Vostro 400 – Windows 7 64 Bit

It is not advised to spend too much money upgrading this over a decade 2008 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 64 Bit pretty well. It cannot run Windows 10 64 Bit but can run Windows 10 32 Bit.

System Upgrades

Service Manual

Service Manual

Memory Upgrade:

This system supports 8 GB of RAM (2×4 GB Modules)

amazon.com Crucial CT2KIT25664AA800

amazon.co.uk Crucial CT2KIT25664AA800

Solid State Drive 3.5 “

Upgrading to a Solid State Drive

Legacy BIOS

Windows 10

If you have previously bought a Windows 7 Retail or Windows 8.x Retail License then your key will work with Windows 10. If you were an early adopter and had activated your system with Windows 10 Insider Build 10130 you can clean install Windows 10 Pro without a Product Key.

I advise installing Windows 10 without a Product Key before buying a License which will give you time to evaluate it. With Windows 10 there is no trial, instead your Desktop and Settings will be watermarked and you will be unable to personalise some user settings but otherwise it’ll be fully functional. You can also activate Windows 10 with a Windows 7 Key or Windows 8.x Key.

OS Updates

System Utilities








* Taken from Czech Realtek Unofficial Driver website. See instructions for using the Realtek Unofficial Czech Website.

Card Reader

Dell Media Card Reader with Integrated Bluetooth Module (CAB-200), Media Card
Reader 19-1 with Integrated Bluetooth*



5 thoughts on “Vostro 400 – Windows 7 64 Bit

  1. I haven’t been able to confirm one way or the other that the Vostro 400 mobo G33M03 supports a 64bit OS. Can you please help me here? Thanks

  2. I have installed a 64bit version of windows 7 on a vostro 400 G33M03, Q9550.
    Currently attempting to install windows 10 64 but stalls at the first splash display.
    It moves on with the 3w bit version with no problems.. but am not interested in 32 bit OS installs.
    Any idea how to move forward on a successful setup?

    1. There are some issues with Windows 10 Version 1803/1809 that have been addressed. I had an issue with the Realtek Audio on my Latitude 7350 causing it to freeze on the first boot. It has been resolved in Windows 10 Insider Preview Build 18343. 18343 needs updated to 18453 before installation of drivers to prevent a freeze. I know nVidia cards have also been problematic with Windows 10, does your system have one?

      In any case can you try Windows 10 Version 1903 Insider Preview to see if you get stuck on the same screen?

      1. After a bit more digging around there seems to be a problem with the G33M03 motherboard that does not support CompareExchange128, a key component or requirement of Windows 10/8.1 64bit the 32 bit versions dont require that instruction set so it will work but at this age 32 bit os will no longer be supported.. what a bummer! I appreciate the time you took to reply!

        And for anyone else, it may be time for a newer PC..

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