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Dell XPS410 Air temp sensor not detected


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#1 Goldenvoice

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Posted 30 September 2012 - 11:07 PM

Dell XPS 410 Intel core 2 6320 @ 1.86GHz ea, Memory 2.00 GB, 32 bit, Vista Home Premium.

Upon booting, screen halts with: Alert! Air temerature sensor not detected. Strike the F1 key to continue, F2 to run the setup utility.

F1 naturally lets the OS load, and the machine seems to run fine, but I'm amazed at how darned loud this machine is. 2 and 2 together make be think pehaps the fans are in fact running full speed all the time... (almost like sitting next to a refrigerator that's running all the time).

So, can this be remedied?

Thanks so much,
Joe

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#2 MDTechService

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Posted 30 September 2012 - 11:55 PM

It is possible that if the air temp sensor is defective, the system could be defaulting the fans to 100%. Go into BIOS and check your power management settings.
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#3 Goldenvoice

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Posted 01 October 2012 - 12:57 AM

The power management in BIOS only seems to include settings such as power interuption recovery, and auto-awaking...

Hmmm. My wife has had this at her small retail store the last 2 years. When I brought it home, the cooling system was so plugged with dust (I assume because the fans run 100 percent all the time) - I'm surprised it didn't cook something.

Would the heat sensor (if it comes to that) be something I could replace? (fair with an iron)

#4 Goldenvoice

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Posted 01 October 2012 - 01:53 AM

SOLVED: Reading HERE, I pulled the cover, and discovered the twisted pair from the sensor tucked more than tightly between the covers for the main fan, and the heat sink; the red wire had been severed. Gently separating the two covers with my pocket knife, I removed the wires from their pinch, and soldered the red wire back together.

Now: I no longer get the freeze and warning upon boot, and although not silent by a long shot, the Dell is less that half the noise I had previous.

:) Thanks, happier Joe

PS: I can't help but wonder if this computer has been running without a sensor it's whole life.
(I sure can't picture those wires ending up in such a pinch on thier own) ;)

Edited by Goldenvoice, 01 October 2012 - 01:55 AM.


#5 mgroen

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Posted 01 August 2013 - 05:34 AM

Hi, I have the exact same issue (Alert! Air temperature sensor not detected), it came up just after this weekend, when I cleaned the inside of my pc.

Am I correct that you fixed this issue, by repairing the red cable? (the connector connects 4 small cables to the motherboard: white/blue/red/black

 

If that is the case I will investigate the cable for any damages.

 

Do you have any other tips? I would like to hear this issue is pretty frustrating, please post to my email address: mathijs.groen@gmail.com

 

Many thanks in advance!

 

Mathijs

 

 

SOLVED: Reading HERE, I pulled the cover, and discovered the twisted pair from the sensor tucked more than tightly between the covers for the main fan, and the heat sink; the red wire had been severed. Gently separating the two covers with my pocket knife, I removed the wires from their pinch, and soldered the red wire back together.

Now: I no longer get the freeze and warning upon boot, and although not silent by a long shot, the Dell is less that half the noise I had previous.

smile.gif Thanks, happier Joe

PS: I can't help but wonder if this computer has been running without a sensor it's whole life.
(I sure can't picture those wires ending up in such a pinch on thier own) ;)






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