Which model number?
These Viking modules should work with your Asus P4T.
R2561816Z16NA0-40S_0225
R2561816Z16NA0-45S_0225
R2561816Z16NM0-45S_0225
R25618Z16N2-45MC18_0111
R2561616Z16NA0-40S_0225
Contact Asus for a definate answer.
Email: tsd@asus.com
Tel: 502-995-0883 (select option 3)
Fax: 502-933-8713
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