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Getting too much VRel on my GTX980

Oct 7, 2007
193 (0.04/day)
North of Iran
System Name Main system
Processor Intel Core-i7 4790K
Motherboard Asus Z97-Pro Gamer
Cooling Cooler Master Hyper 212 EVO
Memory 16 Gig Geil DDR3(2x8GB 1600-CL11)
Video Card(s) Gigabyte GTX1080 G1 Gaming
Storage Western Digital Blue Cavier 500 and 1 Terabyte + 1 Terabyte Green Cavier + Samsung SSD 850 EVO 250G
Display(s) ASUS ML238 LED Monitor
Case Green Viper X3
Audio Device(s) Onboard-Realtek
Power Supply Green 700watt (Its a rebranded psu from highpower/kolink I guess)
Software Windows 10 /Ubuntu 16.04
Hello everyone,
Yesterday, I accidentally noticed my PerfCab section of gpu-z is showing Thrm.
So what I basically did was I head to my Gigabyte OC_Guro panel, and set the Fan control to manual, the temperature decreased from 80c to 72 73c in couple of minutes, but! then immediately I noticed the perfCab changed to VRel, limited by voltage reliability!
When this happened, I remembered at least for the past 2-3 weeks, I have been seeing the VRel, but didnt pay attention to it.(I thought its normal, either it should be util when not on load, and vrel otherwise!)
but when I read the perfcab reason, since yesterday this has made me really worried.!
I have a 700W Green power supply unit, and this should be pretty much Ok for a GTX980 at full load.
I have been using my gpu 24/7 for the past 6 month non-stop, for running my deep-learning experiments,
and I also need to mention that for the past 2~3 month, I noticed a significant change in the electricity power, in our local, seems due to summer and high consumption of electricity in our local, the local distributer, can not keep up, I see the lights getting dimmer! and fans spinning alot slower.
Is this the prime cause of this problem? Is it dangerous to my PC? what should I do about it?
Now, What is happening here, Is my gpu stressed or faulty? has my psu gotten faulty?
should I ignore this , considering what I have just explained, (electricity power, 24/7 experiments, etc) ?

Thanks in advance
May 9, 2012
6,653 (2.40/day)
Ovronnaz, Wallis, Switzerland
System Name Monster Panzer Max [MPM]/Nostalg33k/Fiio X5 3rd gen/Odroid C2/Honor View 20
Processor i5-6600K 3.9/E8500/RK3188/S905 4X1.5 A53/Kirin 980 2xA76 (2.6 GHz)+2xA76 (1.92)+4xA53 (1.8GHz)
Motherboard Gigabyte Z170X Gaming 7/XFX 650i Ultra/Fiio/Hardkernel Odroid C2/uh?
Cooling Corsair H115i /Alphacool Eisberg /uh?/Aluminum heatsink/Heatpipe
Memory 4x4gb HyperX Predator 2800 CL14/2gb DDR2 800/1gb/2gb LPDDR3/6gb LPDDR4X dual channel
Video Card(s) MSI GTX 1070 ARMOR 8gb OC/Asus 8800 Ultra/Mali 400MP4/Mali 450MP5/Mali G76MP10
Storage 120gb OCZ VertexIII,1tb/8gb SSHD,2xToshiba 1tb/none/32gb+64gb/32gb/128gb UFS 2.1
Display(s) Medion X58222 32"5ms OC 75hz 2880x1620/Philips 273E3LHSB 27"1ms 1920x1080/~4" 480x800/6.4 inch FHD+
Case Cougar Panzer Max/none/Aluminum and tempered glass/None/alu frame +back/front glass
Audio Device(s) Fiio Q1 Mark II+Logitec Z333/SB Audigy2 Platinum/dual AK4490EN /Odroid HiFi Shield+/Trn V60/Fiio Fa1
Power Supply Seasonic M12II Evo 750 /Enermax Coolergiant 480/12v 1.5A/Aukey QC3.0 9-12V 1.96A
Mouse Asus ROG Spatha/touch/Minix Neo A2 Lite/touch
Keyboard GMMK TKL+Gateron Red+white keys/touch/Minix Neo A2 Lite/touch
Software Win10 64/none/Android 5.1.1 custom/Libreelec, Lakka 2.1 or Volumio 2.344/Android 9.1.0
Benchmark Scores bench...mark? i do leave mark on bench sometime, to remember which one is the most comfortable. :o
you should not be worried, VRel is not an issue, it's just a logical limitation that's bound to show up (i get that at stock as in OC on my 1070 ) just like all perfcap they are indication of limitations, not problems.

already discussed a lot on it ... and this is my conclusion (and for some, for not saying a lot, people it's the same conclusion)

see a light load and VRel kicks in (using only GPU-Z load test to show active PCIeX link, ok ... 99% GPU load is not so light ... tho the test is ... )
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