HP Color LaserJet Enterprise CP4525 Printer series - Manual (Page 183)

Install memory DIMMs
You can install more memory for the product by adding a dual inline memory module (DIMM).
CAUTION: Static electricity can damage electronic parts. When handling electronic parts, either wear
an antistatic wrist strap, or frequently touch the surface of the antistatic package and then touch bare
metal on the product.
1. Turn the product off.
2. Disconnect all power and interface cables.
NOTE: This illustration might not show all the cables.
3. Locate the thumb screws on the formatter board in the rear of the product.
ENWW Replacement instructions 169