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Motherboard Debug Card Found Faulty

By Jestine Yong on October 24, 2024

Three year back I ordered one Motherboard PCI Diagnosis card because I am having few bad OLD generation motherboards with me for repair.

For testing I connected this card on one of my non-working motherboard,

on triggering power this diagnosis card showing “00 00” code & I found in seven segment led display one led is not light up.

I removed card for further inspection, very few parts are installed on front side & on back side there is no components.

But when I turned back to solder side of the PCB….

I found many pins of seven segment LED Display are dry soldered.

Cleaned PCB using IPA.

Connected back on Motherboard for testing.

Now problem is resolved.

This article was prepared for you by Yogesh Panchal who works as a Computer Hardware Engineer in Mumbai India.

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Note: You can check his previous repair articles on 5V USB Adapter Repaired

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12 Comments

Parasuraman S

October 24, 2024 at 9:05 pm

That was a good job there, Yogesh Bai and thanks for sharing!

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- YogeshPanchal
  
  October 26, 2024 at 6:13 pm
  
  Thank you! Sir
  
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Waleed Rishmawi

October 24, 2024 at 11:56 pm

I am not familiar with such cards but I am glad it is up and running. Good job on the repair and have a blessed day

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- YogeshPanchal
  
  October 26, 2024 at 6:14 pm
  
  Thanks! Waleed
  
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Albert van Bemmelen

October 25, 2024 at 1:26 am

Glad that you still were able to fix and use your mainboard post error debug code (PCI slot?) tester.
Like you I also was able to use, find and solve a computer mainboard problem with a similar post-error-message-debug-card that was also published in Jestine's blog in the past.
After that I also ordered a bigger debug card but the problem with all these cards is that the post error message listings from mainboard manufacturers are often incomplete, wrong or even non existing and in that case any shown post error code unkown. My newest Post debug card even had a bluetooth connection and an Android app to lookup the error tables but even that app was incomplete and often quite useless. Luckily we now for instance also can use the RT809H nand reader to examine the address/databus and or vga ports of any mainboard although it requires a bit more knowledge of its user.

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- YogeshPanchal
  
  October 26, 2024 at 6:21 pm
  
  Albert,
  Yes, this is for PCI x16 Slot, But new generation Board stopped providing PCIx16 Slot they are providing PCI Express x1 slots & it required Different type of Connectivity. I am also having TL631 Pro but all debug cards are having limitations & compatibility issue with different make of Motherboard BIOS.
  
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Mark J

October 25, 2024 at 2:42 am

Yogesh good job on the repair.

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- YogeshPanchal
  
  October 26, 2024 at 6:21 pm
  
  Thanks! Mark J
  
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Imoudu.O

October 25, 2024 at 10:53 pm

Good repair, i wonder why a factory should produce such product...no quality control system department i guess(china product i suppose!)

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- YogeshPanchal
  
  October 26, 2024 at 6:23 pm
  
  Imoudu.O , Thanks!
  Yes,it is china make.
  
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Anwar Yunas Shiekh

October 26, 2024 at 11:08 pm

Nice easy fix

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YogeshPanchal

October 27, 2024 at 3:56 pm

Thanks! Anwar Yunas Shiekh

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