question about Sapphire Nitro R9 390 with back plate

[henrik12345]

I wanted to ask if my psu would be adequate for powering the gpu mentioned above? Also the card requires 8-8 pin pci-e, but for some reason these cables have vanished from my psu box and I'm left with 8-6 pin pci-e cables, so is it safe to use 6-8 pin adapters or should I buy new 8-8 cables?

PSU - Thermaltake tough power xt 775W
CPU - i7 2600k
Motherboard - gigabyte h67ma-usb3-b3
RAM DDR3 - 2x 2GB corsair + 8GB kingston
1 TB western digital wdc

 

[DrSandwich]

I would probably just by the 8-8 cables, but im not too sure about that. That PSU should be good enough, since it is 80+ Bronze. If you plan on overclocking( it should be fine but someone correct me if I am wrong)or upgrading in the near future, possibly get a new psu. Otherwise, you should be good!

 

[henrik12345]

Regarding to specs, the psu should be good, but on boot I see a pattern of lines with different colors instead of the motherboard "info-picture" (sorry, dont know the correct term). When gaming, I can run Witcher 3 and GTA V(and other games with no issues as well) on max settings, but a weird thing happened with gta - suddenly the game crashed and after restarting it, I had to lower the settings because of lag and when putting them back up, a BSOD appeared. The reccommended psu for the card should have 750W, mine has 775W. The card itself has its engine factory-clocked to 1040 MHz. I also sent the card back to diagnostics and everything should be fine. How dangerous is it to continue using the card? Could someone reccommend me any PSUs if I should replace mine?

 

[DrSandwich]

Regarding to specs, the psu should be good, but on boot I see a pattern of lines with different colors instead of the motherboard "info-picture" (sorry, dont know the correct term). When gaming, I can run Witcher 3 and GTA V(and other games with no issues as well) on max settings, but a weird thing happened with gta - suddenly the game crashed and after restarting it, I had to lower the settings because of lag and when putting them back up, a BSOD appeared. The reccommended psu for the card should have 750W, mine has 775W. The card itself has its engine factory-clocked to 1040 MHz. I also sent the card back to diagnostics and everything should be fine. How dangerous is it to continue using the card? Could someone reccommend me any PSUs if I should replace mine?

Hmm, that's weird. The recommended PSU for certain parts are usually very conservative, and your psu isn't too bad. Its 80+ Bronze, which means it only gets 80% performance, but that should be fine. Anything name brand (Corsair, EVGA,etc...) should work. Try getting a 80+ Gold one. That has 90% performance.
Try this one. http://www.newegg.com/Product/Product.aspx?Item=N82E16817139056&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-BD%20Industries%20LLC-_-na-_-na-_-na&cm_sp=&AID=10440897&PID=7718204&SID=pchound

Your PSU should be good though, so idk what the problem is. If anyone else has any ideas, please help. The one I linked above is 80+ Gold, modular, but is around $130. It is probably over kill, but if you plan on upgrading soon, I would get this. Did you also check to see if your card's drivers are up to date? That could be the problem.

 

[henrik12345]

It sure is really weird, as everything should be up to date. I think the problem lies in the (fairly cheap) adapters which make my 8-6 pin cables into 8-6-8 pin cables, so I ordered some new 8-8 pin ones from moddiy and will give them a shot once they've arrived. If the problem persist I guess I'll go with upgrading the psu as well. Thanks for the help and opinions!