How do I set my DX level to 9.0+ (or just reset it)?

My DX level for GMod was originally 9.0+, today I had to start GMod with “-dxlevel 90” to fix a bug. Now that it is fixed, how can I put my DX level back to 9.0+ (or how do I reset the DX level)? On 9.0 it won’t support HDR, particle effects are messed up, and it runs slower, so I need it back at 9.0+. Thanks in advance.

Edit: Resolved: Tried -dxlevel 95 and it worked.