Re: towerized IIgs

[rubywand@swbell.net]

Michael Hackett writes ...
> 
> rubywand@swbell.net wrote:
> >      One improvement would be to mount the GS motherboard so that the
> > Slot cards run up-down instead of front-to-back. This should eliminate
> > the dust problem and it would greatly reduce the stress on the card's
> > connection to its Slot socket.
> 
> Yes, that was my original intention, but the motherboard ended up not
> fitting in my case that way. You also have to make or get cable to run
> all of the ports to the back, unless you want to open up the case
> everytime you want to plug in or unplug something. I was prepared to
> do that until other problems came up. I decided instead to remove the
> card cage and cut out the small piece between the card area the
> keyboard plug hole. The GS ports fit perfectly in that space. Now I
> just need to get a piece of metal to cover the bit hole above the ports.
> (Currently, I've just got a filter in there, which allows better airflow,
> but probably lets out too much EMI.)


     If card popping is a problem and up-down mounting is not an option, 
you could use plastic card guides to hold troublesome boards in place. The 
guide could be end-mounted to the back panel. It would stick out and sit on 
top of the board. If you wanted to remove the board, you would need to just 
loosen the bolt holding the guide. The card guide mounting hole could be 
slotted to accommodate different board sizes.

     As for EMI in the RF range, a hole in the back is not likely to matter 
much. Radiation from your monitor plus computer and monitor power cords 
plus monitor, joystick, mouse, and keyboard cables is going to pretty much 
swamp anything leaking from the case. 

  
Rubywand