Disable file management software or test drawings outside of the software to verify this is not slowing down AutoCAD.
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Turn off silhouette edges using the DISPSILH (System Variable).Set CACHEMAXFILES back to 256 after AutoCAD restarts.Type CACHEMAXFILES at the command prompt.Invoke the CACHEMAXFILES (System Variable) to clear the AutoCAD graphics cache: Performance issues with drawings containing complex geometry such as 3D solids, non-mesh surfaces, and regions."N" when asked to verify each name to be purged, then Enter.Type "*", press ENTER (the asterisk equates to All)."R" for Regapps (registered applications), press ENTER.Purge Registered Applications (from the command line):.Type "*" (asterisk), press ENTER (the asterisk equates to All).Remove unused named objects from the drawing:.Type "Y" for Yes to fix any errors, then Enter.To repair a drawing file and remove unreferenced objects For more information see About Repairing Damaged Drawing Files Before importing content such as blocks or from existing drawing files, check the drawing for database errors using the AUDIT (Command) and remove unnecessary (unreferenced) objects using the PURGE (Command). Have all available updates * for AutoCAD been installed? Updates can be installed from the Autodesk Account or by checking the Autodesk Desktop App.ĭrawing performance may be related to file corruption or file bloat due to excessive unused entries in the drawing database.Does the computer meet the System Requirements for AutoCAD?.General troubleshooting Verify the System Requirements and that AutoCAD Updates are installed. If one solution does not improve performance, proceed to the next strategy: Try the solutions in the categories in order, testing AutoCAD each time. If the network has been eliminated as a cause - go to the Hardware and System solutions.Are the files on a network Server - begin with the Network solutions.Are the files on the local machine - begin with the Hardware and System solutions.If the issue occurs with any drawing file::.If necessary follow-up with the Hardware and System solutions If the problem only occurs with specific drawing files, begin with File Troubleshooting.If additional troubleshooting is necessary review the scenarios: Solution: Begin with the General Troubleshooting section. Drawing tries to connect to a network file i.e., external reference, drawing standard, etc., which cannot be opened or found.Slow Internet connection, when working from remote.File is stored in an unsupported working location or in a folder that is syncing to one.Non-specific issues caused by docking stations (when using laptop computers).Monitors chained together via USB connection.Dual graphics systems not using or utilizing higher end graphics card.Graphics settings may not be compatible with a remote system.
A graphics card is not certified or is malfunctioning.This includes amount of RAM, type of graphics card (GPU), and the central processing unit (CPU) in the machine. Computer specifications do not meet the criteria outlined in the System Requirements for the version of AutoCAD in use.The components are placed with high coordinates (thumb rule: > 100.000).A file has saved a lot of unneeded named objects, including blocks and registered apps.A file has unresolved external references.
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