Southbridge chip location

two-dogs1

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I have a Toshiba laptop I have taken the Motherboard out and would like someone to point out the southbridge chip on it. The board is a DA0BDBMB8F0 A000241250 and need someone to show me in a picture..........thanks..........Larry
 

SoggyTissue

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the most likely southbridge location is here:


the big black square pcb with smaller black chip housing in center, at the bottom of the board.

i believe the multi pin square to be the north/south bridge.

i cannot say for certain, the quality of the picture does not allow me to identify it 100%, theres no detailed pictures for me to see to be sure.

i hope this helps you in what youre trying to do.
 

two-dogs1

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Answering your question the reason why is that I was thinking about buying a MB with a bad southbridge chip in it and wanted to know how hard it would be to replace. So if a seen where it is on the board that would give me an idea of how difficult it would be. My motherboard burns my finger if I touch the black (ba2511) chip next to the power supply plug. Also no power to any of the capacitors and was hoping to get by cheap..........
 

two-dogs1

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Adept thanks for the info but that just shows me a SB, I need to know where it is on my board. Like I said it is a DA0BDBMB8F0 A000241250 motherboard I need the location on that ...........thanks...........two-dogs
 

Kasper Jorgensen

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Well, you will have to be an expert in soldering if you are going to replace that.
 

getochkn

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It will be a BGA chip, so you will need a BGA reflow station to remove the chip, stencil for the replacement and appropriate sized solder balls to re-ball the new chip. Not an easy job for even an expert as it's easy to lift a trace or solder pad. Even a few degrees difference can screw things up.
 
Rather than replacing the SB chip, buy a used MB on ebay. $50. (Aside Soggy -- The picture you post is EXACTLY what I thought was a DA0BDBMB8F0 A000241250 based on web searches, and I'd had the same guess on which was the SB)
 

two-dogs1

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Ok it looks like changing out a SB chip is out, one more question and to most it might be a silly one but here it goes. Can you use a 19 volt computer power supply to check a 5 volt computer fan or will it burn it up immediately?.....The reason why I asked this question, is a made some pins to go into the fan connector and after adding power to the fan it momentarily spun and then nothing, actually it just moved the blades for just a split second....please educate ....thanks....two-dogs
 

Kasper Jorgensen

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No you cannot do that. A 5V fan will break down at 19V. Also normal desktop computer fans are 12V.
 

two-dogs1

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This is not a desktop computer and on the motor it says 5 volts .............just saying. So just that split second you think burnt it up?
 

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