Memory
Description Spare part number
Memory module, DDR4, 2133 MHz (15-bc300~399, 400~499 models)
●
8 GB 820570-005
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4 GB 820569-005
●
2 GB 851379-005
Memory module, DDR4, 2400 MHz (15-bc300~399, 400~499 models)
●
8 GB 862398-855
●
4 GB 862397-855
●
2 GB 864271-855
Memory module, DDR4, 2666 MHz (15-dp0000~0999 models)
●
8 GB 937236-855
Before removing the memory, follow these steps:
1. Prepare the computer for disassembly (Preparation for disassembly on page 34).
2. Remove the base enclosure (see Base enclosure on page 34).
3. Disconnect the cable from the battery (see Battery on page 36).
If you are replacing a memory module, remove the existing memory module:
1. Lift the clear lm covering the memory module.
2. Spread the two retention clips outward (1) until the memory module tilts up at a 45-degree angle, and
then remove the module (2). Use the same procedure to remove all memory modules.
CAUTION: To prevent damage to the memory module, hold the memory module by the edges only. Do
not touch the components on the memory module.
To protect a memory module after removal, place it in an electrostatic-safe container.
To install a memory module:
42 Chapter 5 Removal and replacement procedures for authorized service provider parts