Shmoo77
1 Copper

xps 730 Ambient Temperature Sensor Failure

When I boot up my computer a black screen comes up saying "Ambient temperature sensor failure or cable not connected" Press F1 to startup. I checked to see if all cables were connected, which they were. If anyone could please help me out with this... The power supply (1kw) is yellow, not blinking or anything. When i continue after the error everything is fine but fans are a bit noisy. Please help. Oh, and ive had this xps 730 for just one day Smiley Tongue but i've DL'd the 1.0.3 bio and other driver updates.
Message Edited by Shmoo77 on 08-05-2008 12:15 PM
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30 Replies
stefanrp97
3 Zinc

Re: xps 730 Ambient Temperature Sensor Failure

I would reseat the connection for the sensor to the master I/O board. If the problem continues, call dell and have them send a tech with another thermal sensor and master I/O board.

PN: FT231 Thermal Sensor Assy

PN: TG003 Master I/O Board

Smiley Happy

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Moderator
Moderator

Re: xps 730 Ambient Temperature Sensor Failure

Shmoo77,

If the cable is plugged into the wrong connector or not seated correctly, then you will get the error. When you opened the case cover, were any of the cables loose?
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mikeb87
1 Copper

Re: xps 730 Ambient Temperature Sensor Failure

I'm having the same problem with the ambient temperature sensor failure. When I called Dell the woman I was talking to said that this was the first time anyone in her department has heard of this error. After 2 hours on the phone, they said they were going to send someone out to replace every single fan in the case. Obviously, that won't fix the problem but by that time it was about 4 in the morning and I didnt feel like disputing their decision for another hour. Tech guy came this morning and agreed with me, replacing all the fans won't fix an error concerning the temp sensor. I don't poke around inside computers too often, and he didn't seem to know where the sensor was located, could somebody point me in the right direction? I would appreciate it. My system also runs just fine, aside from all the fans running at 55%, it's a tad noisy.Smiley Happy
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stefanrp97
3 Zinc

Re: xps 730 Ambient Temperature Sensor Failure

The master control board has a firmware reset jumper that you can try to use to fix the problem. A conflict may have arisen from the BIOS update. Turn the system off, switch the jumper and restart it. A message may popup, see if the fan problem persists. Then turn it off and switch it back.
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lugo02
2 Iron

Re: xps 730 Ambient Temperature Sensor Failure

I had the same problem with my XPS 730, I have had it for less than 2 months. Wake up one morning and got the same error message. There were not lose cable in my case. I chat with support and they are going to send me a tech with the new* motherboard. I did nothing out of the ordinary the night before so I have no idea why i suddenly got that error. The major systom is that the fans are now going crazy, it almost unbearable.

 

 

 

 

*new to me

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Moderator
Moderator

Re: xps 730 Ambient Temperature Sensor Failure

lugo02,

So you got the Temperature Sensor Failure and then the fans went crazy, in that order?
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stefanrp97
3 Zinc

Re: xps 730 Ambient Temperature Sensor Failure

The air temp sensor and processor fan connect to the master control board which means that, most likely, the motherboard won't fix the problem.
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lugo02
2 Iron

Re: xps 730 Ambient Temperature Sensor Failure

Yes Chris in that Order... Sensor failure then noisy fans. I don't think it could have happened the other way around. The computer was off for about 8 hours before that happened.

 

Now if the motherboard is not the issue then i'll rather keep my current board instead of replacing it with a refurbished board. The Dell tech support did not know where the temperature sensor is either, he was searching throught the same manual that was shipped with my system and it's not detailed on the manual. I would have thought that the Dell people would have had access to more detailed information about their systems than what is available on line to the public.

Message Edited by lugo02 on 09-22-2008 07:48 PM
Message Edited by lugo02 on 09-22-2008 08:29 PM
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lugo02
2 Iron

Re: xps 730 Ambient Temperature Sensor Failure

Since the Ambient Sensor Problem, my XPS lights no longer stays on when the PC returns from sleep state or when I turn it on from a shutdown. I have to manually turn them on from the Nvidia Controlpanel each time.
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