PixelDepthOffset broken

I installed PhotorealisticCharacter but Twinblast’s hair was broken like this

I found PixelDepthOffset caused this.
so I created some simple materials.

With shader model 4, everything works well.
Pixel inspector says black parts are unlit,normal(-1,-1,-1) ,
the same material as background.

Laptop Windows 10 core i5 HDgraphics

HLSL code says Pixel depth offset use DX11 feature Conservative depth writes when render level is SM5.
HDgraphics 4000 cannot deal with the command properly ?