SQL Server 2000 Standard Memory Flatline

Hi all,



We have an SQL 2000 Standard SP4 system with 3gb of RAM running on Windows 2003 Server R2 Standard.



The SQL memory usage of this server flatlines at around 1665mb and will not go any higher.



I understand SQL 2000 Standard on Windows 2003 Server Standard has a 2gb memory limit, however why wont the memory push up to this limit? The OS shows there is around 700mb of the 3076 unused (SQL uses 1660, windows uses around 700 making the maximum used around 2300 of the 3076)



I have set the /3gb switch on windows boot, I have changed the SQL memory configurations many different times. If I try and set 'min server memory' to anything over around 1500mb I get the error on SQL startup;



Warning: unable to allocate 'min server memory' of 1720mb



In the above example surely if the Server has a 2gb limit it should let me set say 1720/2048 ? or 1920/2048 or even 2048/2048, however anything over around 1500 generates the above error.



Our server continues to flatline at 1660mb, any help to squeeze out an extra 200-400mb of RAM would be appreciated or an explination as to why it can not be done.



Thanks for your help

Jim