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July 13th, 2024 16:06
How to Fix Overheating and Limit Throttling Issues on DELL Precision 5820 and the Solution of Adding Rear Fans
Recently, I encountered overheating and Limit Throttling issues on my DELL Precision 5820. To address this problem, I made several upgrades and adjustments to the cooling system. Below are the steps I took and the results I achieved.
Upgrade Steps
1. Using Noctua NH-U9DX i4 and 2 Noctua NF-A9x14 PWM Fans
I replaced the original cooling system with the Noctua NH-U9DX i4 and added two Noctua NF-A9x14 PWM fans. Noctua is a well-known brand for its high-performance and quiet cooling products.
- Noctua NH-U9DX i4, Premium CPU Cooler for Intel Xeon LGA20xx (Brown) $64.95
- Noctua NF-A9 PWM, 4-Pin Premium Cooling Fan For Desktop (92mm, Brown) $18.95
2. TeamProfitcom 5-Pin Female to 4-Pin Adapter
To connect the additional fans, I used the TeamProfitcom 5-Pin Female to 4-Pin adapter. This adapter helped me connect two additional rear fans to the HDD Fan port on the motherboard and 2 fans for the new CPU cooling system.
3. Using Low-Noise Adapter
The Noctua NF-A9x14 PWM comes with a Low-Noise Adapter (LNA) to reduce the fan speed. Without the LNA, the fans would always run at full speed. After installing the LNA, the fans run at about 1700 to 1800 rpm. I checked and found the noise level to be around 48dB, which is not too bad considering the cooling performance.
Results
Testing with Cinebench R23
Before upgrading, I ran Cinebench R23 for 10 minutes, and the CPU temperature exceeded 90 degrees Celsius. When it reached 93 degrees Celsius, I had to stop to avoid hardware damage. However, after upgrading the cooling system, the CPU temperature stabilized at 74-75 degrees Celsius under the same test conditions. This nearly eliminated the overheating and Limit Throttling issues.
Computer Configuration
- CPU: Xeon W-2145
- RAM: 4x16GB SK Hynix DDR4 2666 ECC
- VGA: Quadro P4000
- Power: 950W
- SSD 1: SK Hynix 512 GB Gen 4
- SSD 2: SK Hynix 960 GB SSD Gen 4 U2 Enterprise Class
- SSD 3: Kingston 1TB Gen 4
- SSD 4: Kingston 1TB Gen 4
Conclusion
Upgrading the cooling system with Noctua NH-U9DX i4, adding Noctua NF-A9x14 fans significantly improved the cooling performance of the DELL Precision 5820. I'm not sure if this upgrade will have any negative impact on the computer's power system (so please consider this before proceeding) or if it will be stable for long-term use, but after running it for a few days, I haven't encountered any issues. I'm completely satisfied with the upgrade results. If you are experiencing similar problems, this is an effective solution to consider. I hope this article helps you optimize your system.
Ahn Nguyen
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July 19th, 2024 16:23
jdrch
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November 2nd, 2024 23:10
I'm about to buy one of these from Dell Refurbished. 2 things:
Otherwise, thanks!
Ahn Nguyen
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November 9th, 2024 01:28
@jdrch On the 7280 model, Dell added two fans that blow air out the back. However, on the 5820 model, Dell removed these two rear exhaust fans. Meanwhile, there are three intake fans that pull air into the case. Additionally, with the removal of the partitioned cover to improve airflow after upgrading the cooling system, I think adding two rear fans is necessary to create the best airflow circulation inside the case. After making the upgrades mentioned above, I no longer have any issues with overheating and am completely satisfied with the improvements.
jdrch
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November 10th, 2024 00:49
@Ahn Nguyen OK glad you're happy. Check back in a year to see how much dust is in the case. I'd be interested in seeing that ;)
Insert_clever_name_here13
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November 20th, 2024 20:45
Would I need the 5 pin adapter if I only added two fans to the back? I’m running a 2125 and it’s cool enough with stock, but the airflow is killing my power hungry 980ti. Also is 92mm fans what you find fits best? Thanks!
jdrch
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November 21st, 2024 04:20
@Insert_clever_name_here13 Check your net airflow rate through the case before you do that. If it's negative, you'll wind up sucking dust into the case and causing more problems.
(edited)
Kracker001
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November 28th, 2024 21:02
This is excellent. If you are still around how did you get the back fans to work? The splitter runs off the fans for the CPU and I don't see another way to hook the back fans up. I really like what you did though. I have a gpu that throws out major heat and was trying to find a way to get the heat out the case.
jdrch
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184 Posts
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November 29th, 2024 19:10
Update: assuming airflow is proportional to airflow and that all the case fans are the same RPM, @Ahn Nguyen's solution should result in positive case air pressure and not ingest dust.
@Ahn Nguyen how did you attach the rear fans to the rear exhaust mesh?
Ahn Nguyen
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January 25th, 2025 20:19
@Insert_clever_name_here13
Using two Noctua NF-A9x14 PWM Fans would be an excellent choice for your setup. These fans are efficient, and provide great airflow while maintaining a quiet operation.
To connect the fans, you will need a 5-Pin Female to 4-Pin Adapter, as the Noctua fans use standard 4-pin PWM connectors, and your system likely requires the 5-pin adapter for compatibility.
Additionally, I recommend using the Low-Noise Adapter (LNA) that comes with the Noctua fans. This will further reduce noise levels without compromising too much on airflow.
Ahn Nguyen
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January 25th, 2025 20:23
@Kracker001
To get the back fans working, I connected them using a PWM splitter cable that shares the power from the HDD fan header. However, this method won’t give you PWM control, so the fans will run at a constant speed unless you use the Low-Noise Adapter (LNA) included with the Noctua fans to keep them quiet.
For your GPU's heat issue, adding rear exhaust fans is a great idea! The extra airflow will help pull the hot air out of the case more efficiently and keep your GPU and other components cooler.
Ahn Nguyen
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January 25th, 2025 20:27
@jdrch To attach the rear fans to the exhaust mesh, I used the screws provided with the Noctua fans. In addition to using screws or zip ties, another simple and effective method is to use cable management ties (the kind used for wrapping cables). You can loop these ties through the fan’s mounting holes and the rear exhaust mesh. This method is not only easy to set up but also makes it much easier to remove the fans when you need to clean or maintain them.
Kracker001
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January 26th, 2025 00:27
@Ahn Nguyen Thank you. Really appreciate the reply. I'm ordering now and can't wait to get this hooked up.
paleomoment
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January 29th, 2025 00:00
@Ahn Nguyen , I have recently acquired a Dell Precision 5820, with similar specifications as your own.
Could you show me the ports that you utilized to attach each of your non-stock fans? I only see one CPUFAN plug (near the PSU), and I am curious where the other ports you used are located.
Ahn Nguyen
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February 2nd, 2025 00:03
@DellMoment To connect 2 rear additional fans, You can used the TeamProfitcom 5-Pin Female to 4-Pin adapter which help you connect two additional rear fans to the HDD Fan port.
You can refer from the picture below.
(edited)
mcnaught82
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February 15th, 2025 01:24
Installing the Noctua heat sink and fans did not cause the bias to fail the post boot? I watched a video and it showed the system failing to boot because the bios thinks the fans are failing because they can’t reach max RPM as OEM fans.