Hi,

Haven't got my aquaero yet (ordered a v5 LT) but I just had a quick question. I know the aquaero is fully independent of the PC and functions when it is not powered. With that in mind, if I set up an alarm to use the ATX break method so the aquaero powers off the PC for zero flow in the water loop, it occurs to me there may be a problem - if I put the PC in standby, and the aquaero detects the pump has stopped, will it trigger the ATX break or is there some workaround in place for this so that standby can work properly?

I know the ATX break cable also has the standby power for the aquaero on it - perhaps I should just not connect this, so the aquaero is not powered on when the PC is in standby, then this problem can't occur... I can't actually think of any reason why the aquaero would need to be powered on when the PC is off (at least not in my application) but there must be some reason that the ATX-break cable also includes the standby power connector???

Thanks

Just to update this, I haven't tested standby yet, but I understand it will work OK.

However, I did need to have standby power connected to use the ATX break function - I have my PSU's ATX-break line connected to the NC (normally closed) pair of relay contacts. If I test triggering an alarm without the standby power connected, the aquaero disconnects ATX break and the PSU powers off, however it comes back on immediately. What I think happens, is the aquaero reacts correctly and opens the relay, but then the aquaeros power fails immediately, and the relay springs closed again. In order to hold the relay open and keep the PSU off, the aquaero needs to have standby power.

I never tested this, but I did think of setting "relay on" in the
"normal operation" alarm actions, then connecting ATX break across the
NO "normally open" relay contacts, however I suspect that for the same
reason (the aquaero having no power when the PC is off), that may also
not work, since without standby power the aquaero would have those relay
contacts open when powered off, and the PC wouldn't be able to be
turned on at all.

I guess that means that with standby power connected as I have it now, if there is an alarm triggered, in order to then power the PC back on again, it is necessary to power-cycle the aquaero to reset the relay. Not tested that far yet though.

Hi Larrywill,

I have tach output connected as well. My motherboard doesn't shut down on RPM signals as far as I can tell, but I am going to install AIDA64 to monitor the rpm signal and shut down if it stops.

I've also connected ATX break so I have a second level of protection, if the shutdown doesn't work (shutdown hangs, rpm signal stop when windows isn't running etc.).