780TI Temps increased after going for a 1440p monitor.

JohnMartin7 · Apr 24, 2015

Hello!

So I just purchased a new monitor, the Acer Predator XB270HU 1440p G-sync monitor to replace my old Samsung 1080p. With the old Samsung, my 780TI's temperatures were at 33 degrees idle and 74 degrees maximum on load.

Now my idle temps are anywhere between 48-58 degrees but I havn't tried it while playing games. I'm assuming it's going to go into 80's and 90's. Is this normal? I went from 1080p to 1440p, would that cause that much of an increase?? I'm also very suspicious of 144hz of my current monitor. Could that be the culprit? Old monitor was 60hz. Sorry if it's a dumb question, don't know a lot about monitors :/

17seconds · Apr 24, 2015

I'm going to suspect that you had a little bottlenecking with your 1080p monitor, at least while gaming. What are your system specs? I also suspect that the higher refresh rate is impacting your GPU somehow, causing it to run at a higher clock rate at idle. Not sure.

So you should use Afterburner to monitor your clock speeds and report how high they are at idle. Your card will self-monitor its temperatures with its Turbo Boost 2.0 algorithms and will not allow your GPU to go over 84c, no matter what. That is a completely normal operating temperature, particularly for a reference model card (which is what I have).

JackNaylorPE · Apr 24, 2015

You are driving 78% more pixels 2.4 times as fast.

JohnMartin7 · Apr 24, 2015

17seconds :

Hey there, thanks for answering!

You asked for my specs, here they are. Let me know if you need more!

Motherboard: Asus Maximus VII Formula Z97
CPU: Intel i7 4790K
GPU: Evga 780TI Superclocked
PSU: Evga Supernova G2 850W

I have been using Afterburner for a long time, so had it on my PC. Core clock is at 810 idle and Memory clock is at 3499 idle. Not so sure if that's normal, but I have a feeling those numbers look crazy. I just played GTA 5 to test load temps and they seemed fine. They weren't impacted much, perhaps 1 or 2 degrees. So max load temp is 75 degrees. It's the idle temps that are ridiculous. I have a Titan X on the way and I'm worried about even higher idle temps. My case is not so ideal for airflow, but it managed my 1080p monitor well. The case is the NZXT H440 btw. Let me know if you need any other info!

JackNaylorPE · Apr 25, 2015

Historically the SC series hasn't had a lot of effort put into VRM and VRAM cooling, so that's where my concern would be rather than the GPU temps. EVGA uses an aggressive fan curve which keeps them cool enough .... but if you really push it, the fan can only go o fast.

JohnMartin7 · Apr 25, 2015

JackNaylorPE :

Not sure I follow. So you're saying SC version cards don't perform as well as non-SC cards in terms of cooling? Sorry if I'm misunderstanding. I've always been told that cooling and every other feature of SC cards are exactly the same as non-SC cards. Only difference being factory overclocked. Please correct me if I'm wrong!

JackNaylorPE · Apr 25, 2015

I must not have been clear..... historically, the SC series has utilized a stock PCB and added a very nice GPU cooler. Note the bolded text emphasis. They do do an excellent in cooling the GPU.... less so for the memory and VRMs. They also normally use the reference VRM whereas competitors use custom PCB and bigger VRM with more phases.

Let's look at the waterblock round up for the 780 / 780Ti / Titan

As you can see here, the EVGA Hydrocopper comes in 2nd place on GPU temps ...about 2 C lower than industry leader EK...GPU temps under water typically run 39 to 45 ish so 1) EVGA did excellent in coming in 2nd, but 2) last place is only 2 C behind

Now lets look at VRAM temps .... EK goes to 1st place, but EVGA is in last, but this time the spread is 10C

Now finally, lets look at VRMs ....EK's in first again with a 33C...but EVGA is in last place again with a 30C increase..... so while the SCs do generally cool the GPU very well, they are not so good at cooling VRAM and especially VRMs.

Now I'm going to make it even more confusing

At stock, the EVGA VRAM and VRM temps are generally cooler than competitors, that is because the EVGA fan is spinning quite a bit faster. Now overclock both the cards and the EVGA has less rpm headroom so it can only increase its cooling potential so far.... the other cards, were running slower to begin with so they have more untapped cooling capacity.

