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Swiftech H220/H320/H220X/H240X/H140X and CM Glacer 240L/360L Owners' Club - Page 684

post #6831 of 20727
Quote:
Originally Posted by Badness View Post

Has any benchmark or review shown this fact?

I think Martin of Martinsliquidlab and Linus of Linus Tech Tips both showed this to be the case. Our own in-house testing was also able to demonstrate this.
post #6832 of 20727
Had my H320 for about a month now and today I finished the loop. No issues at all. I'm very happy with it

post #6833 of 20727
So there's no point running H320/220 at over 1800RPM (both pump and fans?) for just a CPU?

How do you limit it? Can you do it in BIOS (ASUS Z87-Plus)?
    
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post #6834 of 20727
Thread Starter 
Quote:
Originally Posted by crabula View Post

So there's no point running H320/220 at over 1800RPM (both pump and fans?) for just a CPU?

How do you limit it? Can you do it in BIOS (ASUS Z87-Plus)?

Before you attempt to modulate the RPM, make sure to have the pump plugged into the splitter (in the red plug) and the splitter into the CPU_FAN header. Then you can go into your BIOS and change that fan setting, in your case likely to Manual, and then I would recommend using speedfan to lower the RPM of the CPU FAN channel. If you want to run your fans at MAX RPMs or higher than the percentage of the pump (e.g. the pump at 1800 rpm is roughly 35% on speedfan (guessing), so your fans plugged in the splitter would be running similarly), you'll need to take the fans off the splitter and plug them in elsewhere. Alternatively, you can run the fans on the splitter off the CPU_OPT channel and the pump off the CPU_FAN header, so the RPMs will be controlled separately. However, you need to first have the devices plugged into the splitter and the splitter in the fan port so you can verify that it is running PWM and not voltage. If the splitter is plugged in, and you can adjust the speed in speedfan (after the header is vhanged to manual in the BIOS), then it is running PWM. If you cannot change the RPMs in the same situation, and the devices are all running full speed, the header is not running PWM, but modulating voltage. In this scenario, it's better to leave everything running full speed via the splitter. The splitter is your protection device against voltage modulation, which can kill the pump in an unknown amount of time, so be mindful of this.
Edited by Phelan - 9/28/13 at 9:27am
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post #6835 of 20727
Quote:
Originally Posted by crabula View Post

So there's no point running H320/220 at over 1800RPM (both pump and fans?) for just a CPU?

How do you limit it? Can you do it in BIOS (ASUS Z87-Plus)?

I disagree with that assessment. If you had an AMD 8350 that you are doing an overclock abobe 4.7 -5.0 GHZ you will need to rev that pump well above 2200 when under 100% load. So it really depens what you are doing with your cpu and which cpu you have. I have mine running above 2500 rpm most of the time and my fans at 1800 rpm with very low noise.
post #6836 of 20727
Thread Starter 
Quote:
Originally Posted by os2wiz View Post

I disagree with that assessment. If you had an AMD 8350 that you are doing an overclock abobe 4.7 -5.0 GHZ you will need to rev that pump well above 2200 when under 100% load. So it really depens what you are doing with your cpu and which cpu you have. I have mine running above 2500 rpm most of the time and my fans at 1800 rpm with very low noise.

Have you tried running the pump at 1800 and the fans at max? Mind you, you can't run the pump at 1800 and the fans max while running all on the same splitter, but my assessment was solely about the pump. The pump doesn't have to be revved higher than that in a CPU-only loop for max performance. The fans do, however.
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post #6837 of 20727
Quote:
Originally Posted by BramSLI1 View Post

I think Martin of Martinsliquidlab and Linus of Linus Tech Tips both showed this to be the case. Our own in-house testing was also able to demonstrate this.
thanks
 
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post #6838 of 20727
Quote:
Originally Posted by Phelan View Post

Have you tried running the pump at 1800 and the fans at max? Mind you, you can't run the pump at 1800 and the fans max while running all on the same splitter, but my assessment was solely about the pump. The pump doesn't have to be revved higher than that in a CPU-only loop for max performance. The fans do, however.

No reason to have the pump on the same splitter as the fans. I have the pump on cpu fan and the splitter on cpu option. They are both pwm . That is on my Crosshair V Formula Z.
post #6839 of 20727
Quote:
Originally Posted by os2wiz View Post

No reason to have the pump on the same splitter as the fans. I have the pump on cpu fan and the splitter on cpu option. They are both pwm . That is on my Crosshair V Formula Z.

Did they test the pump speed required on a 5 GHZ FX-8350 overclock??? The heat is very substantial with such an overclock.
post #6840 of 20727
What he's saying is fan speed has a greater impact on temps than pump speed. Martin's own testing shows this.

It shouldn't matter that an 8350 produces more heat than an Intel chip because this principle holds true for loops with multiple components (GPU's and CPU) or pretty much any loop. Yes there is some increase in temperature at lower pump speeds but not as much as lowering fan speed. Some blocks are optimized for low flow too.
Quote:
The increase of pump speed from 30% to 100% accounted for almost a 1 degree improvement in performance.

You'll see a lot more than 1 C change going from 100% fan speed to 30%.
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