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Gigabyte AORUS GeForce GTX 1080 Ti Owner's Thread - Page 223

post #2221 of 2418
Quote:
Originally Posted by beekermartin View Post

Just a FYI for those considering switching to a water block...

I ordered the Aorus Extreme with the intent to water cool. I was using MSI 2x980ti's with EK blocks and back plates prior to "upgrading" to the single Aorus 1080ti Extreme. I tested the Aorus with the air cooler installed but only to make sure it was working well. I then installed the EK water block I had ordered the EK block when I ordered the Aorus Extreme. One of the reasons I was hesitant on going with the EK block for the Aorus was the fact the memory VRM was not cooled by the block. I contacted EK and they assured me cooling the memory VRM was not necessary. I also watched a YouTube video that broke down the PCB of the Aorus 1080ti and that basically said the memory VRM was complete overkill and did not require any type of active cooling. Basically he said no air movement at all still wouldn't hurt the memory VRM on the Aorus.

Well I have been trying to figure out a way to use the stock back plate with the EK water block. I knew it wasn't compatible but I was hoping I could easily modify the stock back plate without permanently modifying it. Well I have given up on that and now realize I would have to modify the back plate permanently in order for it to fit perfectly with the EK water block installed. I hate to do that because I usually end up selling the video card when I upgrade with the air cooler installed. I then sell the water block separately. That has worked well for me with my last few video card upgrades. Anyway, permanently modifying the back plate would make it harder to sell when I reinstall the air cooler.

Anyway, I was about to order the EK back plate that works with their water block but I have been hesitant. The fact that it cost ~$35 plus ~$10 shipping has made me hesitant. A back plate with no leds and that basically does nothing other than protects the back of the PCB for ~$45 isn't exactly a bargain. I then saw the posts here that other water blocks from different manufactures cool the memory VRM properly and work with the stock back plate. That had me intrigued about selling the EK block and going with an alternative.

Well tonight I was benchmarking the Aorus Extreme and decided to check the temps on the back of the PCB with no back plate installed using a laser thermometer. Here are my results. Keep in mind the EK block does not cool the memory VRM at all.

While looping 3dmark2011 and then Heaven the highest the memory VRM hit was just under 43c. The highest the core VRM, which is cooled by the EK block, was at the top of the card and that was just under 46c. When 3dmark2011 switched to the CPU test the core VRM did drop faster than the memory VRM. Still that was not even close to an issue since the memory VRM was running so cool anyways. They both dropped to similar temps when not under load very quickly.

Basically what this means to me is EK was right. The memory VRM does not require cooling. I am not saying they shouldn't have cooled it. They should have just to be safe. Regardless it is obvious the memory VRM on the Aorus does not require active cooling.

BTW, I was running the core at +50 and the memory at +500 using MSI Afterburner. That equaled a max core boost of ~2075 mhz and memory speeds over 12,000 mhz. I was at stock voltage but power was set to 150%. Max core temps was 38c with ambient temps of 68f.

I don't know if this helps anyone but it does appear from my non professional tests that the memory VRM is quite alright not being cooled by a water block.

YMMV of course and please don't take this post as fact. It is just my findings and opinions. Cheers!

Good data. Repped.
post #2222 of 2418
Thread Starter 
What's up guys. Glad to see my thread is still going strong! I've just been enjoying the card at a moderate overclock of 2063 playing Project Cars 2 in VR with everything maxed out and super sampling set to 2x. Getting a solid 75 FPS in my DK2. Waiting for a HMD that is extremely high resolution so there will be no screen door.

Recently I've just been playing Forza Motorsport 7. With everything maxed out and the FPS set to unlocked I'm getting upwards of 210 FPS, I'm usually running around 150-170 FPS. No screen tearing even though my 1440p G-Sync monitor only supports 144hz (Acer XB270HU). The only issue is slight stuttering at those high frames so until they implement in game v-sync and pre-rendered frames like they did in FH3. Until then I'm stuck running at 60 FPS (V-Sync) even though that means 72 FPS for my monitor for some reason.

EDIT: POST #2222!!! Going to make 2 wishes!
Edited by RavageTheEarth - 10/7/17 at 1:56pm
post #2223 of 2418
Quote:
Originally Posted by SavantStrike View Post

I would buy a block for the card you already own. Nobody pays full sticker for a used card, so you'd take a hit selling the one you have and buying a new one. You always have the option of going back to air cooled if you keep your current card and just add a block, so it's a more versatile solution.

