Slow response accessing Exchange

I am having various problems with my outlook clients accessing exchange 2000. I am running EX 2k on an Windows 2000 standard server. The server has 4 gig of ram. Sometimes it takes a few minutes for users to open outlook then everything works ok. Other times they get a message that says the client is trying to contact the exchange server. I have noticed sometimes I get events that talk about virtual fragmentation.
bsivleyAsked:
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SembeeCommented:
If they are getting the pop up message about delays connecting - what address is indicated? If it is the Exhcange server then the delay is talking to the Exchange server. If the address is of a domain controller then it is the global catalog is where the bottleneck is.

Simon.
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bsivleyAuthor Commented:
The popup says "outlook is trying to connect to the "exchange Server"  Then any where from 10 seconds to a minute everything is ok. This does not happen very much. I am also gettin virtual memeory fragmentation errors  MSEXCHANGEIS  9582
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SembeeCommented:
Windows 2000 standard with 4gb of RAM?
I know this is going to sound funny, but I think you have too much RAM.

Exchange needs a special switch to be able to manage more than 3gb RAM - it is called the /3gb switch. Except the switch is only supported by Windows 2000 Advanced Server.
If you take the machine down to 2gb RAM the virtual memory errors will go away and the machine will probably behave itself.

How many users and what size db is this machine supporting?

Simon.
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bsivleyAuthor Commented:
I thought that might be a problem. I have about 200 users on this server. I had been thinking of upgrading to 2003 Enterprise server, but for the cost I may just remove the 2 gig. I will be upgrading to Exchange 2003 soon and I do not want any problems. I will try to remove the memory and see what happens.

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SembeeCommented:
If you go up to Windows 2003 server it supports the 3gb switch in standard edition. You will just need Exchange 2003 Enterprise.

Simon.
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bsivleyAuthor Commented:
I now have 2000 Standard Server with 2000 Exchange Enterprise Server. Could that be a problem?  Will I still be ok for now removing 2 gig until I can upgrade?
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SembeeCommented:
That should be fine. I have a couple of clients with that combination with no problems.

I think removing 2gb RAM is a good short term solution. When you upgrade you can put it back in and do the /3gb switch (there is a KB article about it).

Simon.
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