Hey there, just made an interesting observation and was wondering if that could be of relevance to your product too.
When I set up my meanwell rps-200 with a load switch for the 4-pin CPU header, I was quite surprised when I saw that my system actually started up without the load switch being switched on.
When I thought about it, it actually made sense. The load switch consists of a NPN mosfet, so it just passes through the 12 V line and switches on the ground line. Maybe this is also motherboard specific but it appeared that the CPU ground is internally connected to the 24-pin ATX ground on the motherboard. So the load switch ends up just adding another ground for the CPU.
Do you also see this problem with the distro 400 or are you switching loads another way?
Cheers!
When I set up my meanwell rps-200 with a load switch for the 4-pin CPU header, I was quite surprised when I saw that my system actually started up without the load switch being switched on.
When I thought about it, it actually made sense. The load switch consists of a NPN mosfet, so it just passes through the 12 V line and switches on the ground line. Maybe this is also motherboard specific but it appeared that the CPU ground is internally connected to the 24-pin ATX ground on the motherboard. So the load switch ends up just adding another ground for the CPU.
Do you also see this problem with the distro 400 or are you switching loads another way?
Cheers!