Windows Server 2008 R2 DataCenter RAM UPGRADE TO 144GB not all usable only 120GB usable

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hi all,

i have upgrade customer system 144gb ram .

bios showing 144gb ram when loaded windows server 2008r2 x64 datacenter edition .

it appear 120gb usable.

can advise me how resolve ?

ong

hello,


1. open resource monitor, how memory hardware reserved? might explain how other 24gb ram used.
2. motherboard have memory limitation? contact vendor more information , maybe update bios.
3. did upgrade system lower version datacenter version?

 

regards,

zhang     

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