Gigabyte A1840 Series User Manual page 19

3.
Replacing Hard Disk Drive: Loosen and remove the screws securing the motherboard metal cover.
Before installing remove or install the HDD, adhere to the following
cautions:
• Take note of the drive tray orientation before sliding it out.
10
• The tray will not fit back into the bay if inserted incorrectly.
Follow these instructions to install the hard disk drive:
1.Loosen and remove the screws securing the HDD bracket.
Recommend to upgrade the hard drive and memory by the
professional and technical person.
2.Loosen the four screws.