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NVIDIA GTX 1080 Ti Owner's Thread - Page 261

post #2601 of 2610
Quote:
Originally Posted by Jbravo33 View Post

Same here i cant get passed 2050 with fans on 100 percent. also tried playing game (squad and mass effect) last night for first time with sli got a few crashes when cards were overclocked at highest preset i had for benching. cards heated up and fans were super loud. i think these cards def need to be swimming. Do you have a seperate loop for gpu? how much of an effect would these two cards have on my loop with cpu do u think?

Yeah. I have a completely separate loop for my GPU. It's on a ridiculous amount of rad space. 480 + 280. My plan was back in the day to get 2 780 lightning cards and run then both at 1.3 volts. I wanted to be able to push it with fans at slow speeds.

With your loop, it would depend on rad space, pump, and fans. It wouldn't have much affect on mine because it's a dedicated loop. How much rad space do you have? My last shared loop was an old i7 860 and crossfired 7850s. Maybe someone else with SLI on their CPU loop could chime in?
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post #2602 of 2610
Quote:
Originally Posted by Bishop07764 View Post

Yeah. I have a completely separate loop for my GPU. It's on a ridiculous amount of rad space. 480 + 280. My plan was back in the day to get 2 780 lightning cards and run then both at 1.3 volts. I wanted to be able to push it with fans at slow speeds.

With your loop, it would depend on rad space, pump, and fans. It wouldn't have much affect on mine because it's a dedicated loop. How much rad space do you have? My last shared loop was an old i7 860 and crossfired 7850s. Maybe someone else with SLI on their CPU loop could chime in?

Currently have 300c res pumping into a front 280x45mm rad in pul> bottom 240 slim in pull >cpu > out to rear 360x60mm push/pull back into res. would like to throw in the gpus right after the 240 and in parallel.
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post #2603 of 2610
Quote:
Originally Posted by Jbravo33 View Post

Currently have 300c res pumping into a front 280x45mm rad in pul> bottom 240 slim in pull >cpu > out to rear 360x60mm push/pull back into res. would like to throw in the gpus right after the 240 and in parallel.

That sounds like enough rad space to me. Provided that your pump is up to it. It sounds like you would be good to go. I'm loving the silence myself. The founders cooler was one of the worst that I've ever used in terms of noise when trying to push it. But maybe the brief time that I used my old 780 lightning air cooler is biasing my memory a bit on the noise. smile.gif

Now if someone could do a modified bios allowing 287% power limit like my old lightning, that would be awesome. 😀
Edited by Bishop07764 - Today at 12:30 pm
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post #2604 of 2610
Quote:
Originally Posted by Bishop07764 View Post

Lol. And that wasn't counting my psu fan. My fan controller gets a workout for sure. It allows me to run my fans at about 600 rpms or so. Quiet and they still keep my CPU and graphics card cool. I've never even tried benching with the fans any higher. Most of them are Yate Loons. Cheap but awesome.

Please tell me where exactly are your fans, In my PC, most of the fans are turned off, mainly the psu fan, its switched to the hybrid mode and the 3 gpu fans...
post #2605 of 2610
Quote:
Originally Posted by Mato87 View Post

Please tell me where exactly are your fans, In my PC, most of the fans are turned off, mainly the psu fan, its switched to the hybrid mode and the 3 gpu fans...

20 of them are on my 4 water radiators. I have 2 alphacool ut 60 480 mm rads that account for 16 of them. They are in push/pull configuration. Then 2 in very front and one for exhaust.
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post #2606 of 2610
Quote:
Originally Posted by Bishop07764 View Post

20 of them are on my 4 water radiators. I have 2 alphacool ut 60 480 mm rads that account for 16 of them. They are in push/pull configuration. Then 2 in very front and one for exhaust.

Ahhh, I understand now, you have the radiators for the water cooling, but why 4 man? where do you have them? Outside the case? or do you have a gigantic case?
post #2607 of 2610
Quote:
Originally Posted by mcg75 View Post

I'm using a 980 Ti EVGA hybrid cooler on my 1080 Ti.

Temps are usually about 40C gaming.

My normal gaming clocks are 2025 MHZ core and +250 on memory. The core on mine doesn't want to go above 2050 without crashing.

Haven't pushed memory that far yet but it seems like a lot of you are getting good memory OC.

How are you temps so low, are you playing less demanding games or have cold ambient temperature? Watch Dogs 2 and Mass Effect Andromeda go up to 52-53ish C for me, but I am also overclocking the memory to +500 if that causes more heat. I also have a very poor core clock overclocker. I can only go to 2025 Mhz core/+120, any higher than that and it crashes in games even after adding the hybrid cooler ;p. In fact, I dunno if I can maintain the +120, I have to play ME: Andromeda some more to see, lol. I know at +100 on air, the game never crashed.
post #2608 of 2610
Quote:
Originally Posted by Bishop07764 View Post

Yeah. I have a completely separate loop for my GPU. It's on a ridiculous amount of rad space. 480 + 280. My plan was back in the day to get 2 780 lightning cards and run then both at 1.3 volts. I wanted to be able to push it with fans at slow speeds.

Haha, yeah my loop was built to contain crossfire 290x's - about 600W of heat to dump from the GPUs alone. 50mm thick 420 + 480 with 11 fans between them now pretty overkill for a CPU and the 1080Ti, but it's quiet and well behaved. Damn thing weighs like 30KG though.
Edited by mshagg - Today at 2:05 pm
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post #2609 of 2610
I was one person who messed with undervolting. Iirc...there was another poster who did the same? Learned how to do this working on an Alienware 17R4 with a GTX 1080 that was Hard limited until,very recently at 165W. So you had to find the best OC at voltages around 0.913-0.943v to avoid power limit. You MUST learn to use the voltage/freq curve to achieve this. I'll post up something later once I'm home on the rig I did this on but here's a couple videos that I found that show/explain how. (Russian and German speakers rejoice, English speakers...you can see what's happening)

https://m.youtube.com/watch?v=o_CRCZxtlRs

https://m.youtube.com/watch?v=Z2w8DGhFQ5Y

In a nut shell....you apply a slider based OC with the chart open (CTRL+F). You'll see the slider applies the + across all voltage/freq point. Try going for a 2000-2050 OC at 1.000V point and then drag all points past that down. Or if driver crashes...choose a slightly higher voltage point to try like 1.013v. This forces the Boost 3.0 to choose the highest Freq point at the lowest voltage point temperature based which we can't see in a chart unfortunately. There does appear to be a Temp/Voltage coorelation that I've seen but have not quantified.

This will take way more time to adjust vs just a little slider adjustment and apply. But worth it to find the best compromise between Voltage-Freq-power target use.
Edited by richiec77 - Today at 2:05 pm
post #2610 of 2610
Quote:
Originally Posted by jrcbandit View Post

How are you temps so low, are you playing less demanding games or have cold ambient temperature? Watch Dogs 2 and Mass Effect Andromeda go up to 52-53ish C for me, but I am also overclocking the memory to +500 if that causes more heat. I also have a very poor core clock overclocker. I can only go to 2025 Mhz core/+120, any higher than that and it crashes in games even after adding the hybrid cooler ;p. In fact, I dunno if I can maintain the +120, I have to play ME: Andromeda some more to see, lol. I know at +100 on air, the game never crashed.

I've actually never really looked into seeing if my temperatures were that good. The fact that the hybrid is so much quieter than the card's fans sold me on it.

I just let Heaven run for 20 minutes. GPU usage 99%. Leveled off at 45C. Ambient room temp is 22C.
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