rogerharris's Posts

rogerharris's Posts

so I want to install the twin Xeon 5440 in the Q5400.. but now i get two noisy computers. Very frustrating.. 
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 (... See more...
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
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 lat... See more...
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.
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. ... See more...
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.
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... See more...
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.
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 te... See more...
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.
Fans are all dell, and all work, except full on.  See the test results above. This is what is confusing. Where are there sensors  ? and if there are none how is the system regulated.  I do have ram t... See more...
Fans are all dell, and all work, except full on.  See the test results above. This is what is confusing. Where are there sensors  ? and if there are none how is the system regulated.  I do have ram temps so obviously those are on the this board. For example this user posted CPUID on here, has CPU and RAM temps, but I don’t get such CPU readings. Is 89C Too Hot for Precision T5400 Under Full Load?   http://en.community.dell.com/support-forums/desktop/f/3514/t/19463576 Some posts elsewhere on this refer that there are there temp sensors in fans. I don’t know about that, but still no clearer,  Why do fans trigger the bios alert to go full on ? Right now it is not clear how to proceed. Buying a series of parts (3 fans, motherboard) without diagnostics can take up to two months with waiting times. And also is very high cost.   I could try reverting the bios, as the updates may not work with some configurations. IF there is no diagnostic method then simplest route appears to be fit a high spec fan control system with temp sensors.  
I ran more diagnostics. This where am at so far. No better for knowing which to replace. i.e. fans or motherboard. Bios defaults reset All cables disconnected, reconnected. Fans dismantled ... See more...
I ran more diagnostics. This where am at so far. No better for knowing which to replace. i.e. fans or motherboard. Bios defaults reset All cables disconnected, reconnected. Fans dismantled and cleaned Bios defaults reset Bios at version A11 1234 lights all off All tests for CPU/memory OK All tests in windows 7 OK. i.e. Sandra, Dell diagnostics, CPUID etc   No change in problem.  "alert unable to initialize the fan controller" All fans full on, no readings for any fan RPM in Speedfan or Dell bootup diagnostics. Details to follow.   Fan on off tests   for the 3 fans. Results as follows (Abridged from screen readouts)    ++++++++++++++++++++++ Test status setting fan speed on high Detected fan speed rpm 0 Error code 3700:011B Msg: FRONT_FAN – The fan speed is incorrect   Test status setting fan speed on high Detected fan speed rpm 0 Error code 3700:011B Msg: MEMORY_FAN– The fan speed is incorrect   Test status setting fan speed on high Detected fan speed rpm 0 Error code 3700:011B Msg: CARD_CAGE_FAN– The fan speed is incorrect   ++++++++++++++++++++++++++++++ Cable Detect inputs: Cable Detection summary  (Abridged from screen readouts)   Thermal diode cable not installed   NOTE from, user.. no messages on boot like Alert! Air temperature sensor not detected. ++++++++++++++++++++++++++++++++   SMBIOS: Environment information  (Abridged from screen readouts)   Device no: 1 Device type: fan Temperature probe handle : no probe provided Cooling unit group: 0 Conversion factor: n/a   Device no: 2 Device type: fan Temperature probe handle : no probe provided Cooling unit group: 0 Conversion factor: 1   Device no: 3 Device type: fan Temperature probe handle : no probe provided Cooling unit group: 0 Conversion factor: 1   Device no: 4 Device type: fan Temperature probe handle : no probe provided Cooling unit group: 0 Conversion factor: 1     Description : CPU0 and CPU1 Temp Readings all at N/A or unknown.   +++++++++++++++++++++++++++++++ My Motherboard 0RW203 is Revision X10. Is this earlier than A02 etc I see as common second hand replacements ?  There is an un-used plug (in red) not in the T5400 manual. My i/o interface Dell MM777-784-006m   Rev X04 has no temp sensor as indicated in the manual. (example photo) It would help if you can let us know if some motherboard revisions have CPU temp sensors or sensors located in the fans ? or link me referral to dell engineer documents for these boards ? As it is not clear how the temp control works, or how to diagnose thanks.
I ran more diagnostics. This where am at so far. No better for knowing which to replace. i.e. fans or motherboard. Bios defaults reset All cables disconnected, reconnected. Fans dismantled ... See more...
I ran more diagnostics. This where am at so far. No better for knowing which to replace. i.e. fans or motherboard. Bios defaults reset All cables disconnected, reconnected. Fans dismantled and cleaned Bios defaults reset Bios at version A11 1234 lights all off All tests for CPU/memory OK All tests in windows 7 OK. i.e. Sandra, Dell diagnostics, CPUID etc   No change in problem.  "alert unable to initialize the fan controller" All fans full on, no readings for any fan RPM in Speedfan or Dell bootup diagnostics. Details to follow.   Fan on off tests   for the 3 fans. Results as follows (Abridged from screen readouts)    ++++++++++++++++++++++ Test status setting fan speed on high Detected fan speed rpm 0 Error code 3700:011B Msg: FRONT_FAN – The fan speed is incorrect   Test status setting fan speed on high Detected fan speed rpm 0 Error code 3700:011B Msg: MEMORY_FAN– The fan speed is incorrect   Test status setting fan speed on high Detected fan speed rpm 0 Error code 3700:011B Msg: CARD_CAGE_FAN– The fan speed is incorrect   ++++++++++++++++++++++++++++++ Cable Detect inputs: Cable Detection summary  (Abridged from screen readouts)   Thermal diode cable not installed   NOTE from, user.. no messages on boot like Alert! Air temperature sensor not detected. ++++++++++++++++++++++++++++++++   SMBIOS: Environment information  (Abridged from screen readouts)   Device no: 1 Device type: fan Temperature probe handle : no probe provided Cooling unit group: 0 Conversion factor: n/a   Device no: 2 Device type: fan Temperature probe handle : no probe provided Cooling unit group: 0 Conversion factor: 1   Device no: 3 Device type: fan Temperature probe handle : no probe provided Cooling unit group: 0 Conversion factor: 1   Device no: 4 Device type: fan Temperature probe handle : no probe provided Cooling unit group: 0 Conversion factor: 1     Description : CPU0 and CPU1 Temp Readings all at N/A or unknown.   +++++++++++++++++++++++++++++++ My Motherboard 0RW203 is Revision X10. Is this earlier than A02 etc I see as common second hand replacements ?  There is an un-used plug (in red) not in the T5400 manual. My i/o interface Dell MM777-784-006m   Rev X04 has no temp sensor as indicated in the manual. (example photo) It would help if you can let us know if some motherboard revisions have CPU temp sensors or sensors located in the fans ? or link me referral to dell engineer documents for these boards ? As it is not clear how the temp control works, or how to diagnose thanks.
After this message I press f1 and it all works but all fans are full on. This is the constant state of the machine for some time.   Speedfan shows no RPM indicator for fans 1 to 3, and no tempera... See more...
After this message I press f1 and it all works but all fans are full on. This is the constant state of the machine for some time.   Speedfan shows no RPM indicator for fans 1 to 3, and no temperature readings for the dual xeons. except all at -26. I presume that means no reading. The memory temps are low at 50-60 CPUID shows no temp readings for the xeons Dell diagnostics from the usb boot, says that there is an error for all fans, and that they are all on full. All CPU/Memory diagnostics OK   Done all the usual stuff. So how do I diagnose if a fan is the problem, or it’s the motherboard ?    e.g. Could one fan with a dodgy sensor cause all this, or is it likely the motherboard ?