Question : Performance monitor explained

I'm looking for a good site to explain the basic performace monitors for server 2003. I need the link to proivde specific detail such as the levels that each counter should not go above. Its for the 293 Microsoft exam, most of the question give the basic counters info and you have to identify the bottleneck, eg ram, cpu, disk etc.

Answer : Performance monitor explained

Have a look at this site:
http://www.computerperformance.co.uk/HealthCheck/GettingStarted.htm

The first page is basic, but if you scroll down you will find links to advanced info that focusses especially on detecting bottlenecks in these areas:
Memory
Processor
Disk
Network
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Windows Network Monitor
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