Originally Posted by mandrix
Hmm. On your psu selection for 5V SB...don't most psu's have +5VSB?
I was thinking this was common, but I'm far from a psu expert. As you may remember, I'm tapping from the +5VSB on my SeaSonic to energize a relay on system start.
Congrats on your remote setup!
All PC PSU's have +5VSB, but keep in mind that I have 4 PSU's total, only 2 of which are PC type PSU's:
Primary PSU . . . . . . . . in the usual location behind the lower rad, powers the Mobo, 1st GPU, and perhaps the case lighting (NZXT 750W)
Secondary PSU . . . . . . under the optical drive bay cage for the 2nd, 3rd, & 4th GPU's . . . this one has only PCIe connections (NZXT 1000W)
Auxilliary 12V PSU . . . . mounts on the forward mobo tray area and supplies 12V for the rad fans controller and the linear actuators, with it's +5VSB supplying the RC board
Auxilliary 24V PSU . . . . mounts on the forward mobo tray area as well, and suppplies 24V for the six D5's, and with additional voltage regulators, supplies 5V and 12V for the 3 channel PWM controller, the flow meters, and the flow rate / RPM displays.
It was my selection of the Auxilliary PSU's that I was referring to, when I mentioned that having a +5VSB, (and contact on/off control) were part of the selection criteria, as only the higher end units have those features, while most do not.
The reasoning behind the PSU setup is multi fold:
To allow me to run the pumps for leak testing etc. without having to have any power to the system at all, and unplugging mobo cables just isn't practicle for something this big with hard to reach places
To allow me to open the side window to perform maintenance in the event of some problem, like a leak where powering the on the main PSU's would be contra-indicated, or the system fails to power up for some reason
The gull wing side window can't easily / reasonably be removed without it being opened, so to insure access to the inside of the PC, I have to have an essentially dedicated system to control it with built in back-ups and manual capabilities.
The way I have it all configured;
When the system powers up normally, it powers on all three additional PSU's so everything functions normally.
Additionally, I can power on either of the Auxilliary PSU's independantly of each other and of the system PSU's for testing, maintenance, or diagnostics when required.
Not exactly simple, but it does help to cover possible contingencies, and prevent me from painting myself into a corner with very slow drying paint.
DarleneEdited by IT Diva - 3/3/13 at 7:00am