OptiPlex GX620 – Windows 7 32 Bit



It is not advised to spend too much money upgrading this over a decade 2007 system, as it is cheaper to purchase a more capable Second Hand Business Desktop than a new OS License. This PC can run Windows 7 32 Bit borderline. It does not run Windows 10 32 Bit very well.

System Upgrades

Service Manual

Dell Service Manual

Memory Upgrade:

This system supports 4 GB of RAM (2×2 GB Modules).

amazon.com Crucial CT2KIT25664AA800

amazon.co.uk Crucial CT2KIT25664AA800

Solid State Drive 3.5 “

Upgrading to a Solid State Drive

Legacy BIOS

OS Updates

System Utilities




See instructions on using the Microsoft Update Catalog and install drivers via the Device Manager.



2 thoughts on “OptiPlex GX620 – Windows 7 32 Bit

  1. hi, as i have upgraded the window 8.1 from window 7 everything is perfect in my system Dell optiplex GX620, but i can’t find the drivers for win 8.1 googled but couldn’t find audio/video drivers

    1. Use the drivers listed here, the Windows 7 82945 driver will work with Windows 8.1 and the audio driver should be inbuilt or can be obtained from the Microsoft update catalog.

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.