Here's a good teardown article on the 970s .... note the differences in VRMs and memory componentry and cooling

http://www.bit-tech.net/hardware/graphics/2014/09/19/nvidia-geforce-gtx-970-review/3

Examining the PCB reveals a 4+2 phase power design – four phases near the rear I/O for the GPU, and two in the bottom right corner for the memory. This is a slight upgrade from the 4+1 stock specification but unlike MSI and ASUS, EVGA does not use any specially crafted components.

The GPU MOSFETs are directly cooled by the main heatsink, which has a thermal strip on to draw heat up into the fin stack. On the other side of the GPU is a metal contact plate that partirally cools two of the four memory chips on this side, leaving the other two exposed. It also cools the MOSFETs of the power phases serving the memory, but no thermal pads are used, so heat transfer is likely to be limited.

The power delivery is the best of any here; it's a 6+2 design. Further, MSI uses its own improved components for both the GPU and the memory power phases. The components are referred to as Military Class 4 since they meet MIL-STD-810G regulations. Specifically, we find Hi-c CAP and Solid CAP type capacitors and Super Ferrite Chokes, which are designed to provide higher stability, lifespan and efficiency.

A miniature heatsink takes care of cooling the main GPU MOSFETs near the rear I/O, while a metal contact plate equipped with thermal pads is used to cool three of the four front PCB memory chips as well as the remaining power circuitry including the memory MOSFETs and the VR controllers.

So appreciating your responsible attention to GPU temps, just wanted to note that your concern should not lie solely with the GPU, think about VRAM and VRM temps too.

JohnMartin7 · Apr 25, 2015

JackNaylorPE :

Hey there, thanks for trying to explain it to me and also for providing some charts to go along with it. I don't know what else to say, it really get confusing for me sometimes but I did some digging and found this. Vram heatsink results on the Titan X.

http://forums.evga.com/Titan-X-Vram-Heatsinks-Overclock-m2317074.aspx

What do you think? I might be better off getting something like that I think.

JackNaylorPE · Apr 25, 2015

Seems to have worked for him ... a fan mounted on the side of the HD cage blowing on those heat sinks would help lots

JohnMartin7 · Apr 25, 2015

JackNaylorPE :

I thought about something like that too, but couldn't mount a fan to the side of the HD cage in my case. I did, however, find one particular case that looks like it does. Take a look at this case, it's the Phantom 820. There is a pivot fan on the side of the HD cage, do you think that covers enough of the GPU and would be effective? Perhaps put a Noctua in there? Also, how many degrees would you guess the temps would go down?

http://cdn.eteknix.com/wp-content/uploads/2012/10/DSC_6343.jpg

Please feel free to recommend a different case if you think it would be a better option!

17seconds · Apr 25, 2015

JohnMartin7 :

Something is preventing your card from dropping down to idle/2D clocks, 324 MHz/308 MHz memory (as read on Afterburner). Do you have two monitors attached? Do you have some processes running, a browser window maybe, that is causing your GPU to kick into high clock mode when not gaming?

At least it looks like the problem is confined to your idle mode and not gaming.

JohnMartin7 · Apr 25, 2015

17seconds :

I have only ONE 1440p 144hz monitor and there are no background processes running apart from Afterburner and the Cam software. I have no idea why it's high :/

17seconds · Apr 25, 2015

What is can software? Try disabling it and see if that helps.

JohnMartin7 · Apr 25, 2015

17seconds :

It's a software that is needed for my NZXT Kraken X61 CPU Cooler. It's basically a software to control your fan speeds. Disabling it did not help unfortunately.

JackNaylorPE · Apr 25, 2015

JohnMartin7 :

http://www.newegg.com/Product/Product.aspx?Item=N82E16811854007

Enthoo Luxe, significantly cheaper, great features with included fan controller, best fans on market, LED and LED control system. Nothing comes close in its price range.

There is an option that started w/ EVGA that gets you slightly better benchmarks .... it was ignored by the other manufacturers until the tweens were raving about it as a great feature. Basically it provides constant voltage to the card whetehr needed or not so that it doesn't have to "ramp up" when load arrives.

