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STRIX OC 4090 + Heatkiller V + U6 Putty = GREAT RESULTS!

5K views 33 replies 9 participants last post by  mahanddeem  
#1 ·
My build just underwent a major revision in which I swapped 4090's and went for the Heatkiller V and decided to use thermal putty over my usual Gelid Extreme route.

I used Upsiren U6 and got EXCELLENT results. My GPU pretty much never goes above 46c and thats with 30c - 32c ambient water (I live in California)

ALSO I am using a NEW Strix OC 4090, equipped with the 301 Nvidia Die revision, and still only using a 1.07v Bios.


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#2 ·
Did you miss a memory chip?
 
#14 ·
Generally, the hyphen between numbers designates a range in English. If one wants to get nitpicky the C's should have been capitalized, the first C is redundant, and spaces aren't needed, but he's still saying his ambients are somewhere between 30C and 32C.
 
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#11 ·
Do your Strix have noticeable less CW compared to 1.1 versions if u owned them ?
My coil whine is pretty minor. Low hum and completely unnoticeable with my case closed.

It's completely luck of the draw with cards though. You could go out and buy 4 and 3 of them will have bad whine, one wont. It's rare you get a card that overclocks well with no whine, thats basically a unicorn.

just had to google what the Upsiren U6 was = Pasta, but what do you use to cool it in the heat?
do you have -30/-32c or am I reading wrong;)
but or nice numbers, you get
I have no idea what your saying lol. What's -32? Im confused.
 
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#12 ·
My coil whine is pretty minor. Low hum and completely unnoticeable with my case closed.

It's completely luck of the draw with cards though. You could go out and buy 4 and 3 of them will have bad whine, one wont. It's rare you get a card that overclocks well with no whine, thats basically a unicorn.
Thats not the case anymore. After MATRIX Asus somehow managed to find a coil which doesnt whine. If your card is new batch ( recently manufactured) it is guaranteed not to whine. ( to a degree like yours low hum )
 
#16 ·
I think if ambient temps are 30,32°C the temperature you are getting are really good, I guess gpu power draw was 500w or somewhere no?

Is this test performed at 4k or 2k? It doesn't matter really if gpu power draw are around 500w the temps are pretty representative.

I get slightly higher hotspot and memory junction temps and I think at 30 ambient I would get considerable worse temps, i might do a revision for the summer to install new thermal pads

Did you use any thermal pads for the backplate? 2mm
 
#18 ·
I think if ambient temps are 30,32°C the temperature you are getting are really good, I guess gpu power draw was 500w or somewhere no?

Is this test performed at 4k or 2k? It doesn't matter really if gpu power draw are around 500w the temps are pretty representative.

I get slightly higher hotspot and memory junction temps and I think at 30 ambient I would get considerable worse temps, i might do a revision for the summer to install new thermal pads

Did you use any thermal pads for the backplate? 2mm
Ambient Water Temps are 32c and yes, tests done with 500w- 530w with 3d Mark Upscaling set to 4k

Temps are between 44c - 48c for both memory and core, hotspot ranges like 52c - 56c

I use GELID Extreme thermal pads ONLY for the backplate (2mm) I used these because they are the softest thermal pads I could find above 12 w/MK
- JFYI, soft actually matters MORE than w/MK when your over about 10 w/MK because you need perfect contact and for it to fill small voids and get into recesses.

I used Kryonaut Extreme because its one of the best thermal pastes, it doesnt last that long though. Only about 8-10 months, then you absolutely need to re-apply it.
 
#20 · (Edited)
I ordered 50g u6 putty paste from aliexpress for summer season jaja

My max temps around 470w gaming with ekwb block, gigabyte oc gaming 4090 usually are 45 or 46 with memory junction and hotspot 10 degrees over and 21°C ambient temp,
Idle temps are 23°C and 30 hotspot, using liquid metal as well, I would like to drop those memory junction temps and a bit hotspot.
I think every water block will have its limitations as well, Ekwb looks good but the water block wasn't as polished and smooth as i was hoping for.
That Heatkiller V looks well made
 
#29 ·
Once and while I do, I'm scoring 28,800 right now with ECC off, Re-Size Bar on, using normal windows boot.

Just pure afterburner tune and 1.1v Bios with a 500w Power Target, 600w Max.
+180 Core
+1980 Memory

That saddles me around 3090 Mhz Core, 1603 Mhz Memory.

I've tried pushing memory above +2000 but inside the 2020'ish territory I start forming artifacts that become noticeable inside specific benchmarks and tests like Heaven. I think +1,980 is my razors edge.
ECC off, normal OS boot, withmy usual fan profiles, stable at 3015MHz core and +1648 memory:
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At 3045MHz core, which is typical for this part underwater or with maxed out fan speed, it's about 100-120 points higher. If I'm using only bench stable settings I can squeeze out a bit more, maybe 3060-3075 core, and +1750 or so on the memory, which is good for about 29.2k without ECC. This Windforce sample has a fairly hard wall around 3090MHz with 1100mV. Even short periods of boosting past this at low temps will crash it.

I wish Nvidia would unlock voltage to 1.2v because the yield from 1.1v to 1.2v is insane compared to the benefit gained from 1.07v to 1.1v. We could all basically push another 100mhz - 150 mhz core since the GPU Core is really power hungry above 3k
More than 1100mV is likely always going to require hardware mods. There is zero incentive for NVIDIA to allow more voltage.
 
#31 ·
ECC off, normal OS boot, withmy usual fan profiles, stable at 3015MHz core and +1648 memory:
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At 3045MHz core, which is typical for this part underwater or with maxed out fan speed, it's about 100-120 points higher. If I'm using only bench stable settings I can squeeze out a bit more, maybe 3060-3075 core, and +1750 or so on the memory, which is good for about 29.2k without ECC. This Windforce sample has a fairly hard wall around 3090MHz with 1100mV. Even short periods of boosting past this at low temps will crash it.



More than 1100mV is likely always going to require hardware mods. There is zero incentive for NVIDIA to allow more voltage.
Yea, thats a sweet score for sure! I'm almost into 29k but I may have to tinker some more right now I'm touching 28,900. It's weird because both my memory mhz and core mhz are higher than yours but your scoring better, I'm going to assume your temps are better than mine. I'm like 47c - 49c during test on both memory and core.
 
#30 · (Edited)
Yea, the only card left that can do higher voltage out of the box is the HOF unless Asus added it to the Matrix. Nice thing is the Asus cards make it very easy to connect an EVC2. I just wish there were bigger gains from using it. On water, it hits a point where the power/temp increase outpaces the clock gains and results in no improvement.