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wikati

Crack Shack Ram Removal.

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the method using a pin and a soldering iron that floats around the net is unsustainable.
i recently acquired a couple dead boards and one of them has samsung ram which my 1.2 had stolen from the bottom when i upgraded my 1.1 and ran out of new parts.

so i said screw it im gonna put the 2 i need on this board.

this is a way better homebrew than the pin.
i made a small 'puller' out of a very thin piece of wire (the type thats inside of cheap cheap twist ties you get for the garbage bags.

5aaee739d611a_rampuller.jpg.21f35f6e0115f597e5fd278f0951ccc2.jpg
twisting the loop over top adds a subtle tension to keep hold of the chip. lots of flux applied to pins (not applied in this pic)
each end is bent over and tucked under the row of pins, use a small enough gauge wire you arent jamming it in.

heated slowly on low setting with a cheap heat gun (the econo brand heat gun)
then one good blast at high once warmed up and it pulled right off.

lots of movement of the gun and very delicate pressure when pulling.
beautiful.
they laid down on the other board with ease
tack the corner on X & Yaxis,
then line up pins and do another x & y. then just apply slight pressure with finger on chip and hit each pin with the iron.

the unit fired right up.
this solution originally came from removing a botched install.... removing i didnt want to accidentally scrape one of those small caps/resistors off. and i had already made a decision that hot air had to be the solution to removing these.

handling the chip becomes most important once the solder goes molten.

20180318_183738.mp4

removed ram.jpg

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Board Life Status


Board startup date: April 23, 2017 12:45:48
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    • By wikati
      Curious question
      in a furious rush i harvested 2 ram chips off a working board, now id like to re-install these and get it working again because as far as i can remember this unit worked just fine prior.
      the replacement ram came from a friend with a broken console. one chip had 2 twisted pins which laid down pretty nice with gentle persuasion. 
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      there are no bridges on the install and contact is made on each pad as far as continuity is concerned.
    • By wikati
      Friday night i got home excited to try a ram upgrade
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      Please login or register to see this link.
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      luck is funny.
      Please login or register to see this link.
      After examining the pinout of the chip i realized the center pins of the right and left side are named N.C..... what could that be? is it possible thats pin for the pad that lifted??
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      Just yonder a warm optimism drags me back into the basement.
       
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      YES!!!
       
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      so i can either replace the 2 and call it a day..... or...... order 6 and spend another 12 hours hunched over a 17 year old game console..... i think i'll take the latter.
    • By shoe.
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