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Can 64bit VM use memory above 4Gb in 32bit guest?

Posted: 8. May 2009, 16:39
by vfclists
This question may be rather hopeful, can 64bit VM use memory above 4Gb in 32bit host?

I am running Windows on 32bit XP and wonder if with more than 4Gb memory install the VM can magically use memory above the 4Gb limit so I can run four 1Gb vms plus the regular host as well.

/vfclists

Re: Can 64bit VM use memory above 4Gb in 32bit guest?

Posted: 9. May 2009, 01:26
by coolbiker
You can't run a 64bit os on a 32bit host period.

Re: Can 64bit VM use memory above 4Gb in 32bit guest?

Posted: 9. May 2009, 14:34
by vbox4me2
2.2.2 Manual:
1.6 64-bit guests
Starting with Version 2.0, VirtualBox also supports 64-bit guest operating systems.
Starting with Version 2.1, you can even run 64-bit guests on a 32-bit host operating
system, so long as you have suf?cient hardware.
Read the rest of the manual what you need to get this to work.

Re: Can 64bit VM use memory above 4Gb in 32bit guest?

Posted: 10. May 2009, 00:57
by TerryE
Replying to the actual Q:
vfclists wrote:I am running Windows on 32bit XP and wonder if with more than 4Gb memory install the VM can magically use memory above the 4Gb limit so I can run four 1Gb vms plus the regular host as well.
No. VBox is limited to what the host OS can map which constrains the total VMs and also what the host OS allows for an individual process which is all a VM is in the host OS, so this remains magic and an unfulfilled wish.