1 Rookie

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12 Posts

December 11th, 2021 11:00

Perfect, I’ll order one. 

thanks 

10 Elder

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30.6K Posts

December 11th, 2021 11:00

10 Elder

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30.6K Posts

December 11th, 2021 12:00

Something caused that chip to fail in the first place -- and that's likely not the only part that's bad.  Just realize that before you replace the chip and then find out you either need more components, or need to replace the system board.

 

10 Elder

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30.6K Posts

December 11th, 2021 15:00

A short to ground somewhere would be the prime suspect in blowing up a chip -- unfortunately, finding one (assuming the existing board is not working) requires quite a bit of trial and error.

It could still be that chip is what failed, for whatever reason -- but it's also very possible that when it failed, other components did as well.  

It's all trial and error -- you may also want to see if you can purchase schematics for the board.  And of course, no repair is going to be possible unless you have a surface mount rework station at your disposal, whether that ultimately requires replacing just that chip, or that one plus others.

There's a reason why most repair shops won't undertake mainboard repair other than when it's either a known issue that's well worked out in terms of a solution, or where the repair has a chance of being done without hours of troubleshooting -- it doesn't take long for the cost of repair to exceed the cost of a board replacement.

And that's not even factoring in finding the replacement part(s) -- which, unless you live in Southeast China, is very often as challenging as figuring out what needs to be replaced.

 

1 Rookie

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12 Posts

December 11th, 2021 15:00

  • Ok, kind of new to fooling with these boards, would their be any obvious culprits?. 
    thanks 

1 Rookie

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12 Posts

December 11th, 2021 16:00

Thanks. Yeah,  my kids could have. 
I will check it out. 


thanks again. 

4 Operator

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6.2K Posts

December 11th, 2021 16:00

Welcome to the Dell Community @d11webb11b 

That is your 10/100/1000Base-T.

Look in the Ethernet port and make sure there are no crossed pins!

Have you tried to attach a cable to the port recently?

Best regards,

U2

1 Rookie

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12 Posts

December 11th, 2021 16:00

Lol yeah, not that easy these days. Was hoping it was a common issue, but that doesn’t seem to be the case. Everything else on the board seems perfect, I read somewhere else it could have been plugged into a lan port that’s was passive poe?. But who knows. 

1 Rookie

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12 Posts

December 12th, 2021 05:00

the pins look fine, maybe it was just the chip itself?.

could the chip be bad?.

10 Elder

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30.6K Posts

December 12th, 2021 05:00

Let's step back:  exactly what is the issue?  Is it just one function that does not work, or is it that the system does not power up?

4 Operator

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6.2K Posts

December 12th, 2021 05:00

@d11webb11b 

Yes, best case is that just the chip failed and has not caused any further damage to the system board.

CL 30 is a "Cap" for power to the NS6924.

I cannot find the schematics for your model but the M17 R4 Ethernet circuitry is close.

M17 4R ethernet.PNG

To be safe, make sure not to plug anything into the RJ/45 "Ethernet" port.

Best regards,

U2

1 Rookie

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12 Posts

December 12th, 2021 10:00

Oh sorry, The power will not come on at all. The power is coming from the adapter, but no power on the laptop. 

1 Rookie

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12 Posts

December 12th, 2021 10:00

Ok, thanks. 

10 Elder

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30.6K Posts

December 12th, 2021 10:00

If that's the case, you can try the experiment of replacing the clearly faulty chip -- if you have the equipment to do the job (i.e., a hot air rework station).  Don't try to use a soldering iron -- that route is likely to result in a damaged board even if it's just the chip that's bad now.

 

1 Rookie

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12 Posts

December 12th, 2021 11:00

Ok, we’ll I don’t have one. But I’am gonna have to find someone that does, and see if I can get it done. I’ll let you guys know. 

thanks again

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