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system fan and CPU thermal sensor failed diags
My wife's Latitude CPx has been experiencing problems since we bought it used.
These are the symptoms:
o fan never seems to be on
o bottom of laptop becomes very hot after 30 minutes
o system may shut down unexpectedly if not using a/c power
o sometimes on boot up, after Windows logo appears, the screen becomes nearly
black
I downloaded the diags and ran a few quick tests. Can someone help with the result
codes? I tried for about 40 minutes searching the knowledge base and forums for explanation
of these result codes.
----
CPU Thermal Sensor - Temperature Range Test : Fail
Result code: 3400-011A
Msg: Temperature sensor out of range, temp=101C, min 20c, max 100c
System Fan - Fan On/Off Test : Fail
Result Code: 3300-011A
Msg: Expected fan on high RPM. Detected fan RPM =0
Battery and Charger : Pass
----
So from this it seems the fan is never running and is not functioning at all. Does anyone have
experience replacing or repairing the system fan? Could this be a BIOS issue or does this
failure truly indicate that the problem is mechanical and that the fan needs to be replaced?
I will run a full diagnostics tomorrow morning. The laptop was becoming extremely hot and I
wanted to give it time to cool down.
-Shane
These are the symptoms:
o fan never seems to be on
o bottom of laptop becomes very hot after 30 minutes
o system may shut down unexpectedly if not using a/c power
o sometimes on boot up, after Windows logo appears, the screen becomes nearly
black
I downloaded the diags and ran a few quick tests. Can someone help with the result
codes? I tried for about 40 minutes searching the knowledge base and forums for explanation
of these result codes.
----
CPU Thermal Sensor - Temperature Range Test : Fail
Result code: 3400-011A
Msg: Temperature sensor out of range, temp=101C, min 20c, max 100c
System Fan - Fan On/Off Test : Fail
Result Code: 3300-011A
Msg: Expected fan on high RPM. Detected fan RPM =0
Battery and Charger : Pass
----
So from this it seems the fan is never running and is not functioning at all. Does anyone have
experience replacing or repairing the system fan? Could this be a BIOS issue or does this
failure truly indicate that the problem is mechanical and that the fan needs to be replaced?
I will run a full diagnostics tomorrow morning. The laptop was becoming extremely hot and I
wanted to give it time to cool down.
-Shane
whitt
30 Posts
0
November 5th, 2003 13:00
DELL-Karell
2.5K Posts
0
November 5th, 2003 13:00
Thank you for using the Dell Community Forum.
Fan never seems to be on.
This could be because of the fan and thermal cooling system failure error you are gettig.
Try upgrading to the latest bios file.
Dell Latitude CPxH.
or
Dell Latitude CPxJ.
After upgrading the bios run the fan test again.
If it still fails you need to replace your fan and thermal cooling assembly.
CPxJ service manual.
CPxH service manual..
You can purchase the parts from Dell Spare Parts.
Dell Spare Parts Phone# 800-372-3355 Ext:6-9937
Part#...........Description:
1191T...........Thermal Cooling Subassy includes fan, fan shroud and heatsink)
Bottom of laptop becomes very hot after 30 minutes.
Wheather the fan and thermal cooling assembly are working or not, this is normal.
The bottom plastics of all Dell portable systems get very hot.
Dell does not recommend that you place the portable system on your lap.
The system should be placed on a level work surface.
If you want to have the system on your lap, have something underneath it as well.
System may shut down unexpectedly if not using a/c power.
This sounds like your battery is just to old and is not holding a long enough charge.
Try another battery if possible.
Sometimes on boot up, after Windows logo appears, the screen becomes nearly
black.
Try downloading and installing the latest video drivers.
matmatios
1 Message
0
October 26th, 2011 08:00
the real problem is CPU Thermal Sensor how can I fixit :emotion-40:Diagnos result: