[rescue] quad 486

[Chad Fernandez]

jwbirdsa at picarefy.com wrote:
>    I recently revived a dual 486 Compaq Systempro. Each processor is on its
> own daughterboard and it certainly looks like the daughterboards include
> cache. Sadly, the boards aren't spaced quite far apart enough to get a
> Kingston K5 upgrade on the second one, so it's running asymmetrical right
> now, with a K5 on the primary board and a 486DX2/66 on the secondary. (There
> isn't enough room for a 486DX4/100, either -- same problem as the K5, both
> include a PCB, processor, heatsink, and fan, which makes them very tall.)
> I was very surprised to discover that NT4, which didn't come out until well
> after this machine was obsolete, includes a HAL for it out of the box.
> (Yeah, I know, but I need Windows for the purposes that this box is
> intended to serve.)

I have a Kingston Turbo chip that's based on the AMD processor.  It had 
a fan mounted directly to the chip on the PCB.  I pulled it off and put 
on my own heat sink.  Maybe you could pull the fan off and install a fan 
to blow air between the cards?  If a standard heat sink is still to tall 
maybe you could attach a flat piece of aluminum to the processor that is 
almost as big as the daughter board, that should surely draw the heat 
away.  Use a piece that's think enough to not flex easily, and glue it 
on to the processor with super glue around the edges and heat sink 
compound in the middle.

Chad Fernandez
Michigan, USA