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  #1  
Old 12-04-2019, 03:49 AM
nfxcr3w nfxcr3w is offline
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Default H115i Pro Corsair Support Suggestion

So i was speaking with Corsair support about my low pump speed and they suggested "Try to customize the RPM of your cooling system up to your decide speed." I'm new to this so i don't know what to set it to for my 9900K can someone help please cause i don't know what I'm doing.


Last edited by nfxcr3w; 12-04-2019 at 03:52 AM.
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  #2  
Old 12-04-2019, 07:08 AM
c-attack c-attack is offline
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Well, I’m afraid that was an unfortunate way to describe the process. The Pro series pumps have three fixed speeds — Quiet = 1100, Balanced 2160, Extreme 2850, all +-30 rpm. Those same “presets” on the left do a completely different thing for the fans. You have properly created a custom fan curve with the +, but that will only apply to the fans. Click on the preset to the left. It will highlight yellow. Then click the fan or pump on the right to apply that setting. It will outline yellow to match.

Currently you are in Balanced mode and that is where I recommend most people leave it all the time. You can test out Extreme for performance vs noise, but it usually comes up with no change in the performance category. Most users report a 0-1C difference. When comparing, look at the H115i Pro Temp to the right. That is coolant temp and the variable directly affected. -1C coolant means -1C cpu temp. Same thing on the positive side of the scale. Small potatoes I’m afraid. The one thing I will suggest is you avoid the Quiet 1100 rpm pump speed for anything except slogging through a spreadsheet. There is a definite temp penalty. While pump on AIO cooler’s is rarely a critical factor and faster doesn’t have continuing benefits, it is possible to be too slow.

So what’s the real issue? Looking for better cpu temps? Something else? Side note: the fan curve you created above is set to run from cpu temperature. I suggest not doing that. I will make the fans race up and down like an air cooler. Water cooled systems don’t need to work that way and there is no performance benefit to it.

*OK, I remember now. Your pump speed is just a touch lower than expected. Did support address that part of it? Or say it was within the normal +-10%?

Last edited by c-attack; 12-04-2019 at 07:11 AM.
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  #3  
Old 12-04-2019, 09:40 AM
nfxcr3w nfxcr3w is offline
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Quote:
Originally Posted by c-attack View Post
Well, I’m afraid that was an unfortunate way to describe the process. The Pro series pumps have three fixed speeds — Quiet = 1100, Balanced 2160, Extreme 2850, all +-30 rpm. Those same “presets” on the left do a completely different thing for the fans. You have properly created a custom fan curve with the +, but that will only apply to the fans. Click on the preset to the left. It will highlight yellow. Then click the fan or pump on the right to apply that setting. It will outline yellow to match.

Currently you are in Balanced mode and that is where I recommend most people leave it all the time. You can test out Extreme for performance vs noise, but it usually comes up with no change in the performance category. Most users report a 0-1C difference. When comparing, look at the H115i Pro Temp to the right. That is coolant temp and the variable directly affected. -1C coolant means -1C cpu temp. Same thing on the positive side of the scale. Small potatoes I’m afraid. The one thing I will suggest is you avoid the Quiet 1100 rpm pump speed for anything except slogging through a spreadsheet. There is a definite temp penalty. While pump on AIO cooler’s is rarely a critical factor and faster doesn’t have continuing benefits, it is possible to be too slow.

So what’s the real issue? Looking for better cpu temps? Something else? Side note: the fan curve you created above is set to run from cpu temperature. I suggest not doing that. I will make the fans race up and down like an air cooler. Water cooled systems don’t need to work that way and there is no performance benefit to it.

*OK, I remember now. Your pump speed is just a touch lower than expected. Did support address that part of it? Or say it was within the normal +-10%?
All they said was "Thanks for your reply. I will address this Technical support team to further check the issue you are having.Thank you for choosing Corsair. And Try to customize the RPM of your cooling system up to your decide speed.And all they gave me was these pictures to go by that's all they sent me. I was speaking with Joseph Icaranom (Corsair)




Last edited by nfxcr3w; 12-04-2019 at 09:43 AM.
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  #4  
Old 12-04-2019, 09:45 PM
c-attack c-attack is offline
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Obviously not the same "H115i" you have, although that does not change the mechanic for applying fan curves, pump speeds, or the like. However, I don't really like the CPU core #1 temp graph for ANY use. But of the most interest is the top picture with a H115i pump running at "900 rrpm" in Quiet mode. Unless I missed a major firmware update, that pump never ran below 1900-2000 RPM. The Pro series was the first to utilize a real low speed mod (1100 rpm). This has me curious.

