The IBM T42 with the ATI video chip is known for BGA failure of the video chip. I wouldn't suggest buying another board because of that. I would either attempt to repair it yourself or buy another system. If you fail at the repair then you really aren't out much and you will need a new system. If the Tech you took it too fails at it then you are out the repair cost and still will need a new system. If you decide to give repairing it a try [http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-46464|here is a link to the service/hardware manual.] It contains the teardown procedures and will show you where the video chip is. Here is a [http://www.youtube.com/watch?v=vR8L3B3eDr0|video of a T41 motherboard being reflowed.] I did not see the guy put flux around the video chip in this video. But it is mentioned about flux flowing and flux activation. I would suggest using a "no clean flux" and putting it all around the chip on the motherboard, getting it as close as possible. One of the biggest causes of "back yard" reflowing not working and/or lasting people not using flux to remove the contaminates on the BGA under the chip. If you decide to do the repair write down the timings this guy is suggesting as a guide. I would also suggest you get an IR thermometer to be sure your chip hits about 215*C but doesn't exceed 220*C. Good luck!
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The IBM T42 with the ATI video chip is known for BGA failure of the video chip. I wouldn't suggest buying another board because of that. I would either attempt to repair it yourself or buy another system. If you fail at the repair then you really aren't out much and you will need a new system. If the Tech you took it too fails at it then you are out the repair cost and still will need a new system. If you decide to give repairing it a try [http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-46464|here is a link to the service/hardware manual.] It contains the teardown procedures and will show you where the video chip is. Here is a [http://www.youtube.com/watch?v=vR8L3B3eDr0|video of a T41 motherboard being reflowed.] I did not see the guy put flux around the video chip in this video. But it is mentioned about flux flowing and flux activation. I would suggest using a "no clean flux" and putting it all around the chip on the motherboard, getting it as close as possible. One of the biggest causes of "back yard" reflowing not working and/or lasting is because of people not using flux to remove the contaminates on the BGA under the chip. If you decide to do the repair write down the timings this guy is suggesting as a guide. I would also suggest you get an IR thermometer to be sure your chip hits about 215*C but doesn't exceed 220*C. Good luck!
The IBM T42 with the ATI video chip is known for BGA failure of the video chip. I wouldn't suggest buying another board because of that. I would either attempt to repair it yourself or buy another system. If you fail at the repair then you really aren't out much and you will need a new system. If the Tech you took it too fails at it then you are out the repair cost and still will need a new system. If you decide to give repairing it a try [http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-46464|here is a link to the service/hardware manual.] It contains the teardown procedures and will show you where the video chip is. Here is a [http://www.youtube.com/watch?v=vR8L3B3eDr0|video of a T41 motherboard being reflowed.] I did not see the guy put flux around the video chip in this video. But it is mentioned about flux flowing and flux activation. I would suggest using a "no clean flux" and putting it all around the chip on the motherboard, getting it as close as possible. One of the biggest causes of "back yard" reflowing not working and/or lasting people not using flux to remove the contaminates on the BGA under the chip. Good luck!
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The IBM T42 with the ATI video chip is known for BGA failure of the video chip. I wouldn't suggest buying another board because of that. I would either attempt to repair it yourself or buy another system. If you fail at the repair then you really aren't out much and you will need a new system. If the Tech you took it too fails at it then you are out the repair cost and still will need a new system. If you decide to give repairing it a try [http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-46464|here is a link to the service/hardware manual.] It contains the teardown procedures and will show you where the video chip is. Here is a [http://www.youtube.com/watch?v=vR8L3B3eDr0|video of a T41 motherboard being reflowed.] I did not see the guy put flux around the video chip in this video. But it is mentioned about flux flowing and flux activation. I would suggest using a "no clean flux" and putting it all around the chip on the motherboard, getting it as close as possible. One of the biggest causes of "back yard" reflowing not working and/or lasting people not using flux to remove the contaminates on the BGA under the chip. If you decide to do the repair write down the timings this guy is suggesting as a guide. I would also suggest you get an IR thermometer to be sure your chip hits about 215*C but doesn't exceed 220*C. Good luck!
The IBM T42 with the ATI video chip is known for BGA failure of the video chip. I wouldn't suggest buying another board because of that. I would either attempt to repair it yourself or buy another system. If you fail at the repair then you really aren't out much and you will need a new system. If the Tech you took it too fails at it then you are out the repair cost and still will need a new system. If you decide to give repairing it a try [http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-46464|here is a link to the service/hardware manual.] It contains the teardown procedures and will show you where the video chip is. Here is a [http://www.youtube.com/watch?v=vR8L3B3eDr0|video of a T41 motherboard being reflowed.] I did not see the guy put flux around the video chip in this video. But it is mentioned about flux flowing and flux activation. I would suggest using a "no clean flux" and putting it all around the chip on the motherboard, getting it as close as possible. One of the biggest causes of "back yard" reflowing not working and/or lasting people not using flux to remove the contaminates on the BGA under the chip. Good luck!