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RE: Precision T5400 "alert unable to initialize the fan controller"

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No worries, just making sure the correct info is being given out   emoticon.Smile.title

You're right about the temp sensor on the panel though - that is the type on the T5400 

Colin H
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I'm based in the UK and available Monday to Friday 9am-5pm GMT

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rogerharris
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RE: Precision T5400 "alert unable to initialize the fan controller"

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thanks for your help guys.  So the sensors are on the motherboard would explain it. Especially if there are two, one for the ram and one for the CPU.  My ram temps are fine, but I dont get any CPU temps as in the member here who posted the CPUID results above from a T5400.. So maybe CPU sensor is gone.

Will dissamble the heatsinks and try to find the CPU sensors.  Depending on how that goes, maybe fit a fan control unit to keep the fans in line.

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rogerharris
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RE: Precision T5400 "alert unable to initialize the fan controller"

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except my panel does not have such a an i/o panel sensor i should point out. There are empty pins where it says there should be a sensor. 

It looks like there have been revisions around the various sensors. Maybe moving from front case to motherboard.

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speedstep
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RE: Precision T5400 "alert unable to initialize the fan controller"

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If you have the white 2 pin connector on the front panel then there should be a sensor going to the front of the case.  Its black and clips to the cover on the inside like my picture shows.

If there are holes soldered in with a transistor there then that's your sensor. T5400 Front USB I/O Audio Control Panel  MM777

If there are Bad CAPS on this board or the motherboard that could also be the real issue.



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RE: Precision T5400 "alert unable to initialize the fan controller"

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I've circled the temp sensor on your picture from earlier in the thread. The soldered circles are the sensor.

Colin H
Dell | Social Outreach Services

I'm based in the UK and available Monday to Friday 9am-5pm GMT

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rogerharris
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RE: Precision T5400 "alert unable to initialize the fan controller"

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no, its empty holes where the sensor should be on the i/o panel.

But I have ram temp readings, so there is a sensor on the motherboard somewhere.  I may have to remove motherboard to locate these.

It appears Dell have moved sensors from case panel to motherboard during revisions.

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rogerharris
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RE: Precision T5400 "alert unable to initialize the fan controller"

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thanks. That was an example photo I should state. I think I did previously.

Mine has empty holes, no soldering. Maybe front panels were not good indicators for the system so this was revised later to motherboard only.

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speedstep
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RE: Precision T5400 "alert unable to initialize the fan controller"

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If it were my system I would at least take that panel out and flow thru solder in the holes and then put back to see if it changes the symptoms.


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rogerharris
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RE: Precision T5400 "alert unable to initialize the fan controller"

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Am still trying to sort this problem, and have got another dell t5400 which works fine so I can deduct the problem by swapping out parts. 

For ease of understanding I will refer to the working (quiet) machine as Q5400 and the noisy one as N5400.  There are differences between them.

Q5400 has Bios A03. It has one quad core Xeon 5430. The motherboard is CN0RW203 13740 85U 002C. The motherboard version is revision A02

N5400 has Bios A11. It has two quad core Xeon 5440. The motherboard is CN0RW203 13740 77V 0000I. The motherboard version is revision X10.

The codes seem to indicate N5400 is an early production motherboard. Maybe even first version.

BOOTUP AND TEST Q5400.

It boots up and is quiet. In Q5400 speedfan gives some very different readings to N5400.  It detects a fan controller EMC2710P (not detected in N5400).  All the fan speeds are there and can be controlled.  The Xeon 5430 also provides temperature readings.

FIRST SWAP TEST

To check if N5400 requires CPU temp readings to be quiet I swap processors.  (only so they both have one CPU).   The N5400 is still noisy. 

However the Q5400 is now noisy with the Xeon 5440 installed !.  At least I can use speedfan to quiet it though.  To check its not a faulty CPU i take out the Xeon 5440 and swap with its matched partner (remember the N5400 has dual Xeon 5440).   Same problem, no CPU temps, and noisy computer.

According to intel these are both the same family with similiar thermal monitoring.

So it appears like N5400 has maybe two problems.

1. Motherboard not report the fan controller EMC2710P

2. Both Xeons not providing CPU temps.

In how to proceed from here its confusing if anybody can advise

For problem 1. Either the board is faulty or its version is so old it was not compatible with the A11 bios upgrade.   So before replacing this board I can try reverting the bios to A03.

For problem 2.  Not sure ! What is the chance of both Xeons failing in such a way as they both will not  provide CPU temps, yet survive all other benchmark tests ?

If anybody has any info that would be great thanks

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rogerharris
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RE: Precision T5400 "alert unable to initialize the fan controller"

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so I want to install the twin Xeon 5440 in the Q5400.. but now i get two noisy computers.

Very frustrating.. 

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