1. Overview
This manual provides detailed instructions for installing the PARTS-QUICK 4GB DDR3 PC3-10600 1333MHz DIMM memory module. This module is specifically designed for compatibility with the HP Presario CQ5811 desktop system, enhancing its performance and multitasking capabilities. Please read all instructions carefully before proceeding with the installation.
2. Safety Information
Always prioritize safety when working with computer hardware. Failure to follow these guidelines may result in personal injury or damage to your equipment.
- Power Off: Ensure your computer is completely powered off and unplugged from the wall outlet before opening the case.
- Static Electricity: Static electricity can damage sensitive electronic components. Ground yourself by touching a metal part of the computer chassis before handling the memory module. Consider using an anti-static wrist strap.
- Handle with Care: Hold the memory module by its edges, avoiding contact with the gold connectors or the chips.
- Work Area: Work in a clean, well-lit, and organized environment.
3. Installation Guide
Follow these steps to correctly install your new memory module:
- Prepare Your System:
- Shut down your HP Presario CQ5811 computer completely.
- Unplug the power cord and all other cables (monitor, keyboard, mouse, etc.) from the back of the computer.
- Move the computer to a flat, stable surface.
- Open the Computer Case:
- Refer to your computer's specific manual for instructions on how to open the case. Typically, this involves removing a few screws on the back panel and sliding the side panel off.
- Once the case is open, ground yourself by touching an unpainted metal surface on the computer chassis.
- Locate Memory Slots:
- Identify the DIMM memory slots on the motherboard. These are usually long, narrow slots with clips on either end.
- If you are replacing existing memory, gently push the clips outward to release the old module and carefully remove it.
- Install the New Memory Module:

Image: PARTS-QUICK 4GB DDR3 DIMM memory module. This image shows the memory module itself, highlighting its form factor and general appearance.
- Align the notch on the bottom edge of the new PARTS-QUICK memory module with the key in the DIMM slot. The module will only fit one way.
- Place the module into the slot and press down firmly and evenly on both ends until the clips on the sides snap into place, securing the module.
- Ensure the module is fully seated and the clips are locked.
- Close the Computer Case:
- Replace the side panel of your computer and secure it with the screws you removed earlier.
- Reconnect all cables and the power cord.
4. Verification of Installation
After installation, power on your computer and verify that the new memory is recognized:
- BIOS/UEFI Check: During startup, enter your computer's BIOS or UEFI settings (usually by pressing F2, Del, or F10). Look for a system information or memory section to confirm the total installed RAM.
- Operating System Check:
- Windows: Right-click on "This PC" or "My Computer," select "Properties." The installed RAM will be displayed.
- Linux: Open a terminal and type
free -horcat /proc/meminfo.
- If the new memory is not recognized, refer to the Troubleshooting section.
5. Maintenance
Memory modules generally require minimal maintenance once installed. However, consider the following:
- Dust Control: Periodically clean the interior of your computer to prevent dust buildup, which can affect cooling and component longevity. Use compressed air for this purpose.
- Environmental Conditions: Ensure your computer operates in a well-ventilated area, away from extreme temperatures and humidity.
6. Troubleshooting
If you encounter issues after installing the memory module, try these steps:
- Computer Does Not Boot or Beeps:
- Ensure the memory module is fully seated in its slot. Remove and re-insert it, making sure the clips snap securely.
- Try installing only the new module (if you have multiple) to isolate the issue.
- Consult your motherboard manual for beep codes, which can indicate specific memory errors.
- Incorrect Amount of RAM Recognized:
- Verify that the module is correctly seated.
- Check your system's BIOS/UEFI settings to ensure the memory is detected.
- Ensure your operating system is 64-bit to fully utilize more than 4GB of RAM.
- System Instability or Crashes:
- Run a memory diagnostic tool (e.g., Windows Memory Diagnostic, MemTest86) to check for errors.
- Ensure your motherboard's BIOS is up to date.
If problems persist, contact PARTS-QUICK technical support for assistance.
7. Product Specifications
| Brand | PARTS-QUICK |
| Capacity | 4 GB |
| Memory Technology | DDR3 |
| Memory Speed | 1333 MHz (PC3-10600) |
| Form Factor | 240 pin DIMM |
| Voltage | 1.5 Volts |
| Error Correction | Non-ECC Unbuffered |
| Compatibility | HP Presario CQ5811 Desktop |
| Environmental Compliance | Halogen Free; ROHS Compliant |
8. Warranty and Support
This PARTS-QUICK memory module is backed by a Lifetime Warranty, ensuring long-term reliability and peace of mind. For any technical assistance, installation questions, or troubleshooting, please utilize our Toll-Free Technical Support.
Contact information for support can typically be found on the PARTS-QUICK official website or product packaging.