Download Center for FPGAs

This version of ModelSim-Altera Edition for Quartus II software will no longer be available after 6/26/2020. This version does not include the latest functional and security updates and will not be supported. All versions are provided as is. Intel recommends that users of this version uninstall and discontinue use as soon as possible. Users should upgrade to the latest available software version for their device and follow the technical recommendations to help improve security.

ModelSim-Altera Software

Release date: November, 2009

ModelSim-Altera 6.5b Software for Quartus II Software Version 9.1

Select a previous version of Quartus II:

Download Option 1: Individual Files

ModelSim-Altera Edition Platform File Name Size
v6.5b Software Download for Quartus II v9.1Windows 91_modelsim_ae_windows.exe

573 MB
v6.5b Service Pack 2 for Quartus II v9.1Windows 91sp2_modelsim_ae_windows.exe

574 MB
v6.5b Service Pack 1 for Quartus II v9.1Windows 91sp1_modelsim_ae_windows.exe

574 MB
v6.5b Software Download for Quartus II v9.1Linux 91_modelsim_ae_linux.tar

578 MB
v6.5b Service Pack 2 for Quartus II v9.1Linux 91sp2_modelsim_ae_linux.tar

539 MB
v6.5b Service Pack 1 for Quartus II v9.1Linux 91sp1_modelsim_ae_linux.tar

539 MB

What the MD5 sum value is and what it is for

Other Individual Download Files:

Service Packs: Quartus II

  • ModelSim-Altera Edition v6.5b
    Requires Quartus II v9.1 Service Pack 2
  • ModelSim-Altera Edition v6.5b
    Requires Quartus II v9.1 Service Pack 1
  • System Requirements

    Requirement Type
    Operating System

    Windows Vista (32 bits)
    Windows XP (32 bits)
    Red Hat Enterprise Linux 4 (32 bits)
    Red Hat Enterprise Linux 5 (32 bits)
    SUSE Linux Enterprise 9 (32 bits)
    SUSE Linux Enterprise 10 (32 bits)

    Download Notes

    1. Installation Instructions: View Installation Instructions for all operating systems.
    2. Support: The Quartus II Software Support web page can help with questions or problems that are not answered by the information provided here or in Quartus II Help. If you have a question or problem that is not answered by the information provided through these resources, contact Altera Applications through the mySupport website.
    3. Legal Notice: The Altera Software Subscription License Agreement governs the installation and use of this software.