[SOLVED] Manually booting PSU that feeds GPUs before booting the system, will it work?

[Bill_killernic]

Hi so I am building a mining rig and , I use 2 PSUs
PSU1: feeds all the system (motherboard etc + some GPUs)
PSU2: Only feeds some extra GPUs
Unfortunately I couldnt find any PSU dual boot sync pcb readily available where I live so I ordered one from china but this means I have to wait for a long time...
In the meantime cant I just short the PSU2 that feeds only the GPUs (I know how to do that no need to help on that thanks) and then after that boot the system which is fed by PSU 1 ?
Or will this cause problems?

 

[Tfo052]

2 PSU's might work but it would be very sketchy and may break something. If you really need to use 2 I would recommend you buy a cable like this 24-pin To Dual 24-pin ATX Power Supply Connector Splitter Dual-PSU ATX adapter - Newegg.com for a better chance of it working because with this they both turn on at the same time.

 

[jay32267]

Hi so I am building a mining rig and , I use 2 PSUs
PSU1: feeds all the system (motherboard etc + some GPUs)
PSU2: Only feeds some extra GPUs
Unfortunately I couldnt find any PSU dual boot sync pcb readily available where I live so I ordered one from china but this means I have to wait for a long time...
In the meantime cant I just short the PSU2 that feeds only the GPUs (I know how to do that no need to help on that thanks) and then after that boot the system which is fed by PSU 1 ?
Or will this cause problems?

This is an interesting question.
I don't think it will hurt anything....as far as damage hardware.
I think it probably will work.
I can't think of a reason why it would not work.

Edit:...make sure your 0V on both PSUs are tied together