Aurora R12, CPU Fan Failed to Respond Correctly

Question

Hi All,

Recently, I bought an Alienware R12 (Air Cooling Version, Windows 11). In order to have a better cooling and noise performance. I did something like below:

1. I replaced its original stock CPU fan with a AIO liquid cooler (Corsair Hydro Series H60 AIO Liquid CPU Cooler - Santa powered).

2. I replaced its original front fan with a Noctua NF-P12 redux-1700 PWM and connect it to front fan header.

However, it will always throw an error message at pre-boot system performance check whenever I start/restart my computer. The error message is "Fan - The (CPU Fan) fail to respond correctly". The error code is 2000-0511 and the validation code is 111141. So, I tried to debug on my own like below.

1. Installed a VRM heatsink N1C1D (L-Shape) on the motherboard.

2. Upgraded the BIOS to latest version 1.1.8

3. Plug the H60 radiator 4pin to Fan Top header, H60 pump 3pin to Fan Pump header. Leave the Fan CPU header empty.

4. Plug the H60 radiator 4pin to Fan Top header, H60 pump 3pin to Fan CPU header. Leave the Fan PUMP header empty.

5. Plug the H60 radiator 4pin to Fan Top header, H60 pump 3pin to Fan Pump header. Plug an extra Noctua NF-A9 PWM to the Fan CPU header.

All of above came with no luck. Any thought?

Thanks in advance!

redxps630 · Accepted Answer

Many (but not all) after market fans have significantly different resistance and thus load current from Dell stock fan. No matter how you shuffle these fans around, Dell bios rpm read back falls outside what it considers normal limits hence the start up error. In some older Alienware models based on user anecdotal reports some fans are close enough to Dell stock fan that they do not trigger error. But this is done by trial and error. Dell bios update would not help you fix this problem either. Basically Dell bios is fastidious and unforgiving to most non-Dell fans.

One user reported “Aurora R11 BIOS doesn't like the low-RPM fan that came with the Corsair H60. You might want to replace that fan with Corsair ML120 Pro.

I have an Aurora R11 with the ML120 Pro as the CPU liquid cooler radiator fan, and BIOS does not give any errors when booting.”

XoRIOoX · Answer

How about pin connection to the motherboard? Did you connect the radiator to cpu_fan pin? And the pump 3pin to pump fan 4pin?

Chihue · Answer

I have the same problem, also tried all the combinations for connections and the issue persists.

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Aurora R12, CPU Fan Failed to Respond Correctly

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