LPC BUILD PROBLEMS 1.6 Motherboards
Symptoms are various but can include frags , no 3.3V Led, Blank after flash yet flashbios displayed (this was the case for the two brought to me)
See also http://www.teamxecuter.com/index.php?name=Forums&file=viewtopic&t=28060
Check all your connections and consider below.
Xbox solder pads are Thru-Hole plated.
This means there is a physical/electrical connection between the top and bottom of the mother board via these holes.
These plates connect tracks together on either side of the cct board and transfer the electrical connection to the opposite side of the board.
I have now seen two Xbox’s where the thru-hole plates have been damaged by the action of clearing out the holes to accept the LPC Header.
(Usually poking something thru it whilst heating it or over heating).
Therefore although the solder joint looked good on the reverse there is no electrical connection to the track on the other side of the motherboard.
NOTE:- To evacuate the pads use a good solder pump or solder wick and do not use a big, high wattage iron.
When using a wick remove both the iron and the wick from the board at the same time. It is very easy for the heat sink effect of the wick to rapidly cool the solder with the result being the wick sticks to the pad pulling it away from the board.
Solution.
Option 1 requires some solder skill and care especially levering up the black plasic, option 2 is easier but a bit more untidy to look at.
Also if the pad has gone along with the thru-hole plate then only option 2 is gonna fix it.
(1) In both of these cases I was able to ease up the black plastic frame on the pin header by carefully levering it with a small flat blade screwdriver between pins 10 & 12 / 11 & 13. (there are no tracks under the plastic here so there is little chance of further damaging the board.Do not just ram the screwdriver in there and lever away
Once raised high enough I then very carefully top soldered pins 5, 13, 14 & 15 and when cool pushed back down the black plastic on the header.
There is no need to solder any other pins on top as there are no other tracks to the top side of the LPC header
(2) An alternative safer method is to attach a wire to each of the four pins on the bottom of the cct board and bring these out on to the top of the Xecuter3 and solder them directly to the respective points on the X3 chip header socket.
If i get any more i'll do one this way and take some photo's
Symptoms are various but can include frags , no 3.3V Led, Blank after flash yet flashbios displayed (this was the case for the two brought to me)
See also http://www.teamxecuter.com/index.php?name=Forums&file=viewtopic&t=28060
Check all your connections and consider below.
Xbox solder pads are Thru-Hole plated.
This means there is a physical/electrical connection between the top and bottom of the mother board via these holes.
These plates connect tracks together on either side of the cct board and transfer the electrical connection to the opposite side of the board.
I have now seen two Xbox’s where the thru-hole plates have been damaged by the action of clearing out the holes to accept the LPC Header.
(Usually poking something thru it whilst heating it or over heating).
Therefore although the solder joint looked good on the reverse there is no electrical connection to the track on the other side of the motherboard.
NOTE:- To evacuate the pads use a good solder pump or solder wick and do not use a big, high wattage iron.
When using a wick remove both the iron and the wick from the board at the same time. It is very easy for the heat sink effect of the wick to rapidly cool the solder with the result being the wick sticks to the pad pulling it away from the board.
Solution.
Option 1 requires some solder skill and care especially levering up the black plasic, option 2 is easier but a bit more untidy to look at.
Also if the pad has gone along with the thru-hole plate then only option 2 is gonna fix it.
(1) In both of these cases I was able to ease up the black plastic frame on the pin header by carefully levering it with a small flat blade screwdriver between pins 10 & 12 / 11 & 13. (there are no tracks under the plastic here so there is little chance of further damaging the board.Do not just ram the screwdriver in there and lever away
Once raised high enough I then very carefully top soldered pins 5, 13, 14 & 15 and when cool pushed back down the black plastic on the header.
There is no need to solder any other pins on top as there are no other tracks to the top side of the LPC header
(2) An alternative safer method is to attach a wire to each of the four pins on the bottom of the cct board and bring these out on to the top of the Xecuter3 and solder them directly to the respective points on the X3 chip header socket.
If i get any more i'll do one this way and take some photo's