virtualbox.org

In my VBOX manager GUI I have successfully set-up and run both a Ubuntu 32 Lynx OS and an XP32 OS. In the settings for both there is a processor count slider under System>Processor. It is frozen at 1 CPU.

I have a multiprocessor system (2 dual core AMD Opteron on a Tyan S2885 board vintage 2005). While running native XP, Ubuntu, Windows 7, XP64 I have a physical CPU count of 2 and a logical count of 4. There is no setting for "supports visualization" in the (American Megatrends) BIOS. This BIOS is the most recent (and probably the last upgrade) available from the Tyan website.

Will I be unable to use my multiprocessor hardware capabilities when running VBox guests or is there a VBox configuration issue I am missing?

I did read the user manual but I am still unclear on this. After Google work I have found no solution.

PS: I am mostly a GUI Guy but I have used vboxmanage.

You need Virtualization enabled in Bios and the CPU must support this.

I think your Hardware from 2005 is too old for that.

Hardware from 2005 has no virtualisation support for sure. My PC is from 2006 and doesn't have AMD-V, so a computer that's older than that shouldn't have it at all.

Oh well. I have a legacy program, Autocad LT Release 2, that was written in 1995. It installs OK but the cursor in the drawing interface is slow and discontinuous. Running process explorer from the host shows that the cpu is maxed out.

Fortunately, I found a free alternative that's nearly as good - A9CAD.

But, curiously, it used to run OK way back when I had a 486 running Windows 95. Maybe I have some other setting wrong.