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The Socket 939 Appreciation Club and Knowledgebase [Official] - Page 2826

post #28251 of 28750
Quote:
Originally Posted by zila View Post

Gotcha. You just take care of that beautiful family of yours. biggrin.gifthumb.gif

Will do brother! Hopefully all is good by you! I should give you a call sometime. We need to do this beer at lunch time deal! biggrin.gif
post #28252 of 28750
Getting ready to try something rather crazy yet it's possible I may be able to pull off a miracle of sorts.

I have a 165 that was damaged by me redface.gif when I tried delidding it years ago, the chip still works but with certain benchies like Super PI and WPrime it just wigs out all over the place, with things like PI Fast and Cinebench it works just fine.

Of course I did nick a few of the transistors/resistors on it's surface and that's the problem, I'll be trying to replace those tomorrow and see if I can do it or not. Have a donor chip ready and I don't really care so much if the chip survives the operation, I have another one and this one is all but useless as is.

I'll let you guys know if it survives the procedure or not once done and tested. biggrin.gif

EDIT:
The pieces I needed came off intact and wasn't that bad to do BUT noted I may have to reball the CPU itself. When I removed the bad pieces from the CPU I believe some of the solder came off with these and there isn't enough left for anything to solder to. These CPUs use a higher temp solder that's also a harder solder so it takes some heat to melt it. Didn't help that the damaged pieces came off in pieces too and had to heat and scrape these leftovers off the chip, the ones from the donor chip came off intact as said no prob.
I'm in no hurry to do this if it can be done at all, I'll just take my time with it and see what happens.
Edited by Kryton - 10/3/16 at 8:03am
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post #28253 of 28750
Quote:
Originally Posted by Kryton View Post

Getting ready to try something rather crazy yet it's possible I may be able to pull off a miracle of sorts.

I have a 165 that was damaged by me redface.gif when I tried delidding it years ago, the chip still works but with certain benchies like Super PI and WPrime it just wigs out all over the place, with things like PI Fast and Cinebench it works just fine.

Of course I did nick a few of the transistors/resistors on it's surface and that's the problem, I'll be trying to replace those tomorrow and see if I can do it or not. Have a donor chip ready and I don't really care so much if the chip survives the operation, I have another one and this one is all but useless as is.

I'll let you guys know if it survives the procedure or not once done and tested. biggrin.gif

EDIT:
The pieces I needed came off intact and wasn't that bad to do BUT noted I may have to reball the CPU itself. When I removed the bad pieces from the CPU I believe some of the solder came off with these and there isn't enough left for anything to solder to. These CPUs use a higher temp solder that's also a harder solder so it takes some heat to melt it. Didn't help that the damaged pieces came off in pieces too and had to heat and scrape these leftovers off the chip, the ones from the donor chip came off intact as said no prob.
I'm in no hurry to do this if it can be done at all, I'll just take my time with it and see what happens.

Nice, I've only done pin traces on cpu's. Take pics.
post #28254 of 28750
Quote:
Originally Posted by Kryton View Post

Getting ready to try something rather crazy yet it's possible I may be able to pull off a miracle of sorts.

I have a 165 that was damaged by me redface.gif when I tried delidding it years ago, the chip still works but with certain benchies like Super PI and WPrime it just wigs out all over the place, with things like PI Fast and Cinebench it works just fine.

Of course I did nick a few of the transistors/resistors on it's surface and that's the problem, I'll be trying to replace those tomorrow and see if I can do it or not. Have a donor chip ready and I don't really care so much if the chip survives the operation, I have another one and this one is all but useless as is.

I'll let you guys know if it survives the procedure or not once done and tested. biggrin.gif

EDIT:
The pieces I needed came off intact and wasn't that bad to do BUT noted I may have to reball the CPU itself. When I removed the bad pieces from the CPU I believe some of the solder came off with these and there isn't enough left for anything to solder to. These CPUs use a higher temp solder that's also a harder solder so it takes some heat to melt it. Didn't help that the damaged pieces came off in pieces too and had to heat and scrape these leftovers off the chip, the ones from the donor chip came off intact as said no prob.
I'm in no hurry to do this if it can be done at all, I'll just take my time with it and see what happens.

Do you have a high temp iron? 45watt should rip into it no problems.

I second pictures... Pics or it didnt happen.
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post #28255 of 28750
Took some pics before and after removing the bad pieces. biggrin.gif

I have a 70W iron with my station and a desoldering wand (Air) and the wand what I used to get the pieces off with. I'll also be forced to use air for resoldering since the legs of the pieces I need to solder back on are so tiny - You'd literally need a needle tip to do this with otherwise.

Carefully hold the piece in place with a small/miniature screwdriver, apply the heat and let the heat do it's thing, that's how I did the resistors on the AN7's I fixed a few weeks ago and it all worked great.
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post #28256 of 28750
Tightly bend a copper paper clip around the soldering irons tip. This way you get your "needle soldering iron"- Cheap yet efficient
 
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post #28257 of 28750
I was thinking along those lines earlier but don't have any paperclips like that - However I do have plenty of smaller gauge copper wire that I can get what I need to try it with.

However I still believe using air would be the way to at least try it with, I can try it with wire as suggested if that fails.

These pics are kinda blurry since my camera isn't that good for up close pics but here they are.

Chip pic:


The setup for work to begin - Note I haven't removed anything from the chip at this point:


After I began removing these damaged pieces from the bottom left as shown:


I will have to do some fenagling to make this work if it will at all, this is purely experimental in nature guys and perhaps it will work but again but if it doesn't I haven't really lost anything that matters too much.
Edited by Kryton - 10/5/16 at 12:24pm
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post #28258 of 28750
I'd grab a socket off of an old board to pop in the vise.
post #28259 of 28750
I have it on the heatsink to help draw off any excess heat that may cause the pins themselves to fall off.
It works as I have it and believe if it's gonna work that is the way I'll have to do it. Already considered using a socket from a board but that could easily melt since it's plastic.
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post #28260 of 28750
Quote:
Originally Posted by Kryton View Post

I have it on the heatsink to help draw off any excess heat that may cause the pins themselves to fall off.
It works as I have it and believe if it's gonna work that is the way I'll have to do it. Already considered using a socket from a board but that could easily melt since it's plastic.

That plastic has a very high thermal quotient. I'm not sure what but it won't melt from transfer.
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