# INTELLIGENTUPDATE System Variable [GstarCAD 2021](Help%20System/GSTARCAD/2021/Index.md) → [System Variables](Help%20System/GSTARCAD/2021/System%20Variables/(System%20Variables).md) → [I](Help%20System/GSTARCAD/2021/System%20Variables/I/(I).md) ## Function Description: The INTELLIGENTUPDATE system variable is used to control the graphic refresh rate. | | | | --- | --- | | Type | Integer | | Saved in | Registry | | Initial value | 20 | The default value is 20 frames per second. If confronting some problems about generating drawings or timing, users could set it to be 0 to turn it off. The INTELLIGENTUPDATE system variable is used to stop drawings updating until timer expired. The timer will be reset in the subsequent update. --- ## Other versions with matching text [GstarCAD 2016](../../../2016/System%20Variables/I/INTELLIGENTUPDATE%20System%20Variable.md) · [GstarCAD 2017](Help%20System/GSTARCAD/2017/System%20Variables/I/INTELLIGENTUPDATE%20System%20Variable.md) · [GstarCAD 2018](Help%20System/GSTARCAD/2018/System%20Variables/I/INTELLIGENTUPDATE%20System%20Variable.md) · [GstarCAD 2019](Help%20System/GSTARCAD/2019/System%20Variables/I/INTELLIGENTUPDATE%20System%20Variable.md) · [GstarCAD 2020](Help%20System/GSTARCAD/2020/System%20Variables/I/INTELLIGENTUPDATE%20System%20Variable.md)