If I were buying a new card, I'd buy the Gigabyte WB model (which is exactly what I did). The Poseidon is rather large, and does not cool the VRM's as well as the Gigabyte card. It also dumps heat in the case if you let the fans spin. The Zotac card has questionable VRM's (they are not very efficient so they waste a good deal of energy, which is part of why the arcticstorm has such a high TDP limit).

For the card you have (the Gigabyte), I would not recommend the EK block. They neglected to cool the memory VRM's in their design, and it is incompatible with the stock backplate. I would recommend you buy a bitspower block, or even buy a Bykski. Both are fully compatible with the stock back plate, and I believe the Bykski is actually the block Gigabyte chose to go with.

Well I ended up ordering the EK waterblock and backplate because here in Canada there's just no way to order the bitspower or the bykski waterblocks... I looked all over the web and couldn't find anywhere to buy them... Except maybe for the bykski on aliexpress... but then huge custom fees so... yeah...

Apparantly the memory VRM don't even need the cooling all that much
post #2224 of 2418
Memory draws very little power. And the mosfets are generally very efficient so doubt they would radiate more than a watt or two of heat.
post #2225 of 2418
Quote:
Originally Posted by Kutalion View Post

Memory draws very little power. And the mosfets are generally very efficient so doubt they would radiate more than a watt or two of heat.

GDDR5X is more efficient than GDDR5, but this quantity at these speeds is still ~40w under load.

The memory VRM itself, if it's ~90% efficient, would need to disipate about ~4w of heat, but the PCB itself is capable of doing that and keeping the VRM well within spec.
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5820K @ 4.2/3.5GHz core/uncore, 1.175/1.15v Gigabyte X99 SOC Champion (F22n) Gigabyte AORUS GTX 1080 Ti (F3P) @ 2025/1485, 1... 4x4GiB Crucial @ 2667, 12-12-12-28-T1, 1.34v 
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post #2226 of 2418
Today I have oc my Gigabyte Aorus Gtx 1080 Ti Xtreme Edtion thank`s to this thread.
You can check my pc build on my signature.

MSI Afterburner Settings:
Power limit: 150%
Temp Limit: 90ºC
Core clock: +58 (with 60 started to get errors)
Memory Clock: + 400
I have set my own fan speed configuration.
Max temperature Heaven Benchmark 69ºC.

Results: 3DMark TimeSpay: 10252
GPU Score: 10639
CPU Score: 8501

Thank you for all your posts in this thread. Read many pages before starting the OC.
Edited by Valter84 - 10/14/17 at 12:56pm
    
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post #2227 of 2418
does anyone know if replacing thermal pads on a 1080 ti would make much of a difference? I think I have a 1080ti that has some bad QC when it comes to assembling the block, this is pretty common on the Seahawk EK X redface.gif
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post #2228 of 2418
Oddly according to EK their water block isn't compatible with the factory backplate on the gtx 1080 ti aorus xtreme édition and yet I've found a guy on YouTube who seems to install their water block and the factory backplate from gigabyte no problems...?! What to make of this???

https://youtu.be/mzLspCvwP-k
post #2229 of 2418
Quote:
Originally Posted by jonathan1107 View Post

Oddly according to EK their water block isn't compatible with the factory backplate on the gtx 1080 ti aorus xtreme édition and yet I've found a guy on YouTube who seems to install their water block and the factory backplate from gigabyte no problems...?! What to make of this???

https://youtu.be/mzLspCvwP-k

The stock Aorus backplate is trash compared to EK's one anyway. If the screws fit, then more power to the consumer lol. See it as a bonus, don't see it as a guarantee.
post #2230 of 2418
Quote:
Originally Posted by Dasboogieman View Post

The stock Aorus backplate is trash compared to EK's one anyway. If the screws fit, then more power to the consumer lol. See it as a bonus, don't see it as a guarantee.

Well from what I can see, the differences between the aorus factory backplate and the ek are the following:

Ek backplate is much thicker
Ek backplate has less thermal pads than the aorus one and covers less area of the back of the gpu and it's surroundings

So I'm guessing the reason for which eks plate might be better is its thickness. It probably doesn't get as hot because of the thickness although I'm not a physics specialist. Might be I'm completely wrong lol
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