[rescue] Missing chip on SS20?

[Kurt Mosiejczuk]

Warning, the following picture is blurry (it didn't look bad
on the little LCD, sorry):

http://www.csh.rit.edu/~kurt/haul-pictures/missing_chip.jpg

This is a picture of a Sparc 20 motherboard in the ebay auction
lot.  On the other 20 without CPUs, there is a heat sink where
the little silver square is (the silver square is a grid of
8x8 little holes).

Is this SS20 toast?  Did someone rip a vital component off?
Or is it to absorb heat from the CPU placed above it?

Thanks for any thoughts or info on this one.

--Kurt