| Author |
Message |
Bertil Rogmark
Guest
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 Posted:
Mon Sep 19, 2005 12:10 pm Post subject:
Memory limitations |
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I am running Proe on Windows 2K.
I am working with large assemblies that very easily chew up all my RAM which
currently is 1,5 Gb.
I have not installed any more because I have been told that Windows 2K
cannot handle more RAM than 1,5 Gb.
I have also heard that Windows XP Pro can handle 4 Gb.
Can anybody confirm that this is so, i.e. if I switch to XP Pro and install
4 Gb, Proe can put this to full use?
Grateful for any input
Bertil
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Ben Loosli
Guest
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| Posted:
Tue Sep 20, 2005 12:10 am Post subject:
Re: Memory limitations |
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Not true.
Win 2K and Win XP are both 32bit os's which means they can both address 4GB
of ram.
The limitation is in the way Pro/E uses the ram and what other programs you
have running.
I have a Win2K and a WinXPpro at work, both with 2GB of ram. Pro/E will
crash on both machines when memory used by the xtop.exe application reaches
1.4-1.6GB.
Win XP64bit is another story, but it requires a system that is 64bit
enabled. If your machine is running Win2K, then I doubt it is 64bit enabled.
--
Ben Loosli
"Bertil Rogmark" <bertil@rogmark.com> wrote in message
news:pruXe.34129$d5.189457@newsb.telia.net...
| Quote: | I am running Proe on Windows 2K.
I am working with large assemblies that very easily chew up all my RAM
which
currently is 1,5 Gb.
I have not installed any more because I have been told that Windows 2K
cannot handle more RAM than 1,5 Gb.
I have also heard that Windows XP Pro can handle 4 Gb.
Can anybody confirm that this is so, i.e. if I switch to XP Pro and
install
4 Gb, Proe can put this to full use?
Grateful for any input
Bertil
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David Janes
Guest
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| Posted:
Tue Sep 20, 2005 7:09 am Post subject:
Re: Memory limitations |
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This seems like a good overview, with some particulars.
http://www.rsinc.com/services/techtip.asp?ttid=3346
They seem to say that xp and win2k have the same addressable memory limits.
Anyway, why not install more ram: if it doesn't work on win2k, then switch to xp
or Linux. I'm running Pro/e on win2k with 3gs of memory, over a thousand part
assemblies, 3gs fixed the previous crapping out problem when the workstations had
only 1g of memory. Haven't reached the limit yet, haven't frozen, haven't died.
Like the Energizer Bunny, just keeps on going.
--
David Janes
"Bertil Rogmark" <bertil@rogmark.com> wrote
| Quote: | I am running Proe on Windows 2K.
I am working with large assemblies that very easily chew up all my RAM which
currently is 1,5 Gb.
I have not installed any more because I have been told that Windows 2K
cannot handle more RAM than 1,5 Gb.
I have also heard that Windows XP Pro can handle 4 Gb.
Can anybody confirm that this is so, i.e. if I switch to XP Pro and install
4 Gb, Proe can put this to full use?
Grateful for any input
Bertil
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Bertil Rogmark
Guest
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| Posted:
Tue Sep 20, 2005 8:10 am Post subject:
Re: Memory limitations |
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Ben and David,
thanks to both of you.
I think I am getting to understnad at least some of the problem.
My experience with crashes are the same as Ben's even after having installed
3 Gb. I wonder what good David has done in his life to be spared this.
David's link is quite informative - as I read it, all memory above 2Gb is
reserved for the OS but subject to change.
However, I have also found out that there is a Microsoft recipe to increase
the memory-per-process by increasing the allocatable memory from 2 Gb to 3
Gb. It is about adding a switch "/3GB" to the boot.ini file for WINXP.
The thing is referred to in another context in the link below:
http://support.microsoft.com/default.aspx?scid=kb;en-us;Q319043
I am trying to find out exactly how it is done and if it also applies to
Win2K.
Does one of you know how Proe behaves in an XP64 environment with RAM >>
4Gb?
Bertil |
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Ben Loosli
Guest
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| Posted:
Tue Sep 20, 2005 12:10 pm Post subject:
Re: Memory limitations |
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The /3GB switch is only in Win XP. It also takes some memory from the AGP
graphics area, so there is a trade off.
Our corporate design center in India just installed some new Dell
workstations with 64bit CPU's and Win XP64bit. There machines have 4GB of
RAM. I haven't heard how they perform yet.
--
Ben Loosli
"Bertil Rogmark" <bertil@rogmark.com> wrote in message
news:aKNXe.146660$dP1.503408@newsc.telia.net...
| Quote: | Ben and David,
thanks to both of you.
I think I am getting to understnad at least some of the problem.
My experience with crashes are the same as Ben's even after having
installed
3 Gb. I wonder what good David has done in his life to be spared this.
David's link is quite informative - as I read it, all memory above 2Gb is
reserved for the OS but subject to change.
However, I have also found out that there is a Microsoft recipe to
increase
the memory-per-process by increasing the allocatable memory from 2 Gb to 3
Gb. It is about adding a switch "/3GB" to the boot.ini file for WINXP.
The thing is referred to in another context in the link below:
http://support.microsoft.com/default.aspx?scid=kb;en-us;Q319043
I am trying to find out exactly how it is done and if it also applies to
Win2K.
Does one of you know how Proe behaves in an XP64 environment with RAM
4Gb?
Bertil
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Viper
Guest
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| Posted:
Tue Sep 20, 2005 4:10 pm Post subject:
Re: Memory limitations |
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Our IT guru said the 3GB switch in the boot.ini file also works in
Win2K but suggest adding it like this at the end of the last line in
the boot.ini:
/3GB /USERVA=2900
Try it and see if that doesn't help - it sure did for us! |
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David Janes
Guest
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| Posted:
Wed Sep 21, 2005 5:20 am Post subject:
Re: Memory limitations |
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http://support.microsoft.com/?kbid=316739#appliesto
This is a nice explanation but it seems to imply that the setting only applies to
Windows Server 2003. It also mentions XP and NT Server Enterprise Edition. Don't
know, technically, how it works, but seems to be saying that memory is taken from
programs by this switch and given to kernel. I suppose if programs are gobbling up
all the memory and starving the kernel, this could be a good thing.
David Janes
"Viper" <blanchardba@ornl.gov> wrote in message
news:1127230329.024980.245910@f14g2000cwb.googlegroups.com...
| Quote: | Our IT guru said the 3GB switch in the boot.ini file also works in
Win2K but suggest adding it like this at the end of the last line in
the boot.ini:
/3GB /USERVA=2900
Try it and see if that doesn't help - it sure did for us!
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