The availability of good units is somewhat limited from what I can see, but this one will not fail you: http://nikem-bg.net/computer-components/Seasonic-FOCUS-Plus-SSR-550FX-GOLD/
Opss sorry for answer down I'm new and I can't where to reply anyway my psu is some Chinese cpu i7-870 ram corsair 4x2 1.5V I don't remember the motherboard
If it has only one 6-pin cable, than I can assure you it will not be able to power gtx 980. And even if it does, it will do so for not long time and then blow up.
No it has only one 6, but I've bought cable 6 to 2 6+2 pins and right now I can't do a picture because I'm on a ski trip
That is a disaster waiting to happen - melted connectors, plus a PSU with no protections will result in a mess. If you can afford a GTX 980 you can surely spend something like $60-70 for a decent PSU.
The availability of good units is somewhat limited from what I can see, but this one will not fail you: http://nikem-bg.net/computer-components/Seasonic-FOCUS-Plus-SSR-550FX-GOLD/
Wattage is not all that matters - quality is more important. Plus that be quiet unit is a bit overrated - it's total wattage is 600 W, but 12V line load, that matters much more, is only around 550 W. Although it's not that awful as you can find - there are units marketed as 600 W that can actually do no more then 300 W.