Install 2 motherboards inside a computer, any grounding issues with picopsu?

[mosco]

I have a Antec p183 with a i5-2500k, Corsair H50, p67 ATX Mobo and a Geforce GTX460.

I want to install a mini-itx AMD e350 into the same case so I can use the hard drive mounts to mount 3 hard drives connected to the AMD board. I have a 120W PicoPSU coming that will power the hard drives and the board.

I was planning on attaching the standoffs to the mini-itx board, and then epoxying them to another plastic board which is then securely attached via some heavy duty velcro onto the side panel.

Are there any issues I should potentially know about? Would there be any grounding issues? I don't think I have the grounding issues figured out.

Thanks.

 

[pcgeek11]

The standoffs are the grounding points for the motherboard along with the power connector black wires through the power supply. I would make sure the power supply is mounted metal to metal with the case and the standoff connections ( at least a few ) for the mother board are grounded to the case.

 

[mosco]

Well, its a picoPSU:

http://www.mini-box.com/s.nl/it.A/id.417/.f

So that's why I wasn't sure what the issues were. As far as I can tell, the standoffs are the only way to ground it to the case.

I also planned on attaching the DC input jack to a whole I make in the back of the case.

 

[Jimmah]

It should be fine if the ground on the DC jack is part of the port being connected to the case. If not, as per what pcgeek mentioned try to attach some standoffs to the case. If unable to do even that, get some short screws with nuts, wire and a terminal connector dealy and wire a few mounting holes with the nuts/screws/connectors then to the case. I did this on my smoothwall router and it works fine.

 

[mosco]

It looks like there is no ground at all on the DC jack. So I was thinking of just attaching wire's in between the standoffs and the board, and then attaching those wires to the case.

There are only 4 standoffs, so thats not a big deal.

 

[Sheepdisease]

What are the advantages of having two motherboards in the same case? I don't understand.

 

[mosco]

I am building an unraid server for 3 hard disks that are currently connected to my PC. I want to connect them to this mini-itx board but I don't want to have another case for this board and 3 hard drives. I have an antec p183 that already takes up a lot of room.

 

[mfenn]

It looks like there is no ground at all on the DC jack. So I was thinking of just attaching wire's in between the standoffs and the board, and then attaching those wires to the case.

There are only 4 standoffs, so thats not a big deal.

Yeah, you should be able to buy a grounding lug (examples) for the standoffs and connect that to true ground (i.e. metal in the case. You should only need to do one standoff since there is (supposed to be) a shared ground plane across the mobo.