Just a quick note to say how awesome the aquaero is. This thing probably just saved my system.

I had been having strange dropouts in my flow reading, and the other day, my pump seemed to be under-responding to PWM, and dropping to RPM/flow levels below what was requested. Tonight, I had a sudden system shutdown, I figured it was the same again, and that the aquaero had shut the PC down.

I reset, changed the flow meter cable (it's on a fan extension) and tried again. Shutdown again. I jump started my pump, and noted that the water level in my res dropped just as it always does, so I knew the pump was working.

I ended up shorting the ATX break line manually, just to get into Windows so I could get into aquasuite and see what the problem was. All this time I was thinking it was either a faulty flowmeter, or the aquaero messing around - the res level dropping had absolutely convinced me that I had flow.

Then the PC shut down again. This time the aquaero had clearly caught my CPU and GPU temperatures - I felt the line from the GPUs to the CPU, and from the CPU out of the case (to the radbox) and they were hot - probably 50 degrees. Oh dear - clearly no flow.

After more fooling around (drained the PC to get some bubbles in the loop so I could see if/where there really was flow), everything is working fine again and flow is reported normally. I suspect my pump is on the way out. It's brand new, but whatever. Strangely enough, during the low flow reports, when I forced my way into windows, I noted that the pump RPM was normal, despite the flow meter reading 0. Perhaps I had a blockage, but the coolant I drained was uncontaminated, so I am suspecting the pump more.

I just wanted to say thanks to the aquaero team for an awesome product. Without the aquaero, I'd never have known I had low flow, and likely wouldn't have figured out there was a real problem so quickly. The multiple levels of protection offered by all the alarms even protected me when I was a dumbass and ignored/disabled the low flow alarm.

Zitat von »Nihil Simile«

Hello Boris How does the Aquaero shut the PC down when a failure of the cooling system occurs I have only bench tested my AQ5, and I am not sure how this is done.

As Larrywill posted, there are various ways. What I do is use 2 methods - the aquaero emulates a keyboard via the USB connection and can therefore press the power button on the keyboard, and perform a clean windows shutdown. There is also a cable available to do what's called ATX break, which uses the relay on the aquaero to open the pins on the ATX 24 pin connector that shut the PSU off. So I set up alarms in sequence, so for example, my flow alarms are an audible alarm at 0.3gpm, then at 0.2gpm it will cleanly shut down the PC, and if it drops below 0.1gpm it triggers ATX break. I use ATX break for the event that the PC has crashed and is not responding to a shutdown keypress, or that the shutdown is started but doesn't complete which is not uncommon in my experience.