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Duo X2 Install Guide




The Duo X2 modchip is the best cheap chip available and fully V1.6a/V1.6b compatible and reliable. If you haven't got one yet then get the blue version as it has a working bios. The white ones have CROMWELL and FLASHBIOS and it needs a few additional steps. The easiest way to install it is to use the pinheader method and the alternate D0 on the back of the motherboard.

This guide will help you install a Duo X2 mochip using the suplied pin headers. You will need Torx 10 & 20 screw drivers, A soldering iron and solder and some electrical tape. Use Kynar coated wire wrap as this is the best wire for modchips. Torx 15 is needed for a hard drive upgrade and some solder wick maybe needed for mistakes or to clear the LPC holes in early models.

Soldering Tips
Use 60/40 rosin core solder of fine gauge.
Clean and tin the iron before soldering each connection.
Heat the joint and apply the solder to the joint, not to the soldering iron tip.
Each soldered point should be shinny and clean, not dull or cracked.

Lift up the sticky pads in the 4 corners. Now locate the 6 screws and using a Torx 20 screwdriver remove them. You will also find 2 screws underneath the stickers. Now remove the top cover to reveal the Hard Drive and DVD Rom unit.



Now using a Torx 10 screwdriver, locate the 3 screws that bolt the DVD Rom and Hard Drive to the chassis and remove them.



Unplug the cables from the Hard Drive and DVD Rom and then remove the Hard Drive and DVD Rom from the xbox.



Unplug all the connectors from the motherboard. Use a Torx 10 screwdriver to remove all 11 screws and remove the motherboard.

Now it's time to find out what xbox version you have by clicking Here

If your LPC holes are filled with solder you will have to desolder the holes first using solder wick. Put your pinheader in the LPC holes and remove one pin if needed. Use some sticky tape to keep it in place and flip the motherboard over so it looks like this.



Now you need to solder the pins , just put your iron tip on the legs as close to the board as possible and feed in some solder. Pull away the solder and then the iron. Your soldered joints should look shiny like these ...



Ok now we need to solder a wire to the D0 point. Follow the pic that matches your motherboard and then push the wire through to the topside.





XBOX V1.6

OK now flip the board over and remove the sticky tape and it should look this this.



Remove the black switch protector from the Duo X2. Remove pins 3, 4 and 5 from the female pinheader using long nose pliers. Now it's time to solder the female pinheader onto the Duo X2 and then push it onto the pinheader ( The bank switch should be near the side of the xbox otherwise you have put it on backwards! ). Now solder the other end of the wire to the D0 pad on the Duo X2 modchip. Now solder a wire to BT on the chip. The following pic shows where the wire needs to be soldered to on the bottom of the motherboard.

ALT BT V1.0



ALT BT V1.6



This completes the install for V1.0 to V1.5 xboxes.

IF YOU HAVE A V1.6 XBOX:

If you have a xbox V1.6 or V1.6b then you need to rebuild the LPC. This is an extra 5 wires which are needed on the back of the motherboard for any chips to work. The wires must be kept as short as possible and the points are very small. The easiest way to do these is to add a small amount of solder flux using a toothpick to the points and then touch the solder point for 1 or 2 seconds with your clean and tinned iron. Normally you never bring solder on the iron to any joint but it's the easiest way for these points for noobs. You may have recieved a LPC REBUILD board with your chip, do not use them as they are easy to install but hard to tell if the connections are solid later on and if a problem occurs after install the rebuild boards are near impossible for noobs to remove so i say stick to using wires. Follow this pic to rebuild your LPC.



Here is what your LPC rebuild should look like.




Now you need to select the right bios bank for your xbox version.




Select Bank 0 for Xbox V1.0 - V1.5
Select Bank 1 for Xbox V1.6 - V1.6b





Press Eject to boot the MS BIOS ( chip disabled )





Press Power to boot the CHIP BIOS ( Bank0 V1.0 - V1.5 )





Press Power to boot the CHIP BIOS ( Bank1 V1.6 - V1.6b )



Got a problem? then try my   Duo X2 Troubleshooter!  

Continue on to   Flash a Duo X2  



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