I am pretty sure the FPU is soldered from underneath, if you look closer you see pins through the holes.

or… maybe not… lol

here is LEM's list of LC Video cards,

I noticed nothing from e-Machines.

http://lowendmac.com/video/lc/

Envisio Quick16

Focus L*TV LC

Focus L*TV Pro LC

Focus L*TV Pro/E LC

Radius Color Pivot LC

RasterOps ColorVue 8LC

RasterOps ColorVue LC

RasterOps ColorVue GSLC

maybe it was a card they did, and never made it to market.