Open the MSI Settings window and uncheck "force constant voltage"

JohnMartin7 · Apr 25, 2015

JackNaylorPE :

Hey Jack, I opened up MSI Afterburner and "force constant voltage" was unchecked by default.

Thanks for recommending the Enthoo Luxe, I already knew about it and the funny thing is I was almost going to buy it but went with the H440 instead. I love the Enthoo Luxe but I'm worried that it won't cool the GPU as effectively as the Phantom 820 due to the absence of a pivot fan mounted on the side of the HDD cage. What do you think? Think it'll perform better than the Phantom? If so I'll order it right away.

JackNaylorPE · Apr 25, 2015

There is a fan mount on the side of the HD cage ... all the Phantekls cases have them. Lemme go get a pic..... be right back

The raised holes (nipples) are threaded. Here's an Enthoo pro owner talking about mounting a cage there

http://www.tomshardware.com/answers/id-2549263/case-fan-led-setup-enthoo-pro.html

This should help you decide between the H440 and the Luxe

https://www.youtube.com/watch?v=GdWXLAmmSjc

here's another pic while the Swiftech H240-X was being painted white prior to installation.

The bottom HD cage can be removed but if ya put it back in, you could have a 2nd fan below it blowing on the cards

JohnMartin7 · Apr 25, 2015

JackNaylorPE :

That is so good to know! I actually didn't know you could mount a fan there. Question though, I see 2 seperate cages, the top and the bottom. Is it possible to mount a fan on both? With the first pic, I'm not sure what I'm looking at but looks like that is a graphics card? If so, the fan is blowing right on it! If that's the case, I'm ordering the Luxe right this second!

JackNaylorPE · Apr 25, 2015

Look at the last line of last post.

The middle of the CPU lines up with bottom of 5.25 bays / top of HD cages
The middle of the space between GFX cards lines up with bottom of top cage / top of bottom cages

We took the bottom cage out so you can't see it in pics.

Check out the video ... @ 1:00 mark

https://www.youtube.com/watch?v=dkRJsjuvQVY

The 1st pic shows the top HD cage and the screw mounts for the fans ...and one of the WC tubes for the h240-X ... as well as the edge of the GFX card where power cables attach.

The 2nd pic shows the two GFX cards .... with fans mounted on top and bottom cages you get flow above and below both cards.

JohnMartin7 · Apr 25, 2015

JackNaylorPE :

Thanks a lot for the video! The fan mounts on that thing is crazy!!! I just went ahead and ordered the white Enthoo Luxe. Hopefully we see some good temperature results!

JackNaylorPE · Apr 25, 2015

If ya need help ... lemme know..... some more pics

Keep in mind that the Phanteks fans have the best performance / noise ratio of the market. See chart here:

http://www.silentpcreview.com/article1345-page7.html

Beat the Noctua AF's by a shocking 3C while spinning 300 rpm slower

http://www.overclockersclub.com/reviews/phenteks_f140/3.htm

Cooling Suggestions:

CPU - Swiftech H240-X
Top - (1) 140mm next to H240-X
Rear- (1) 140mm
Front - (1) 200mm
Bottom - (1) 140mm
HD Cages (2) 120mm

Put up to (5) 120/140mm fans in bold on the Phannteks fan hub and connect it to CHA_1 Fan Header on MoBo. You will NOT need to connect the SATA Power cable to the Fan Hub.

Put the 200mm on CHA_2 header

Control everything with MoBo utility software

Put the H240-X as per instructions.

JohnMartin7 · Apr 25, 2015

JackNaylorPE :

Jack do you actually have the Enthoo Luxe or are you getting the pics online? Nothing wrong with that of course, but I'm just really curious. Was going to ask if you were happy with your temperatures.

JackNaylorPE · Apr 25, 2015

I have build boxes with Enthoo Primo, Enthoo Luxe and Enthoo Pro ... not yet with theMini XL or Evolve. Both the Primo and Luxe are upstairs

Here's the Primo

JohnMartin7 · Apr 25, 2015

JackNaylorPE :

That Primo looks pretty cool!

JackNaylorPE · Apr 25, 2015

Under Furmark, GPU temps are at 39C w/ 26% OC

780TI Temps increased after going for a 1440p monitor.

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