How To: Change the 'Maximum raster table creation size'
The default 'Maximum tables creation size' for rasters without previously built tables is 2048 (number of rows). You may find this number to be too small, and there is currently no mechanism in the interface to control this. You can, however, use the Advanced ArcMap Settings sample utility to control this setting.
Install the Advanced ArcMap Settings tool, if you have not already done so.