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Swiftech H220/H320/H220X/H240X/H140X and CM Glacer 240L/360L Owners' Club - Page 251

post #2501 of 20728
Quote:
Originally Posted by MrStick89 View Post

My H220 should be here tonight. After reading the last few pages I am wondering if I should flush the radiator? If so what are the steps to doing this ? If I strain the coolant in a coffee filter or something can I reuse it?

see this video:
except for adding and modifying the GPU block and tubing, the filling process is exactly the same.

as far as reusing the fluid, i dont see why not if its filtered. Supplement it with distilled water as well since you may lose some fluid.
 
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post #2502 of 20728
Quote:
Originally Posted by ez12a View Post

as long as its getting a constant 12v it's improbable that it was running below 1200rpm.

If it was, the pump was under 1200 it was probably not controlled by PWM and instead was controlled by voltage which could cause pump failure. That is of course assuming the PWM circuitry was working properly.

The motherboard uses 4pins, so it was PWM. But, this doesn't mean it cant put the output RPM lower than 1200. It will constantly get about 12V--as PWM does not adjust the voltage but the "ON/High" of the square-wave. From what I remember, but this can be diff. type of motors, if the pulse-width is too short (the ON/High), some motors will stutter, cease, or vibrate. If this was true for this the H220 pump, it simple means the that there was still a flow, but not a constant one.

ST PWM 8-ways splitter should be fine, more than an likely parallel outputs design, with a constant 12V (from the molex), and just passes on the pulse-width from the "CPU fan1" output.
  
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post #2503 of 20728
Quote:
Originally Posted by MrStick89 View Post

My H220 should be here tonight. After reading the last few pages I am wondering if I should flush the radiator? If so what are the steps to doing this ? If I strain the coolant in a coffee filter or something can I reuse it?
Ez12a posted what you can do, but I don’t see any reason to do it yet. There is no reason to assume you will have a problem. Just install and test it.
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post #2504 of 20728
Quote:
Originally Posted by MrStick89 View Post

My H220 should be here tonight. After reading the last few pages I am wondering if I should flush the radiator? If so what are the steps to doing this ? If I strain the coolant in a coffee filter or something can I reuse it?

These were all flushed and tested here prior to being shipped. You shouldn't have to do any maintenance to it prior to installing it.
post #2505 of 20728
Quote:
Originally Posted by clspdhax1 View Post

The motherboard uses 4pins, so it was PWM. But, this doesn't mean it cant put the output RPM lower than 1200. It will constantly get about 12V--as PWM does not adjust the voltage but the "ON/High" of the square-wave. From what I remember, but this can be diff. type of motors, if the pulse-width is too short (the ON/High), some motors will stutter, cease, or vibrate. If this was true for this the H220 pump, it simple means the that there was still a flow, but not a constant one.

ST PWM 8-ways splitter should be fine, more than an likely parallel outputs design, with a constant 12V (from the molex), and just passes on the pulse-width from the "CPU fan1" output.

yes but i believe the built in circuitry on the pump itself allows the PWM signal to go down to a minimum of 1200 and not any lower. If I go 0% in speedfan on my PWM header, the pump still runs at 1200 rpm. The pump is hardwired to run at 1200 rpm minimum given 12v. Unless the PWM circuitry was faulty, it's impossible to run it below 1200 rpm if fed 12v.

and as mentioned before in the thread, not all manufacturers implement 4 pin headers the same. The only way to know for sure is to test it with a 3 pin fan. Asus has been known to have at least one pseudo 4 pin.

of course all of this is negated if used with the splitter. To avoid potential accidental voltage modulation of the pump, use the splitter.
Edited by ez12a - 5/9/13 at 4:28pm
 
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post #2506 of 20728
Quote:
Originally Posted by ez12a View Post

yes but i believe the built in circuitry on the pump itself allows the PWM signal to go down to a minimum of 1200 and not any lower. If I go 0% in speedfan on my PWM header, the pump still runs at 1200 rpm. The pump is hardwired to run at 1200 rpm minimum given 12v. Unless the PWM circuitry was faulty, it's impossible to run it below 1200 rpm if fed 12v.
..

I see your point. Hopefully that is correct, about the pump. Only the engineers at ST would know what their supplier have provided.
  
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post #2507 of 20728
Quote:
Originally Posted by ez12a View Post

yes but i believe the built in circuitry on the pump itself allows the PWM signal to go down to a minimum of 1200 and not any lower. If I go 0% in speedfan on my PWM header, the pump still runs at 1200 rpm. The pump is hardwired to run at 1200 rpm minimum given 12v. Unless the PWM circuitry was faulty, it's impossible to run it below 1200 rpm if fed 12v.
I was able to run my pump below 1200 rpm, could be part of the reason of why it failed. I always ran it above 12% on pwm which was roughly 1200 rpm.

New pump should be here tomorrow :-)
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post #2508 of 20728
I still think there is something to pump failures and folks plugging the pump directly to motherboards. Using the splitter ensures good 12v power.

Two things I continue to see. People running the reservior up side down without a sepate reservoir or T line to properly trap air and people plugging the pump directly into the motherboard which could stress the pump due to poor power or low voltage. Neither is a good idea IMO.

Just because you can drive on the left side of the road doesn't mean you should..smile.gif
    
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post #2509 of 20728
In my case, I can only mount it upside down. Barely fits as it is, but I expected that. Until I get a new case, it's going to have to do. I'm pretty sure even Swiftech says it's OK like that. I'm also using the Splitter it came with, I don't see why not use it, it's convenient IMO.
post #2510 of 20728
Quote:
Originally Posted by Martinm210 View Post

I still think there is something to pump failures and folks plugging the pump directly to motherboards. Using the splitter ensures good 12v power.

Two things I continue to see. People running the reservior up side down without a sepate reservoir or T line to properly trap air and people plugging the pump directly into the motherboard which could stress the pump due to poor power or low voltage. Neither is a good idea IMO.

Just because you can drive on the left side of the road doesn't mean you should..smile.gif

I've talked with Gabe and Stephen about powering the pump directly off of the motherboard and neither of them see an issue with this. They've informed me that as long as the board is able to provide the necessary 6 Watts and about a half an amp (most boards are able to provide about twice that to their fan headers) then there shouldn't be any issues. Given that information I really don't see why the motherboard couldn't handle powering this pump.
Edited by BramSLI1 - 5/10/13 at 9:12am
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