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  Topic Review (Newest First)
03-12-2019 12:09 PM
8051
Quote: Originally Posted by m3ta1head View Post
Successfully mounted a MK-26 to my Zotac Amp Extreme, using Enzotech ramsinks on the memory components as this card lacks a baseplate. I was able to get enough mounting pressure for good contact and the results are fantastic! With the undervolt I'm running (2ghz/.975v) full load temps are 44-46C. With the card pushed harder, (2.1ghz/1.093v) it still never exceeds 50C (at 24C ambient).
Those are amazing temps for a 2.1 Ghz. overclock. It takes me 1.181V to get to 2152 Mhz. and that throttles if I exceed 63°C. I wonder if you could get to 2.2 Ghz. at higher vcores. The airflow you're getting over those copper heatsinks on the VRAM probably provides secondary cooling to the GPU as well.

Does the backplate of your 1080Ti AMP Extreme have any thermal tape between it and the PCB? I remember my 980Ti AMP Extreme didn't.
03-12-2019 11:56 AM
8051
Quote: Originally Posted by HeroofTime View Post
@8051 Do you still have the card? How long did it last until it blew up? Take a picture of it and show what part of the card fried. If you don't feel comfortable doing that, at least PM me the picture so I don't blow my GPU up!

I might be using a custom VBIOS, and I'm eyeballing the Palit 350W VBIOS after getting this cooler situation sorted out. I took pictures of the stock cooler and made sure that I'll be cooling exactly what the factory heat sink was cooling too. If it's not clear using just this picture alone, see my previous post a few posts back and see where I've placed the heat sinks in the other picture to get a better idea.
Here's the part that blew, it looks like a transistor since it's a three terminal SMD.
03-12-2019 11:46 AM
8051
Quote: Originally Posted by m3ta1head View Post
This is the fan in question: http://thermalright.com/product/ty-143/

The official listed dimensions are actually 152x140x26.5mm. The pics of the 1080ti with the MK-26 are in my original post, were you not able to see them?

edit: here's an external link just in case https://imgur.com/a/i8gWUjk
One of Doyll's recommended fans. I have one that I've never been able to use because a noctua NF-A14 ippc3000 fit better w/my phanteks phtc14pe.
03-12-2019 11:34 AM
8051
Quote: Originally Posted by airisom2 View Post

Both the MK-26 and Morpheus II are good heatsinks, and both are dated designs, especially the latter. The Morpheus style heatsink was originally from the Logisys VC6006 Dracula which came out around 2005. Mk-26 is 2012. Only difference between the Dracula, M1 and M2 are the accessories and mounting plates. The Core edition is a powder coated + clear coat which makes the heatsink fins twice as thick, but does not hinder performance surprisingly. MK-26 black version was done right with electroplating.

Keep in mind that the review Herooftime posted is using the same 120mm fans on both coolers. The M2 doesn't officially support 140mm fans, and the MK-26 is wider to accomodate the width of a 140mm fan. Because of that, the 140mm fan will utilize some more surface area on the MK-26 which should drop temps a bit more, though it's still going to be really close to the M2 overall.

The Gigabyte 1080ti gaming does not have a baseplate that covers the VRMs, but does have a VRAM baseplate. You'll have to use the included VRM heatsink to cover the mosfets back there.
this article (https://www.hardwaresecrets.com/prol...oler-review/7/) has the MK-26 beating out an Arctic Accelero Xtreme III by 5°C in temperature delta,
an Arctic Accelero Hybrid by 4°C and a Gamerstorm Dracula by 3°C (this last is very similar to the Raijintek Morpheus).

The Gigabyte 1080Ti Gaming OC has a portion of the heatsink that contacts the MOSFET's through a thermal pad. My Gigabyte 1080Ti Gaming OC fried after replacing the stock heatsink w/an Accelero Extreme III, I had glued heatsinks on all the MOSFET's and some caps. A component on the backside (which I have yet to identify) of the PCB blew on boot (i.e. when not overclocking).
03-12-2019 11:16 AM
JackCY Because the limit is not airflow but getting heat away from dies and getting heat away from transistors to the heatsink through the die. Many large coolers are cold yet your core temperatures are high, the bottleneck is elsewhere and not in fans or fin area.
03-12-2019 10:55 AM
Melcar Yeah, having those TYs at full blast is probably not doing much, except maybe being very good at blowing heat away from the VRMs. The TY-143s on my NH-D15 "cap out" their cooling capacity at around 1500rpm. Going any higher does not cool any better at all. This is with two PH-F140MP at full blast. Adding a third or fourth intake fan "unleashes" the TYs.
03-12-2019 10:49 AM
m3ta1head
Quote: Originally Posted by doyll View Post
What is the maximum speed you use TY-143 fans at on MK-26? I'm guessing about half speed is more than enough.

If you are using more rpm than that your case is probably not supplying enough cool airflow to them. 2x TY-143 2500rpm 130cfm each is 260cfm of airflow through the MK-26, so case intake fans need to be flowing at least that same 260cfm to them (plus whatever airflow your CPU cooler and any other component coolers are using) .. at a guess your case needs to be flowing ab out 400-500cfm to be able to supply cool air to components.
(I have found cases usually need to flow 120% to 150% more than component airflow to receive air less than 5c warmer than room when all components are at 100% load)


You might find below link to how airflow works and how to optimize case airflow of interest.
https://www.overclock.net/forum/22319249-post5.html
This is the fan curve I'm using. Realistically, since temps are so low the fans never exceed 60% speed. Thanks for that link! Very interesting read.

03-12-2019 06:34 AM
doyll
Quote: Originally Posted by m3ta1head View Post
This is the fan in question: http://thermalright.com/product/ty-143/

The official listed dimensions are actually 152x140x26.5mm. The pics of the 1080ti with the MK-26 are in my original post, were you not able to see them?


edit: here's an external link just in case https://imgur.com/a/i8gWUjk
What is the maximum speed you use TY-143 fans at on MK-26? I'm guessing about half speed is more than enough.

If you are using more rpm than that your case is probably not supplying enough cool airflow to them. 2x TY-143 2500rpm 130cfm each is 260cfm of airflow through the MK-26, so case intake fans need to be flowing at least that same 260cfm to them (plus whatever airflow your CPU cooler and any other component coolers are using) .. at a guess your case needs to be flowing ab out 400-500cfm to be able to supply cool air to components.
(I have found cases usually need to flow 120% to 150% more than component airflow to receive air less than 5c warmer than room when all components are at 100% load)


You might find below link to how airflow works and how to optimize case airflow of interest.
https://www.overclock.net/forum/22319249-post5.html
03-11-2019 04:14 PM
m3ta1head
Quote: Originally Posted by 8051 View Post
What kind of fans are those? I've never come across 151x141mm fans. Is the fan 141mm thick or 151mm thick? Do you have any pics of your MK-26 setup w/your 1080Ti AMP Extreme?
Quote: Originally Posted by doyll View Post
Probably 151x141x25mm or 26mm thick.
This is the fan in question: http://thermalright.com/product/ty-143/

The official listed dimensions are actually 152x140x26.5mm. The pics of the 1080ti with the MK-26 are in my original post, were you not able to see them?


edit: here's an external link just in case https://imgur.com/a/i8gWUjk
03-11-2019 03:30 PM
doyll
Quote: Originally Posted by 8051 View Post
What kind of fans are those? I've never come across 151x141mm fans. Is the fan 141mm thick or 151mm thick? Do you have any pics of your MK-26 setup w/your 1080Ti AMP Extreme?
Probably 151x141x25mm or 26mm thick.
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