Help understanding PerfCap Reason in GPU-Z and overclocking 980TI

[Things change I've changed]

Hi guys, I am wanting to overclock my Palit 980TI today but first I thought I would run a heaven @ stock just to get an idea of temps etc, just wanted to check does everything look ok as under the 'PerfCap Reason' section it's coming up with 'Pwr & Vrel' is that normal?, just wanted to check before I start overclocking the card.

Also any tips overclocking my card, what programs to use etc

 

[Armageus]

A quick look on google and I found:

vRel = Reliability. Indicating perf is limited by reliability voltage.
VOp = Operating. Indicating perf is limited by max operating voltage.
Pwr = Power. Indicating perf is limited by total power limit.
Thrm = Thermal. Indicating perf is limited by temperature limit.
Util = Utilization. Indicating perf is limited by GPU utilization.

Don't believe it's a problem, just a case of the card attempted to increase clocks, but couldn't as it hit the Power limit.

Whether the Power Limit or vRel can be increased, I don't know - hopefully someone more knowledgeble than me with regards to NVIDIA Cards will be able to elaborate.

 

[Things change I've changed]

That's handy, I couldn't find those, at least I know what they mean now, so it looks like it might be normal then?