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Booting Multiple Boards in series?

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nixscripter

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Joined
May 10, 2008
Location
Midwest USA
I have a multi-machine cluster, and I am building a custom housing for it. What I would really like is to include a custom switch, and press once to boot them all. All of the motherboards are ATX.

Three questions, which I hope are simple:

1. Can I just wire up the power pins in series, i.e. switch to hot to cold to hot to cold to switch?
2. Are there other risks of having the ground pins of the power switches interconnected? I would add that the PSUs of all machines will be grounded to the same circuit.
3. Should the power switch be momentary or latching? Based on computers I have used I would guess momentary, but I can't be sure, and Wikipedia doesn't say.
 
OP
nixscripter

nixscripter

Registered
Joined
May 10, 2008
Location
Midwest USA
Thanks for the tip. I will look into it. But I have heard that some motherboard manufacturers support it better than others, and this hardware isn't the newest.

In the mean time, any answers to my prior questions?
 
OP
nixscripter

nixscripter

Registered
Joined
May 10, 2008
Location
Midwest USA
So that would be parallel, not series. Reading the standard, I guess I see that: one is +5V the other is just ground.

Thanks.