Officially according to the RealSense specifications, a Xeon processor should not work with the camera. Unofficially they do defy the specification and work sometimes. The chances of it working though depend on the V number of the processor. A V5 Xeon with a 'Broadwell E' type chip architecture has a 50% chance of working with an SR300. With a V3 like the one you have though, I have only known one case where this camera has worked with this processor, unfortunately.
The V3 has a 'Haswell' type 4th generation processor architecture from 2014. This means that the older R200 camera model should work with it, since its minimum specification is also 4th generation Haswell. A newer SR300 model though has a minimum specification of 6th generation Skylake processor.
