Arizona Willie Posted December 10, 2011 Share Posted December 10, 2011 Does the pump run at a constant speed or does it vary? If it varies what controls it? I wonder if the pump speed varies with the fan speed controlled by the button on the front. Would seem logical that if you need more fan speed you might need the pump to move more liquid also. If so, some of the high speed fan noise could be increased noise from the pump. Link to comment Share on other sites More sharing options...
parsec Posted December 10, 2011 Share Posted December 10, 2011 All the newer, even numbered H-series cooler pumps run at a constant speed. I don't know about the other H-series coolers, I don't own any of them, but they are likely the same. A H80's pump speed is ~2000 RPM. Only the fans speed change, via the fan controller. No one has ever reported changes in the pumps speed, which is easy to monitor. Link to comment Share on other sites More sharing options...
Arizona Willie Posted December 10, 2011 Author Share Posted December 10, 2011 How do you monitor the pumps speed? Link to comment Share on other sites More sharing options...
parsec Posted December 10, 2011 Share Posted December 10, 2011 The single wire with the fan connector on it should be connected to the CPU Fan header on your board. You can then see the pumps speed in the BIOS, or using whatever hardware monitoring software you use when in Windows, such as whatever came with your board. Link to comment Share on other sites More sharing options...
Arizona Willie Posted December 11, 2011 Author Share Posted December 11, 2011 There is no single wire coming from the H80. The two fans that blow on the radiator are plugged into the controller on the side of the block unit. There is a 3 wire connection that is plugged into the cpu_fan as shown in the motherboard manual. The question is ... is that reported speed from the pump or the two fans? Presumably both fans are running the same speed being twins, although that isn't necessarily the case. The outside fan could easily get dirtier than the inside fan and run a bit slower. Right now it is reporting 2020 rpm. I will watch it and see if if varies. Link to comment Share on other sites More sharing options...
ryukensfj Posted December 11, 2011 Share Posted December 11, 2011 There is no single wire coming from the H80. The two fans that blow on the radiator are plugged into the controller on the side of the block unit. There is a 3 wire connection that is plugged into the cpu_fan as shown in the motherboard manual. The question is ... is that reported speed from the pump or the two fans? Presumably both fans are running the same speed being twins, although that isn't necessarily the case. The outside fan could easily get dirtier than the inside fan and run a bit slower. Right now it is reporting 2020 rpm. I will watch it and see if if varies. That's the single wire coming from the H80... if you have that plugged into the cpu_fan then the monitoring software will report the pump speed... Link to comment Share on other sites More sharing options...
Arizona Willie Posted December 11, 2011 Author Share Posted December 11, 2011 OK , you're calling the 3 wire cable a single wire. I thought you were referring to a single wire like the yellow wire that comes from most case fans to report the speed. Like the one I have that is too short and won't reach any of the spots to plug chassis fans in. :( The speed being reported as CPU fan is varying by 100 or so up and down and I haven't even put it under a load yet, but presumably that isn't a fan speed but a pump speed. Link to comment Share on other sites More sharing options...
peanutz94 Posted December 12, 2011 Share Posted December 12, 2011 I thought you were referring to a single wire like the yellow wire that comes from most case fans to report the speed. Like the one I have that is too short and won't reach any of the spots to plug chassis fans in. :( Yes that wire. It should be a single yellow wire in a standard three wire fan plug on the end of it. Unless that is plugged in to a MB fan header you can not read pump speeds. Link to comment Share on other sites More sharing options...
Arizona Willie Posted December 12, 2011 Author Share Posted December 12, 2011 There is no such wire on my H80. There is only a 3 wire cable and there appears to be no place for such a cable. Does anyone have a yellow fan speed wire on their cooler? Link to comment Share on other sites More sharing options...
parsec Posted December 12, 2011 Share Posted December 12, 2011 Let's start over, I see where the confusion started, but forget that. Yes, only one cable, consisting of three wires, comes from the H80's pump/fan controller assembly. It is all black, similar in construction to the IDE hard drive ribbon cables, but just has three conductors, so is barely a ribbon cable. This three wire or conductor cable then splits into two sections, one section with two of the conductors, the other with one conductor. The two conductor section ends in a male molex connector, that must be connected to the power supply. The single conductor section ends in a standard three pin female fan connector, although only one pin is used, of course. The fan-type connector should be connected to the mother boards CPU Fan header, so the pumps speed can be verified and monitored. You have this all connected correctly. The ~2000 RPM speed you saw in your BIOS or software is the pumps speed, that does not vary with the CPU temperature, or fans speed. The variations in speed you see are just the normal fluctuations of the pumps speed, just like a fan has. In my earlier post, I wrote: "The single wire with the fan connector on it should be connected to the CPU Fan header on your board." I'm sure you see what I meant by that now. Link to comment Share on other sites More sharing options...
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