Compaq Armada 7800 Reference Manual page 105

Inserting a Diskette into the Diskette Drive
Hold the diskette by the edge that contains the label. Insert the
diskette, label facing up, into the diskette drive until it clicks into
place.
If the diskette is inserted correctly, it drops into position in the
diskette drive and the diskette drive button pops out.
Working with Removable Drives 6-21