On Thu, Jul 9, 2009 at 16:39, Jon LaBadie<[email protected]> wrote: > I've been running WinXP Pro as a guest os on two Linux hosts. > Recently I upgraded to VBox 3.0 and attempted to make the guests > recognize the dual core cpu's. > > On an Ubuntu 9.04 laptop with an Intel T7700 cpu, I simply made > the "2 cpu's" selection and when restarted the Windows task manager > showed the typical separate performance graphs for each core. > > On a Fedora 9 desktop with an AMD Athlon 64 X2 5600+ I tried the > same procedure and but the task manager still shows a single graph. > In the Windows system info and device manager the cpu is shown > correctly as a dual core model. But not the task manager. > > cpu-flags are suitable I believe: fpu vme de pse tsc msr pae mce cx8 apic > sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx > mmxext fxsr_opt rdtscp lm 3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm > extapic cr8_legacy 3dnowprefetch > > apic is enabled > > both systems are 64-bit capable, but I'm running all OS in 32-bit mode > > The Fedora system is running the PAE kernel in order to see all 4GB > of memory. > > Any ideas? > > Jon
This is an "issue" with Windows. The part of windows responsible for recognizing the dual core CPU is the HAL, and sometimes, during install, windows install a HAL that recognizes a dual core, others it can only recognize a single core. Around the web I've seen people talking about "replacing the HAL", but I've never bothered loooking on how to do it. Also, what you see on the control panel, is just Windows showing you whats is in the cpu info. Even if you had just one core enabled for the guest, the control panel would say to you that it was a dual core CPU (since it IS a dual core CPU). _______________________________________________ vbox-users mailing list [email protected] http://vbox.innotek.de/mailman/listinfo/vbox-users
