Bryansky,

Target Server Memory (KB) - Total amount of dynamic memory the server can consume.

Total Server Memory (KB) - The committed memory from the buffer pool (in kilobytes)

When both value is the same, it indicates that your sql is probably not being stressed too much since the amount of memory sql needs and memory available to sql is the same. If you google up the above, you'll probably get a better definition of what the counter stands for.

max server memory (MB) 4 2147483647 2147483647 2147483647

Based on your QA sp_configure, it means that your sql is configured to use as much memory as it could obtain, in this case is only 2GB max since its a SQL Standard edition.

If you check the memory allocation via EM, the slider is at 4095MB because the max memory value is set to 2147483647 which the slider indicates you've not fixed sql server memory usage and nothing more. If you try to fix sql to consume 2.5GB of memory, you'll see an entry in the error log stating sql cant allocate 2.5GB and via perfmon, you'll still be looking at ~1.6GB memory.

Hope this shed some lights to your question.

Regards,

Simon