However, the above is no help to you. It sounds like they have passed your question up the chain to a technical specialist for an answer to the 'how low is too low' question. Nothing to do but wait I guess. However, I would stick to balanced mode. There is no meaningful difference between 1900-2000-2100 rpm. In the short term, there isn't an issue.

As for fans, that is something you can do a custom curve for and I recommend most people eventually do this. Your baseline coolant temp (27C above) is very dependent on room and case temp. I can have a 10C swing between Winter and Summer in the room. that is more than the load delta Temp making it the most dominant factor.

Try this with changes as you see fit. I will assume your typical baseline coolant temp is 25-27C when on the desktop.

20C=500
25C=650
28C=800
31C=950
35C=1100
40C=1250 (max on H115i pro. Will only run 1100 or so with radiator resistance)

There really is no hard line with this stuff. +50 rpm will not change your coolant temp. You are balancing noise vs acceptable temp levels. When in doubt, always side with the quieter setting. Getting irritated by your fans is not worth 0.5C in CPU temp. I would not expect you to get beyond 33C in this set-up, but there are always other factors like GPU waste heat, case layout, or unique room factors.
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  #5  
Old 12-05-2019, 03:26 AM
nfxcr3w nfxcr3w is offline
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Quote:
Originally Posted by c-attack View Post
Obviously not the same "H115i" you have, although that does not change the mechanic for applying fan curves, pump speeds, or the like. However, I don't really like the CPU core #1 temp graph for ANY use. But of the most interest is the top picture with a H115i pump running at "900 rrpm" in Quiet mode. Unless I missed a major firmware update, that pump never ran below 1900-2000 RPM. The Pro series was the first to utilize a real low speed mod (1100 rpm). This has me curious.

However, the above is no help to you. It sounds like they have passed your question up the chain to a technical specialist for an answer to the 'how low is too low' question. Nothing to do but wait I guess. However, I would stick to balanced mode. There is no meaningful difference between 1900-2000-2100 rpm. In the short term, there isn't an issue.

As for fans, that is something you can do a custom curve for and I recommend most people eventually do this. Your baseline coolant temp (27C above) is very dependent on room and case temp. I can have a 10C swing between Winter and Summer in the room. that is more than the load delta Temp making it the most dominant factor.

Try this with changes as you see fit. I will assume your typical baseline coolant temp is 25-27C when on the desktop.

20C=500
25C=650
28C=800
31C=950
35C=1100
40C=1250 (max on H115i pro. Will only run 1100 or so with radiator resistance)

There really is no hard line with this stuff. +50 rpm will not change your coolant temp. You are balancing noise vs acceptable temp levels. When in doubt, always side with the quieter setting. Getting irritated by your fans is not worth 0.5C in CPU temp. I would not expect you to get beyond 33C in this set-up, but there are always other factors like GPU waste heat, case layout, or unique room factors.
Thank you c-attack i remember you was the one that recommended me the H115i Pro :) as for case heat i have the Thermaltake View 71TG which as open vents all over but at some point i will upgrade them fans to corsair fans. But the graphic card i have right now the GTX970 seems to generate a lot of heat cause the heat sink on the MSI GPU is hot to the touch could fry eggs off of it so to speak :D max I've seen coolant temp is 37c that's if i stressed it with a render test.
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  #6  
Old 12-05-2019, 06:45 AM
c-attack c-attack is offline
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All GPUs are little hot rocks. Bump the curve up if needed. 100 rpm is not meaningful for cooling. It may be meaningful for noise. The effective work zone for those 140mm is between 700-1200, so as long as you are in that range somewhere, you should get enough airflow for cpu cooling.
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  #7  
Old 12-05-2019, 09:26 AM
nfxcr3w nfxcr3w is offline
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Quote:
Originally Posted by c-attack View Post
All GPUs are little hot rocks. Bump the curve up if needed. 100 rpm is not meaningful for cooling. It may be meaningful for noise. The effective work zone for those 140mm is between 700-1200, so as long as you are in that range somewhere, you should get enough airflow for CPU cooling.
Thank you c-attack would you say the 9900K is fine for 73c under work load at idle it hovers around 25c but it's starting to get cold lately here in the UK. I just find these thermaltake fans are not as good as corsairs one for pushing more airflow.
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