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11 Posts

01-28-2021

United Kingdom of Great Britain and Northern Ireland

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ThinkStation P620 Diagnostic Codes Deciphering

2021-01-28, 22:47 PM

I have a new ThinkStation P620. It displays diagnostic error codes flashing all the time. I do not find any of them listed here https://www.thinkworkstationsoftware.com/index.html?view=codes

 

One of the problems is the LED bars that make up the diagnostic display do not always display alphanumeric characters, so it is difficult to type them down.

 

Whilst running the display says 00AA

 

When powered off the display flashes between

0h 2 and then followed by a backwards F

and then

d followed by a small v or u and then 3 followed by a backwards F

 

What does this mean?

 

Perhaps I am reading the display upside down? Imagine the characters above written upside down and perhaps they mean something.

 

Another thing I have noticed is that the top USB socket indicator on the front panel does not have a white LED. The other three do. I have looked at the ThinkStation P620 on user reviews on YouTube and they show four LEDs whilst mine only has three. Maybe that is the problem?

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1097 Posts

01-14-2014

United States of America

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Re:ThinkStation P620 Diagnostic Codes Deciphering

2021-01-29, 15:46 PM

The codes that you are indicating below are likely BIOS post code outputs and not necessarily error codes.  

 

"00AA" typically means BIOS handoff to the OS. 

 

 

"0h 2 and then followed by a backwards F

and then d followed by a small v or u and then 3 followed by a backwards F"

 

This sounds like the normal post code output for when the system shuts down normally.  

 

 

What BIOS version is currently on your system? This can be found under the BIOS F1 setup, main screen. It should read something like S07KTxxA, where xx usually indicates the BIOS version number.  

 

Also in BIOS, can you check what mode the BIOS 7-segment display is set to? This can be found under BIOS F1 setup -> "Advanced" -> "Diagnostics" -> "DIAG 7-segment Mode".  To suppress the BIOS Post Code outputs, make sure this gets set to "Only Diag Error Code".  

 

 

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11 Posts

01-28-2021

United Kingdom of Great Britain and Northern Ireland

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Re:ThinkStation P620 Diagnostic Codes Deciphering

2021-01-29, 17:08 PM

BIOS is S07KT16A 01/05/2021

 

I had changed the BIOS diagnostics to Both BIOS Post & DIAGNOSICS based on another post. If I resort to default DIAGNOSTICS setting the 00AA display goes away. But the flashing display when powered off is the same which is what I originally saw. I am able to stop the flashing by setting the BIOS diagnostics to DISABLED.

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1097 Posts

01-14-2014

United States of America

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Re:ThinkStation P620 Diagnostic Codes Deciphering

2021-01-29, 17:18 PM

I'm not sure setting it to "Disabled" is the way to go.  I'd at least set it to "Diag Error Code" so you can see what type of errors (if any) your system is experiencing.  

 

If you set it back to "Diag Error Code only", can you take a picture of the error code that gets displayed when you shut down your system? 

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11 Posts

01-28-2021

United Kingdom of Great Britain and Northern Ireland

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Re:ThinkStation P620 Diagnostic Codes Deciphering

2021-01-29, 21:54 PM

Here are three pictures:

P620 running USB status

P620 showing the USB LED status on three of the four.

 

Diagnostic LED First Output

 

P620 powered off state. Diagnostic LED First Output.

 

Diagnostic LED Second Output

 

P620 powered off state. Diagnostic LED Second Output.

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1097 Posts

01-14-2014

United States of America

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Re:ThinkStation P620 Diagnostic Codes Deciphering

2021-02-01, 15:48 PM

Thank you for the pictures showing the diagnostic code output on the front of the system.  This definitely helps us decipher the code output that you're referring to.  

 

From the pictures below, it appears that you're getting the following diagnostic error code: "temp t240".  According to the diagnostic error code lookup table, this error code is a "Memory Thermal Error".  You can always look this up yourself by going to the following link, https://www.thinkworkstationsoftware.com/index.html?view=codes, and typing in "t240". 

 

A couple things to check:

 

1.  Make sure the memory DIMM fans are both properly installed and plugged in to the necessary headers on the motherboard.  A simple picture of the inside of your system should help us verify this is correct. 

 

2. When the system gets this error code, is the system running any type of stress/load or is the system simply at an idle state? 

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11 Posts

01-28-2021

United Kingdom of Great Britain and Northern Ireland

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  • Message 7 of 24

Re:ThinkStation P620 Diagnostic Codes Deciphering

2021-02-06, 19:29 PM

Thanks mebsterbball

 

Well I tried removing all DIMM modules and running the PC with one at a time after diagnostics.  In all cases there were no errors and no change to the LED warning flashing.

I then removed an Aorus PCI WIFI card that I had fitted. After removing the card the temperature error messages went away! Model is GC-WBAX200 https://www.gigabyte.com/uk/Motherboard/GC-WBAX200-rev-10#kf.

I have now tried fitting the card in three slots: 2,5,6. I get the temperature warning t240 evereytime and it only goes away when I remove the card from the system. Do you have any suggestions? Is it safe to use the card? I can't believe it is producing more heat than any of the other devices on the motherboard. The Gigabyte website lists new drivers dated 28 January 2021 but these did not remove the error message. The system is under no stress - I have not started using it yet. I am not copying any files by WIFI and have only used the Bluetooth.

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1097 Posts

01-14-2014

United States of America

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Re:ThinkStation P620 Diagnostic Codes Deciphering

2021-02-08, 16:04 PM

It sounds like you have this narrowed down to the unsupported Aorus PCIe Wifi card. I'm actually surprised by this as the temp error t240 is specifically referencing a "memory thermal error".  The fact that the temp t240 error message goes away whenever you remove the unsupported wifi card likely tells me that the temp t240 error isn't necessarily tied to just memory thermal errors.  Does the temp t240 error display almost immediately upon powering on the system with the wifi card installed? Or, how long does the system take from power on to display the temp t240 error? 

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11 Posts

01-28-2021

United Kingdom of Great Britain and Northern Ireland

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Re:ThinkStation P620 Diagnostic Codes Deciphering

2021-02-08, 16:21 PM

The warning does not flash when the pc is booted up. Then it is blank. It starts flashing 'after' shutdown, when the pc should be powered off. I assumed that is how it is supposed to work?

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1097 Posts

01-14-2014

United States of America

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Re:ThinkStation P620 Diagnostic Codes Deciphering

2021-02-08, 17:59 PM

So, from your last comment, it sounds like the temp t241 error only comes on when you shutdown the system.  Can you please confirm if the memory DIMM fans are installed correctly on the motherboard? If you could provide a simple screenshot of the inside of the system, we should be able to help verify that as well.  

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