Fan Recommendations?

[MikkelG]

Hey guys, I am experiencing very high GPU & CPU temps for my 2 y/o Omen 25L.

In an attempt to reduce temps and noise I want to get one or more fans, but I'd like to hear your input as to what fans I should get and where in the case I should place them most  optimally.

[Alden4]

Hi @MikkelG,

Welcome to HP Support Community.  

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

Addressing high GPU and CPU temperatures in your Omen 25L desktop is a good initiative, and adding additional fans can certainly help improve airflow. Here are some steps and recommendations to consider.

 

1. Assess Current Airflow:

• Check your current case airflow. Make sure that there are no obstructions blocking the intake/exhaust vents.
• Ensure that the existing fans are functioning properly.

2. Determine Optimal Fan Placement:

• Identify the current fan placement in your case. Typically, front and bottom fans are intake, while rear and top fans are exhaust.
• Additional intake fans at the front can help bring in cool air, and exhaust fans at the rear and top can expel hot air.

3. Selecting Fans:

• Look for fans with good airflow (measured in CFM - cubic feet per minute) and low noise levels (measured in dB).
• Popular fan sizes are 120mm and 140mm. Make sure the fans you choose are compatible with your case.

4. Fan Placement Recommendations:

• Front Intake Fans: Adding fans at the front can help bring in cool air. If there are mounting positions available, consider adding 1-2 intake fans here.
• Rear Exhaust Fan: Ensure there is an exhaust fan at the rear to expel hot air. If there is space, you can consider adding one.
• Top Exhaust Fans: If your case has a top mounting position, adding exhaust fans here can help with hot air removal. This is especially effective if your CPU cooler directs hot air upwards.

5. Positive Air Pressure:

• Aim for a positive air pressure setup, where intake fans slightly outnumber exhaust fans. This helps reduce dust buildup inside the case.

6. GPU and CPU Cooling:

• Ensure that your GPU and CPU coolers are clean and free from dust. Consider upgrading the CPU or GPU cooler if necessary.

7. Fan Speed Control:

• If your motherboard supports it, use fan speed control to adjust fan speeds based on temperature. This can help balance cooling performance and noise levels.

8. Monitor Temps:

• After adding fans, monitor your GPU and CPU temperatures to ensure they are within acceptable ranges.

 

Fan Recommendations (Example):

• Front Intake: Noctua NF-P12 redux-1700 PWM, Corsair AF120
• Rear Exhaust: Noctua NF-S12B redux-1200 PWM, be quiet! Pure Wings 2
• Top Exhaust: Noctua NF-A14 PWM, NZXT Aer P140

Before purchasing fans, check the available mounting positions in your case and verify compatibility with your motherboard for fan connections.

I hope this helps. 
 

Take care and have a good day.

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Alden4
HP Support