Dual system, one loop: Possible with manual pump and fan control?

[Mortis Angelus]

Let's say I have two separate PC systems, but I only want one loop.

 

If I would use a Phanteks dual PSU or their splitter-board, either system should power up the PSU (also how does booting on the second system not shut down the psu for the first system?) and if I have manual pump and fan control hooked up directly to the PSU it should work right as the fans and pumps are not dependent on the temps of either systems?

[Electronics Wizardy]

Id probably just get a diode and power the pump and fans from that. Then if either systm is on the pump and the fans all turn on

[Mortis Angelus]

10 minutes ago, Electronics Wizardy said:

Id probably just get a diode and power the pump and fans from that. Then if either systm is on the pump and the fans all turn on

Please elaborate. I am a complete beginner when it comes to electrical systems and connecting electrical stuff outside of intended use

[Lipe123]

I'd get a small 12v only power brick and wire the pump and fans on that and just switch it on manually.

 

You're not supposed to connect two PSU's together in any way, they might have small voltage differences and that will send power from one psu into the other and.. just don't.

 

Get a stock standard 12V psu like this: https://www.amazon.ca/SuperNight-Switching-Transformer-Wireless-Switches/dp/B0776TDRL8/

For fan control just put a old school variable resistor/potentiometer.

It wont be sexy but its easy to do and with low risk.

 

Further down the line you can do things like hook up a relay to each computer system and then have that turn on the pump and fans while still isolating the two power systems.

[Mortis Angelus]

49 minutes ago, Lipe123 said:

I'd get a small 12v only power brick and wire the pump and fans on that and just switch it on manually.

 

You're not supposed to connect two PSU's together in any way, they might have small voltage differences and that will send power from one psu into the other and.. just don't.

 

Get a stock standard 12V psu like this: https://www.amazon.ca/SuperNight-Switching-Transformer-Wireless-Switches/dp/B0776TDRL8/

For fan control just put a old school variable resistor/potentiometer.

It wont be sexy but its easy to do and with low risk.

 

Further down the line you can do things like hook up a relay to each computer system and then have that turn on the pump and fans while still isolating the two power systems.

Thanks for the advice. Albeit I think you misunderstood the concept; I would be using one PSU for both systems. That is what those Phanteks components are designed for (and phanteks even have a similar board for combining two PSUs as well). 

 

The whole reason I ask about this is because I dont want to have a million different switches. Before pumps and fans were PWM controlled and were manually controlled, how did that work?

[Lipe123]

5 hours ago, Mortis Angelus said:

Thanks for the advice. Albeit I think you misunderstood the concept; I would be using one PSU for both systems. That is what those Phanteks components are designed for (and phanteks even have a similar board for combining two PSUs as well). 

 

The whole reason I ask about this is because I dont want to have a million different switches. Before pumps and fans were PWM controlled and were manually controlled, how did that work?

No I get it, you listed two different options. 1. The dual PSU with two outputs. 2. A splitter the converts one PSU into two.

 

The dual psu unit might not care if you connect its 12v lines together since it comes from one PCB anyways, kinda same with the splitter. 

Still if you have both computers on at the same time (worst case) you need to  plan the system around that scenario.

I can't imagine it's smart to hook the PWM connectors together of the two motherboards to control the fans and pump. 

 

That's why I suggested the easiest and safest way would be to have the cooling system separated completely with manual set and forget fan and pump speeds.