Velox, 980ti temps/fan curve etc (questions)

So, I've had some time to add and play some games, and I'm looking for some better advice than "well my X only gets to 50c. check your airflow"... It's the freaking Velox... Thing is nothing but airflow...

But I am curious as to why the top 2 fans are intake, facing the top of the gpu, which has 3 fans blowing up to those intake fans... That seems a little counter productive, but that's my know nothing assumption, and I'm curious as to how that works...

Also, what kind of temps should I be looking for on my gpu? With the stock fan curve it sits at ~83c, but I keep hearing how bad that is, etc etc... So I set one to where fans are at 90% at 75c... I guess I just had the mindset that not much should be making this card work at all for like a year lol... What would be a more ideal fan curve setting? (I like the fans being off at idle, which is around 40c-47c depending on temp in the room)

Thanks!

What side fans are you referring to? o.o The front and back? I've got the one cpu fan on the other side of the divider, 3 front fans as intake, 2 top fans as intake, 1 back fan as exhaust (I do like how the front pushes cool air to the DH-15, and the DH-15 pushes it right to the exhaust in a straight line :p)

I tried that one on one setting you mentioned and it happily climbs to 80 still... The only one that kept it at like 73 was aggressive as asterix... like 99% fan speed at 75 degrees... Then I get responses like "you shouldn't need to run them more than 50%!"

ffs... So much confusion...

In regards to the top fans however, I'll try putting them to exhaust on Tuesday... What could possibly go wrong?


P.S. I played with my curve a little more... (This is in CSGO, 3840x2860 DSR res, maxed out, and no fps limit)
I peaked at 79c, fan speed peaked at 95%... I didn't tell the people telling me it shouldn't be getting that warm my res... If that has anything to do with it...


Edited by Turbatus - 28 Feb 2016 at 4:55am

The front fans, 1 1/2 facing the gpu, the other 1 1/2 face the dh-15 so it does have that...

So high 70s, and fans at 95% won't "hurt" anything or shorten the lifespan by any notable amount of time? I mean I want to use my gpu to its fullest, but not abuse it, if that makes sense? (I wan't it to at least make it to pascal, ideally a while after when the prices start slowly coming down, which could be a VERY long time lol)

But I do think (despite having nowhere near the expertise DS has) that making the top exhaust would be a good move, as right now, with the intake in front, and top, and the gpu fans facing above the exhaust, it just pushes that hot air to that corner of the case over the gpu...

Maxing the fans out might lessen longevity of the fan, but a few years should be good to go.  Tough to say with the fans.  Some fans run at max all the time and never need replacing.    I have case and an A70 air cooler's  fans that have been running at near max for years and never had to replace one. 

I would set the fans on the card to their lowest setting while staying 79 C or less.   I wouldn't think 95% rpm is needed, but every setup is different. 

Edit.. so there's no side fan next to the cards?   Any room to mount even a single 120mm fan?  Side fans, from my experience, make a huge difference for the graphics cards. 

Love your pic.        Kidding, I do get the idea.    I'd put the top fans pointing out. 


Edited by bprat22 - 28 Feb 2016 at 7:21am

The Velox specs do mention the 2x right side door fans.  Could be they mean the option is there but not listed an an option.     Oh, well.  

I don't have any spots for fans on the side. :s

So those are actually intakes on the strix, or is that a thought?

Then I'm an idiot lmao... I assumed they were all exhaust to get heat out, not bring in cool air. That being the case, I can understand why the top two on the case are intake...

But ya, if I lower the res to 1080 its much cooler... I just didn't know it was in 4k dsr lol (trusted nvidia to optimize my settings)

On another note, will the gpu work harder on true 4k than 4k dsr, less, or about the same?

reference nvidia cards use a blower that pushes hot air out the rear of the card, but these custom cards use multi intake fans that push cool air through the heat sink in a downward direction and have a directed flow path kind of in a down and out the sides direction that wicks the heat away from the gpu and into the case where case fans are then expected to push the hot air out of the case.  water-cooled gpus move the heat through the liquid to the rads and the rad fans push or push/pull it out of the rig.

that's the thing with air cooling.  you have to make sure all fans work in synergy.  you'd like to avoid a situation where hot gpu air is blown all over your cpu and vice versa.  the main thing is to get all hot air out of the case asap.  you want a balanced fan config.  if you had all of your case fans config'd as intakes two things would happen: 1) the fans would work against one another; 2) too much positive pressure would suck in air through every crevice and bring dust along with it.  you'd have to pretty much line your entire case with dust-catching mesh.

if you put all exhaust fans in your case, you'd: 1) again have the fans working against one another; 2) create a negative case pressure situation.  fans don't create air they move it.  negative case pressure relative to the surrounding environment causes air to be pulled in, again, thru all of the cracks and you get the same dust control problem.  you want to lean towards positive case pressure, but overall you should be looking for a balanced config between intake and exhaust.  you can control dust better this way by putting dust catching mesh on intake fans typically front of case and bottom of case.  exhaust is typically rear of case and top of case.