Aspire 5738z Motherboard works outside of laptop casing but not in?

hancor2
hancor2 Member Posts: 5 New User

Hope this is the right part of these forums...

 

Has anyone heard of this before. I (STUPIDLY) decided that my fan needed a good clean and in a moment of madness I took the heat sink off and cleaned it, I had no paste to renew with at the time but thought it would be ok.

 

Acer Aspire 5738Z Dedicated ATI Graphics Intel Core 2 Duo

 

I missed the fan plug when I re assembled the laptop and naturally it would not start. So after getting the cleaners and paste and PLUGGING the fan back in, I tried booting again..... Nothing doing apart from the fan runs and stops, then comes back on - the power light illuminates - the processor light comes on for a second - and the cd tried to run.

 

I did all the usual tricks like removing the Ram etc Hold power button and so on..... still no joy

 

So I stripped the motherboard out of the case and took everything off, I replaced the following only

 

HDD

1 x 2GB Ram

Monitor

Battery

 

And success It booted without a problem

 

I then tried restarts and they were fine so I put it all back together and nothing happened?.......

 

So I stripped it again and this time I connected everything

 

HDD

2 x 2GB Ram

CD/DVD

Monitor

Battery

WiFi

USB Mouse

USB Keyboard

 

Started it and again with no problems it started and rebooted endless times. So I removed all and placed into the base of the case and then reconnected it all and got the same good boot. I then placed the top section of the base on while it was running and it was fine, then I rebuilt around the running laptop until the unit was whole again... Still stayed running. Although my mouse pad wasn't working nor was the keyboard

Ok moment of truth.... Restart...... or rather not - back to the beginning with no boot

 

Does anyone have any clue as to the cause - I am wondering if the keyboard and or mouse may be at fault but for all I know it could be more sinister.

 

Any help would be fantastic - But please no suggestions of removing the ram and pressing the power button down as my finger aches from trying this lol

Best Answer

  • hancor2
    hancor2 Member Posts: 5 New User
    Answer ✓

    It would appear to be the connection for the right side USB unit that is at fault. I have rebuilt the laptop but removed the cable for the USB and it works fine...... So looks like problem solved      For now anyway

Answers

  • hancor2
    hancor2 Member Posts: 5 New User

    Hmmmm Update

     

    Just opened the casing again and tried removing bits as I go, botted when i removed the right side USB ports (seperate unit plugs into MB by CMOS battery??

     

    Could this be my culprit?

     

     

  • hancor2
    hancor2 Member Posts: 5 New User
    Answer ✓

    It would appear to be the connection for the right side USB unit that is at fault. I have rebuilt the laptop but removed the cable for the USB and it works fine...... So looks like problem solved      For now anyway

This discussion has been closed.