ASROCK M8 Use Manual page 27

2. Take apart the drive tray assembly.
1
Remove the screws that secure the bottom HDD tray with the top tray.
Take the assembly apart.
3. Install a 3.5" HDD or up to four 2.5" HDD.
Installing a 3.5-Inch Hard Drive:
1
Set the top tray aside.
Place a 3.5" HDD to the bottom HDD tray with the printed circuit board side facing
down. Carefully align the mounting holes in the hard drive and the tray.
Secure the hard drive using the three screws (three on the sides).
1
1
1
or
M8
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