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1. Why would you want the pump connected via USB? Even the quietest pumps are capable of maintaining a flowrate that will see component performing properly, which makes for quite minimal gains from any ability to temporarily boost speed. And since the pumps are already quiet, there's no reason to turn them down any further.
2. Items like the BigNG or Koolance's newer PM-200 are other software controlled options, although once programmed, both have the option of running without any further USB connection.
3. That falls into my personal category of "Why?". Any sudden water-loss will see your temps quickly start to rise. Far simpler to simply set the BIOS to shutdown if the temperatures exceed a certain level, as determined in advance by a worst-case full system heat-loading, plus a little bit of leeway. This also effectively protects against pump and fan failure.
add1. the point of connecting the pump is the pump shows my water temp, flow, and also handles all of the associated fans to the system. E.g. my 3 fans on my radiator. I agree, there is not much need to play with the power usage of the pump, however, I am constantly "playing" with my setup and its nice 'n' easy to play using the provided suite.
add2. I haven't had time to invest too much reading in the systems/software mentioned, however, I really like to be able to "optimize" according to my application with the click of a mouse. Also, I realize turning a "hard" dial is not such a painful task, however, I prefer working with numbers rather than positions of a dial. Furthermore, I am guessing you have no idea what types of controls I have with the suite. Specifically the most useful control is setting a nominal temperature of the water and a max/min on the fan speeds according to the nominal value. What does this do? When my computer is at idle the fans come on at about 60% once every 40minutes. Thats quite nice and very quiet!
add3. I totally agree with you. This is definitely a personal thing. I guess I just think its cool and also, I am sometimes "not caring" about remembering my water needs to be added about once every 3 months. (lets just say I am also not the best gardener!) Taking a quick look at my digital meter I can tell if its time to: Shutdown, remove 8 screws, remove the cap to the reservoir, and finally top off my system.
Also guys, you seem to get a bit irritable... I am only here to share my experience, learn from you and also hopefully get some assistance in the future when I look to upgrade...

unk: (I never realized how big the Canadians are in modding! This forum is really great and you guys seem to have a lot of fun!)
I am also not trying to say Aqua is the best retailer. And someone also mentioned they feel Aqua is the best in Europe and it just so happens that's where I am situated hence I am happy with my choice.
Regards from Vienna :thumb: