Windows XP should automatically update to the MultiProcessor HAL when it sees a CPU change, however sometimes you need to force it.
Information on the HAL and also how to modify it can be found here http://support.microsoft.com/kb/309283/ also if you browse some of the VMWare communities you will see this issue + solutions mentioned many times. Always do this on a clone of your machine, sometimes the upgrade goes wrong and then you have a dead machine. - James Quoting Daniel Hauck <[email protected]>: > (2009å¹´07æ10æ¥ 16:41), Jon LaBadie ããã¯æ¸ãã¾ãã: > > Antonio Augusto (Mancha) wrote: > >> 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. > >> > > Thanks Antonio, I think you identified the problem. > > > > The hal.dll installed on my guest system does appear to be the version > > suitable only for a single cpu. I tried replacing it with a "mp" > > (multi-processor) version, but I think I got a kernel/hal version > > mismatch. I'll play with it later. > > > > Jon > > You will probably find it easier, and more efficient, to just go ahead > and build a new Windows VM. Windows likes to be reloaded fresh and > really doesn't like being tweaked and hacked on to get the results you > seek. If you build a new machine on a new virtual drive and then > mounted the old virtual drive, you can actually move a lot of the data > or anything else you might need. I expect you will see the dual core > HAL doing its thing and all after that. > > I have the same problem and my intended resolution will include just > building a new VM. > > _______________________________________________ > vbox-users mailing list > [email protected] > http://vbox.innotek.de/mailman/listinfo/vbox-users > -- UTS CRICOS Provider Code: 00099F DISCLAIMER: This email message and any accompanying attachments may contain confidential information. If you are not the intended recipient, do not read, use, disseminate, distribute or copy this message or attachments. If you have received this message in error, please notify the sender immediately and delete this message. Any views expressed in this message are those of the individual sender, except where the sender expressly, and with authority, states them to be the views the University of Technology, Sydney. Before opening any attachments, please check them for viruses and defects. _______________________________________________ vbox-users mailing list [email protected] http://vbox.innotek.de/mailman/listinfo/vbox-users
