With VMWare it works fine and I can run multiple cores on a VMWare image. With VirtualBox I can only run 1 CPU on a image. Its annoying.
Why does Virtualbox not work the same as VMware in this respect?
My CPU is:
XEON 3.00GHz Intel 90nm 2MBCache QUAD CPU x14 Socket 604 mPGA Family 15 Model 4(04) Stepping 3 Revision 05 MMX SSE3 XD
SIV.exe tells me:
No virtual machine extensions x86 with 64-bit support NO IA64 support MPS but with NO MCP 2 physical processors, 2 cores, 4 logical processors
I tried manually setting my # of CPU's and it causes this error which I cannot reverse without restarting my whole computer.
C:\Program Files\Sun\VirtualBox>VBoxManage modifyvm XPSP3 --cpus 2 Sun VirtualBox Command Line Management Interface Version 3.1.4 (C) 2005-2010 Sun Microsystems, Inc. All rights reserved.