My RAM has 2 slots installed, but the readable is only 1 slot

[Rei72]

My RAM is installed 2 slots, but on windows only 1 slot is installed. I checked through the cpu-z software readable 2 slots installed. I have made an effort:

- remove one of the slots

- swap between slot 1 and slot 2

- update bios

- update windows

- make sure on the slots there is no dust or debris

 

with various attempts but still  unsuccessful

[Max3Aj]

Hi @Rei72, Welcome to HP Support Community. 

Thank you for posting your query, I will be glad to help you. 

Since CPU-Z detects both RAM slots but Windows only recognizes one, the issue may be hardware-related or due to firmware/software limitations. 
Here are some additional troubleshooting steps:

Check Task Manager and System Information

• Open Task Manager (Ctrl + Shift + Esc) → Go to the Performance tab → Click Memory.
• Check if it shows both RAM modules or only one.
• Open System Information (Win + R, type msinfo32, and press Enter). See if both RAM slots are listed.

Verify with BIOS

• Restart your laptop and enter BIOS (F10 on startup).
• Look for Memory Information to confirm if both RAM modules are detected.
• If BIOS detects only one module, the issue might be with the motherboard, RAM slot, or compatibility.

Test Individual RAM Sticks

• Insert only one RAM module at a time in each slot and check if both work separately.
• If one slot never works, the slot may be faulty.

Try Different RAM Modules

• If possible, test with another compatible RAM stick to see if the issue is with the RAM module itself.

Check for Windows Memory Limits

• Open System Configuration (Win + R, type msconfig, and press Enter).
• Go to the Boot tab → Click Advanced options → Uncheck Maximum memory.
• Restart and check if Windows recognizes both slots.

[Max3Aj]

Update Chipset and Memory Drivers

• Go to HP Support and download the latest chipset drivers and memory controller drivers for your model.
• Also, check Windows Update for any pending hardware-related updates.

Reset BIOS Settings

• Enter BIOS (F10 on startup), select Load Default Settings, save, and exit.

Check HP Diagnostics

• Restart your laptop and press F2 to enter HP Hardware Diagnostics.
• Run a Memory Test to check if both slots and modules are detected.

I hope this helps. 

Take care and have a good day. 

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping! 

Max3Aj

HP Support