 Author Share Posted June 1, 2014 I'm not sure that answers my question, so let's try that again. ALL of the PCIe connectors are 6+2-pin so they can be used as either 6-pin or 8-pin PCIe connectors. Most of the cables have TWO connectors on them. Are you using one cable with two connectors or are you using two separate cables? I'm using one cable with two connectors. However, it looks like it was just a coincidence in this case - if I set the target temperature on the GPU to below default then the problem doesn't occur. It appears that the default target temp is too high for some reason. Anyway, I have just tried a GTX 780 in my rig and that works without issue, so that's what's staying in. Link to comment Share on other sites More sharing options...
Corsair Employees jonnyguru Posted June 1, 2014 Corsair Employees Share Posted June 1, 2014 Ok... But I was going to say, if you're just running the one card, I would run two separate cables. One for each connector. An excess load on the connector back at the PSU's modular interface could cause resistance that could result in a drop in voltage. Link to comment Share on other sites More sharing options...
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