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No Display in ASUS PC Solved

By on September 13, 2014

 

 

 

 

 

 

 

 

 

 

A PC was brought in by a fellow-worker to my workshop because it was having a strange behavior (it was very slow and hanging from time to time) and the owner told me I had to reinstall the Operating System.

When I switched-ON the PC, it had no Display, so the job was not only Operating System re-installation.

First of all the PC was disassembled and the voltages from SMPS were checked.

no display in pc repair

As we can see from the photos above the outputs from SMPS were ok, so some other circuitry had to be checked, beginning with the following steps:

1. RAM memory: it was taken out and cleaned, but trouble continued.

no display in pc repairs

2. 8Mb BIOS: it was pushed downwards, to avoid any false contact, but trouble continued.

no display in pc repairing

3. Microprocessor: it was taken out and its contacts were cleaned but the trouble continued.

 nodisplayinpcrepair

4. SMPS: it was taken out from chassis, but before disassemble it I had the idea of seeing the voltage selector at the rear cover of the SMPS, and let’s see what I saw:

nodisplayinpcrepairs

The SMPS was selected for working with 230 volts (AC), and in my workshop I use only 110 volts (AC) so when I fixed this situation and switched-ON the PC the Motherboard (ASUS P5KPL-CM in this case) showed Display. But another curious item to take into account: as some circuitry had been cleaned previously, it was not necessary to re-install the Operating System, in other words, there was dust around the circuits which was causing the very slow behavior and the hangings too.

humberto

This article was prepared for you by Humberto Rodriguez, one of our ‘Master Authors’ from Cuba.

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8 Comments

  1. Robert

    September 13, 2014 at 2:20 pm

    Good job Humberto. Thanks for the article.

    Likes(1)Dislikes(0)
    • Humberto

      September 16, 2014 at 11:27 pm

      Thanks Robert.

      Likes(0)Dislikes(0)
  2. Raymundo Saura

    September 14, 2014 at 8:39 am

    thanks for sharing sir

    Likes(0)Dislikes(0)
    • Humberto

      September 16, 2014 at 11:33 pm

      Thanks Raymundo, you are welcome

      Likes(0)Dislikes(0)
  3. zed

    September 15, 2014 at 3:33 pm

    thanks for sharing. nice.

    Likes(0)Dislikes(0)
  4. Humberto

    September 17, 2014 at 12:17 am

    Thanks zed.

    Likes(1)Dislikes(0)
  5. Romeo J. Buagayan

    September 19, 2014 at 7:28 pm

    Hi Humberto,
    Thanks for sharing what you know about PC.Can you share me how to reformat PC and laptops?
    thanks again,
    Romeo

    Likes(0)Dislikes(0)
    • Humberto

      September 22, 2014 at 8:35 pm

      Well Romeo, there are differnt softwares like Partition Magic, Partition Wizard and etc that allow you to reformat the HDDs. The installation CDs/DVDs of Operating Systems have this option too.
      Have a good day.

      Likes(1)Dislikes(0)

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