4GB Ram in Windows 2003 Ent show 3.25G

[littlepig_1]

Hi,
I have a HP Proliant DL 380 G5 server and we installed 4GB ram and Windows 2003 Ent, in the bios, we can see 4096M ram show but in the OS, it show only 3.25G, is there any setting I missing in the hardware which restrict the memory in OS?

Thanks

[KarloChacon · Accepted solution]

that is a known issue
in fact there is a customer advisory

Certain Operating Systems May Not Report All Installed Memory for HP ProLiant Servers with 4 GB or Greater of Memory if PAE Mode Is Not Enabled

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00883105〈=en&cc=us&taskId=101&prodSeriesId=1121516&prodTypeId=15351

regards