HP LaserJet Enterprise M604, M605, M606 - Removal and replacement: Dual in-line memory module (DIMM)

1. Grasp the handle on the formatter cover (callout 1), and then slide the cover toward the rear of the printer to remove it.
   Figure : Remove the formatter cover
   
2. Open the formatter case door.
   Figure : Open the formatter case door
   

note:

If the optional HDD is not installed, skip this step and go to Step 3: Remove the memory DIMM.

1. Locate the hard-disk drive (HDD) on the formatter.
   Figure : Locate the hard-disk drive
   
2. Release one tab (callout 1), grasp the HDD mounting bracket, and then rotate the connector end of the bracket up (callout 2) and away from the formatter to release it.
   Figure : Release the HDD
   
3. Slide the HDD toward the front of the printer (callout 1) to release one tab (callout 2) from the slot (callout 3) in the formatter case, and then remove the HDD.
   Figure : Remove HDD
   

1. Locate the memory DIMM installed on the formatter.
   Figure : Locate the DIMM
   
2. Pull the DIMM straight off of the formatter to remove it.
   Figure : Remove the DIMM
   

  caution:

This part contains components that are electrostatic discharge (ESD) sensitive. To reduce the possibility of ESD damage, always touch the sheet-metal chassis to ground yourself before touching an ESD-sensitive part.

note:

HP recommends responsible disposal of the defective part.

1. Note that the DIMM connector (callout 1) is keyed, and can only be installed in one direction in the formatter connector (callout 2).
   Figure : DIMM connector
   
2. Align the connector on the DIMM with the connector on the formatter, and then push the DIMM onto the formatter to install it. Verify that the DIMM is fully seated in the connector.
   Figure : Install the DIMM
   

note:

If the optional HDD was not removed, skip this step and go to Step 7: Install the formatter cover.

1. Install the tab (callout 1) on the HDD bracket into the slot (callout 2) on the formatter case, and then slide the HDD toward the back of the printer (callout 3).

   note:

   If this is the first time the HDD is being installed, remove the pre-scored label that covers the slot in the chassis (callout 2).

   Figure : Install the tab
   
2. Rotate the HDD down toward the formatter and press down. Make sure that the retainer tab (callout 1) latches into the hole (callout 2) on the formatter, and that the connector latch (callout 3) snaps into the connector (callout 4).
   Figure : Install the HDD
   
3. Verify that the HDD is fully seated in the connector (callout 1) and that the retainer tab (callout 2) is latched.
   Figure : Verify HDD installation
   

1. Close the formatter case door.
   Figure : Close the formatter case door
   
2. Align the tabs (callout 1) on the formatter cover with the slots (callout 2) in the right cover, and then slide the formatter cover toward the front of the printer to install it.
   Figure : Align the tabs and slots