Dell Inspiron 630m, 640m Memory Installation Guide.
Your Dell computer comes equipped with two memory slots/connectors labeled DIMM A and DIMM B. DIMM A (located under the keyboard) holds the primary memory module as configured from the factory. DIMM B (located on the bottom of the computer) holds any additional memory you may have ordered. If you did not order additional memory, DIMM B will be empty.
Generally, if you are adding memory, you will install a memory module in DIMM B only. If you are upgrading the memory, you may need to install memory modules in DIMM A and DIMM B, depending on the extent of the upgrade.
CAUTION: Before you perform any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTICE: To avoid electrostatic discharge, ground yourself by using a wrist grounding strap or by periodically touching an unpainted metal surface (such as the back panel) on the computer.
Memory Module DIMM B1. Follow the instructions in
General Safety Guidelines for Working with Notebook Computers. 2. Loosen the two captive screws securing the memory module cover, then remove the cover and set it aside. Remove memory module if installed.
NOTICE: To prevent damage to the memory module connector, do not use tools of any kind to spread the metal clips that secure the module.
3. Install the new memory module:
a. Align the notch in the memory module edge connector with the tab in the connector slot.
b. Slide the module firmly into the slot at a 45-degree angle, and then rotate the module down until it clicks into place. If you do not feel the click, remove the module and reinstall it.
NOTICE: If the memory module cover is difficult to close, remove the memory module and reinstall it. Forcing the cover to close may damage your computer.
4. Replace the memory module cover and tighten the screws.
Memory Module DIMM A
1. Follow the instructions in General Safety Guidelines for Working with Notebook Computers.
2. Remove the hinge cover (see Removing the Hinge Cover).
3. Remove the keyboard (see Removing the Keyboard).
4. Loosen the two captive screws securing the memory module cover, then remove the cover and set it aside.
5. Remove the memory module if installed.
6. Install the new memory module:
a. Align the notch in the memory module edge connector with the tab in the connector slot.
b. Slide the module firmly into the slot at a 45-degree angle, and then rotate the module down until it clicks into place. If you do not feel the click, remove the module and reinstall it.
NOTICE: If the memory module cover is difficult to close, remove the memory module and reinstall it. Forcing the cover to close may damage your computer.
7. Replace the memory module cover and tighten the screws.
8. Replace the keyboard
9. Replace the hinge cover