Unified Communication 6.1 on MCS 7816 - installation problem

Dear all
I have cisco unified communication 6.1 software & MCS 7816 . trying to instal call manager 6 on MCS 7816 but after media test (pass), it shows the error "this is not supported hardware" . I did not understand why because i have original MCS-7816-I3 server.
Does any one have any experiance ?
Thanks
I have cisco unified communication 6.1 software & MCS 7816 . trying to instal call manager 6 on MCS 7816 but after media test (pass), it shows the error "this is not supported hardware" . I did not understand why because i have original MCS-7816-I3 server.
Does any one have any experiance ?
Thanks
Comments
How much memory and disk space do you have? Do you meet the minimum requirements for the 6.x installation?
what can be the possibality?
Thanks...
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