Re: TWGS frustration!

[rubywand@aol.com (RUBYWAND)]

In article <4mtajo$3ra@milo.vcn.bc.ca>, gareth@vcn.bc.ca (Gareth Jones)
writes:

>: It is beginning to look like my TWGS problems were heat-related. ....
>: c.  At home, I have a System Saver IIgs which sits on top of the CPU,
with
>: nothing on top of it...and the system ran fine with the TWGS for nearly
a
>: week before I shut it down.
>
>: Okay...any TWGS people out there who can tell me if I got it right? 
Any
>: suggestions for preventing future trouble?
>
>: --Dave Althoff, ][.

>
>It sounds right. Those c cards _can_ replace a furnace in the average 
>home ;-) Anyway, my solution was this: I supplement an Apple internal fan

>in my GS by placing two 4X4 blocks of wood on the IIgs: one along the 
>front and one along the back. The monitor goes on top of them. The extra 
>space between the computer and the monitor seems to improve the 
>ventilation. It also raises the monitor to a more comforatbel height for
me.


     The internal Apple IIgs fan will move air around a bit inside the
box. It is not much good for moving cool air in and hot air out.

     Raising the the hot monitor away from the top vents will improve
convection air movement. This usually works okay for a system with no hot
cards. 

     The best approach is something like Kensington's System Saver IIgs
which pulls air into back and side vents and out the top.     


In article <4mtdi5$7jm@Venus.mcs.com>, bird@MCS.COM (J. L. Walters)
writes:

>
>I'd go to Radio Shack and get a can of "Super Cool." (This is what
>they called it years ago when I bought it at Olsen Electronics for
>$2.69.)

     Olsen Electronics! That can of Super Cool is vintage stuff.

>My can says that it came with a plastic tube, al la WD 40, to
>better direct the output. I don't seem to have it anymore.

    A WD-40 tube will work.

>
>.... I think you want to run the unit until it crashes and
>then see what component(s), when sprayed with cool cause it to become
>good again.
>

     This could involve several Crash- Remove Lid- Squirt- Reboot- Replace
Lid sequences. To speed up the process Dave should include the Little
Finger Test. When there's a crash, Dave sticks his little finger on each
IC on the TransWarp card. An IC that scorches the finger is a prime
candidate for a squirt of Super Cool. 

     Knowing which IC is getting hot enough to cause a malfunction could
be worth the bother. A new, cooler-running version of the IC may be
available.

     It may be possible to attach a heat sink to the IC. For an IC on a
Slot card, a heat sink smeared with heat-conducting grease can be held
against the IC using a long nylon wire tie. If the sink has fins, they
should be oriented along the direction of air flow-- vertically for pure
convection cooling; horizontally if forced flow comes through the rear
vents.

     At the least, Dave will know where cool air has to go.


Rubywand