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Just baked my laptop motherboard and copper shimmed the gpu

post #1 of 10
Thread Starter 
I have (not actually mine but a family members) a HP DV2000 series laptop that has soldering issues.. to say the least.

The video died, big surprise there.. but anyway I just baked the motherboard at 400 f in the oven for 10min, let it cool, then re-built the laptop and used AS5 and a copper shim on the GPU.

anyone had experience with these re-flows over extended period of time? I know that these laptops are notorious for these issues and I know generally a re-flow will only net you limited use, but I did add a copper shim/ extra large that acts as a mini heat sink..

I fired the laptop up and the Nvidia GPU is idleing at 55c with win 7 and AERO off. I told them to leave aero off when I got them the laptop in the first place.. but you know people never listen - and think oh this looks neat who cares if someone told me not to run it....

I do think that windows 7 AERO did in fact contribute to this re-flow. I know that a real fix would be to get it BGA re-balled but that costs more money than my broke ass has. Plus its not even my laptop...

P.S. I did use AS5 on both sides of the shim - to the HS and to the GPU, I am not an idiot that just throws copper onto delicate chip surfaces unprotected - I used a rubber.. er I mean thermal compound for protection.
Edited by Killam0n - 7/14/11 at 12:33pm
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post #2 of 10
So... What are you asking exactly? biggrin.gif
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post #3 of 10
Thread Starter 
mostly: anyone had experience with these re-flows over extended period of time?

I really want this laptop to not re-break but whats the odds of that? should I just get rid of it?
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post #4 of 10
reflows of that caliber won't hold up forever. Maybe 3 months, a day, next 30 seconds. who knows. HP was totally screwed by Nvidia since we all know the DV series was plagued by bad nvidia gpu chips and they didn't want to be held 100% responsible. But I digress...

Reflowing might work for a little while, or you may get lucky and it may work until you buy a new laptop! In my personal expereince, a BGA reflow is much more effective.
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post #5 of 10
Well they can vary, I've heard and seen some last for years. But I have also seen a couple where it only lasted a few months.

Its hard to judge as you can't really see how well the solder flowed and all. And always the fact of thermal cycling as a constant doesn't help those laptops.
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post #6 of 10
Well if this counts for anything when I use to fix Xbox 360's with the RRoD and the standard fix wouldn't work, I would have to reflow the board. But I only used my oven once and that xbox only lasted a few more months.

I did however find better results with a heat gun.. Just wrap up the parts you don't want to get hot, and even out the heat with the heat gun. IMO you have a better control of where the heat is going with a heatgun and it can produce better results if done correctly.


BUT... If you have to "bake" it again, why don't you try a heat gun? Then if that fails, bake it in the oven again and see if it'll work. If not, trash it!
 
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post #7 of 10
Quote:
Originally Posted by Dustin1;14215373 
Well if this counts for anything when I use to fix Xbox 360's with the RRoD and the standard fix wouldn't work, I would have to reflow the board. But I only used my oven once and that xbox only lasted a few more months.

I did however find better results with a heat gun.. Just wrap up the parts you don't want to get hot, and even out the heat with the heat gun. IMO you have a better control of where the heat is going with a heatgun and it can produce better results if done correctly.


BUT... If you have to "bake" it again, why don't you try a heat gun? Then if that fails, bake it in the oven again and see if it'll work. If not, trash it!

True as well. I have also fixed Xbox 360's and PS3's with a heatgun, but those only last a limited time too.
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post #8 of 10
55c idle is pretty good for a gpu imo.. my baked laptop gpu used to run at 64c idle and it was perfectly fine for 3 months. Then I gave it to my dad and built my sig rig. And it still runs pretty good.

PS: My dad games a lot on the laptop.
post #9 of 10
Quote:
Originally Posted by Killam0n;14215138 
The video died, big surprise there.. but anyway I just baked the motherboard at 400 f in the oven for 10min, let it cool, then re-built the laptop and used AS5 and a copper shim on the GPU.

I ist heard of baking stuff like this a few days ago, surprised that things like capacitors don't get messed up
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post #10 of 10
Reflowed a Toshiba laptop my dad uses in the living room after replacing fan and tim. Replacing the fan and tim, it'd last 24/7 use for 2-3 days before starting to mess up hourly unless it sat off for a day. After the reflow, no shim, it's fine for 24/7 use as long as aero is off. It's been 6+ months since. I expect it to last about another 6 months before it starts dying again and needs to be put in the closet for parts.
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