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Methods to fix a cold-solder RAM brick?

post #1 of 13
Thread Starter 
I've currently isolated the problem afflicting my 2005 model xbox 360, front Ram brick underneath the GPU heatsink has a cold-solder issue, though I think there is an error tied to it that doesn't match.

3RROD - 0013, which is RAM overheating, which obviously isn't happening since it won't start =P...

Applying a large amount of pressure to the chip I got mixed results, and managed to get it to start twice now, first time without a heatsink sitting on the gpu... bad idea I tell you I shut it off right after it started to do the ring, I was curious so I touched it lightly, that thing must have been at least 100C. >_>...
Just put the GPU heatsink on sideways this time but still not enough to get a test.


My question is though, how can I fix this easily?

I wasn't sure the melting temp of silicone chip, and if I could say place a penny on top and heat the board up a bit with a hairdryer then use a soldering gun to heat the penny to apply heat to the RAM.
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post #2 of 13
Wy not just bake the entire board in the oven @ 285 for 10 minutes or you can always do the same with a heatgun. Ive done both methodes with success.
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post #3 of 13
just bake it.
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post #4 of 13
Fry it up and eat it for dinner!
post #5 of 13
Take the board out and wop it in the oven for 10 @ 285.
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post #6 of 13
Thread Starter 
ok ok, got a suggestion from a different forum that won't get me baking the board quite yet.

Though at this point I'm sure that'd work too.

Just told me to get some Liquid Flux (x.x don't have that but I intelligently disolved the tiny bit that isopropanol I have, and used that to get the flux under the chip, small amount of heat evaporated the alcohol leaving flux just not sure if I did the solder right)

I had 2 pennies stacked on top and got a bit startled when all the flux all of the sudden spilled out from under the IC, and stopped figuring that was enough, SO pugged it all back in and what do you know green lights?

Too soon I guess though, I had terrible artifacts right off the bat and then shut down and restarted to meet a 0020 3RROD error, which is linked to RAM cold/bridged solder.

So guess either the flux I put down that also went under the second RAM chip which i didn't heat is bridging or I didn't heat enough, the flux did not boil it just was able to liquefy.
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post #7 of 13
Thread Starter 
I think I officially killed it, so last resort is going to be baking it see if that fixes it =P...

After last treatment, went back to red rings, more heat on Ram this time, seemed to reflowed it but not sure if something went wrong, As I was trying to diagnose the red light code it shut down and wouldn't respond, red-light on PSU.

After unplugging and replugging a few times managed to get it to sort of respond again, this time seems to be some sort of short or something in the boot system, as it will after plugged in randomly boot to red rings, and reboot shortly after with absolutely no response to Sync/Eject or Power button >_>... So I can't read off the code and I can't turn it on or off at will. Interesting enough though it is powering the console and heating up GPU etc still.

So... when I get some free time gonna look up a good full baking guide and set her to broil =D

If that doesn't work, either going to see what Xbox 360's that are toast go for, ones that have zero chance =D... that or Imma make a dog chain of the GPU and CPU
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post #8 of 13
Quote:
Originally Posted by 4LC4PON3 View Post
Wy not just bake the entire board in the oven @ 285 for 10 minutes or you can always do the same with a heatgun. Ive done both methodes with success.
Quote:
Originally Posted by ghost55 View Post
just bake it.
Quote:
Originally Posted by The_Rocker View Post
Take the board out and wop it in the oven for 10 @ 285.
Bad Idea as far as Baking goes. I repair 8-10 consoles a week, and baking is NOT the way to go.

OP, if you don't have access to a Reflow Station, get a dual temp heatgun and some NO-CLEAN LIQUID FLUX. Flux the chips, insulate the Capacitors, cover the rest of the board with Foil.

Then, Heatgun the areas moving in small circles around the exposed board. 3 Minutes on LOW, then 45 seconds on HIGH. Let it cool for about 35-40mins and reassemble. That's the best alternative I can give you, and it's what I used to do until I purchased my Reflow Station.

Good luck!

EDIT - You should move in small quick circles around the exposed areas, and have the heatgun about 1 to 1-1/2 inches from the board.

If you have any other questions, feel free to PM me. I've done literally HUNDREDS of Xbox repairs.
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post #9 of 13
Thread Starter 
Quote:
Originally Posted by arbalest View Post
Bad Idea as far as Baking goes. I repair 8-10 consoles a week, and baking is NOT the way to go.

OP, if you don't have access to a Reflow Station, get a dual temp heatgun and some NO-CLEAN LIQUID FLUX. Flux the chips, insulate the Capacitors, cover the rest of the board with Foil.

Then, Heatgun the areas moving in small circles around the exposed board. 3 Minutes on LOW, then 45 seconds on HIGH. Let it cool for about 35-40mins and reassemble. That's the best alternative I can give you, and it's what I used to do until I purchased my Reflow Station.

Good luck!

EDIT - You should move in small quick circles around the exposed areas, and have the heatgun about 1 to 1-1/2 inches from the board.

If you have any other questions, feel free to PM me. I've done literally HUNDREDS of Xbox repairs.

Can you give me an idea what I posted above is all about =)? I fried something I'm sure this time.
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post #10 of 13
Quote:
Originally Posted by arbalest View Post
Bad Idea as far as Baking goes. I repair 8-10 consoles a week, and baking is NOT the way to go.

OP, if you don't have access to a Reflow Station, get a dual temp heatgun and some NO-CLEAN LIQUID FLUX. Flux the chips, insulate the Capacitors, cover the rest of the board with Foil.

Then, Heatgun the areas moving in small circles around the exposed board. 3 Minutes on LOW, then 45 seconds on HIGH. Let it cool for about 35-40mins and reassemble. That's the best alternative I can give you, and it's what I used to do until I purchased my Reflow Station.

Good luck!

EDIT - You should move in small quick circles around the exposed areas, and have the heatgun about 1 to 1-1/2 inches from the board.

If you have any other questions, feel free to PM me. I've done literally HUNDREDS of Xbox repairs.
I could care less if you fix 8-10 consoles per week to be honest. Ive done my share of fixing myself due to having a ton of red ringed consoles myself. There is nothing wrong with Baking a board ive done it currently to my eite & that was around 8 months ago & no issues at all.

Who wants to go out and purchase equipment when you can do it free in your oven
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