Overclock Your Game Boy Color!

Are you sick of wasting time playing long games like pokemon? In this giude you can overclock your GBC to play all games at much higher speeds so that you don't spend hours trying to beat your favorite games. On a side note, this is my first instructable. Yay!

Since I have done this instructable, I have made diagrams on how to use a socket to switch out crystals and how to use a switch to change speeds. Those diagrams can be found here http://forums.modretro.com/viewtopic.php?f=40&t=114

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Step 1: Tools Needed

To complete this project, you are going to need the following tools

soldering iron (30- 40 watts is fine)
crystal (14mhz or 16mhz is recommended
triwing screwdriver or small flathead screwdriver
basic soldering skills
a game boy color (duh)
rosin core solder
vice grips

Step 2: Taking It Apart

First we have to take this apart. Now, it has those special screws nintendo uses on their products, so you might need to buy a triwing screwdriver. I bought one for $5 on ebay.

However, if you do not want to spend 5 bucks, you can use one of those mini flathead screwdrivers. The trick is to put the tip inbetween the three intersections on the screws. Then, if you did it right, can take out the screws.

Now, after you have the case off, you can get to the insides. There are screws atatched to the board, but we do not need to take these off.

Step 3: Locating and Removing the Old Crystal

Now to find the crystal. On the top half of the motherboard, to the right of the cpu, is the crystal. It looks like a small black rectangle and on it are the words: KDS 8.25.

To remove the crystal, get a small pair of vice grips, and clamp the crystal with it. Move the vice grips back and forth, and, if done correctly, the crystal will come off. Be careful not to break off any surounding parts though. Now there should be some visible contacts where the crystal was attatched. This is where we will solder the new one to.

Step 4: Adding the New Crystal

Time to solder on a new crystal!
Go out and get yourself a 14 or 16mhz crystal for the game boy. Don't go much higher than 16mhz, though, as doing so would make games unplayable, and could possibly fry the system, which we obviously don't want to do. To save some money on the crystals, take apart some dead electronics, such as crashed computers, and find a crystal in there.

Now we need some wire. You only need two 3 inch wires, but make sure they are not too thick, as it could make it hard to fit it in the case. Now solder the wires to the crysal's leads, and then solder the the ends of the wires to the contacts where the old crystal used to be. It doesn't matter which leads you solder to which spot, because crystals have no polarity.

Next we have to find a place for the crystal. I found that near the top of the case, there is plenty of room for a crystal to fit.

Step 5: Putting It Back Together

Now all that is left is to put the Game Boy Color back together. just put the case back on and screw it together!

Turn it on, and play your games at a faster pace. If it does not work, check your connections. It may be a cold solder joint. To fix this, just re-melt the solder on the connections.

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    67 Discussions


    10 years ago

    Hey, this is a great instructable and is very informative. Just one thing is missing... pictures! It really helps a lot when trying to follow directions so you should consider taking some photographs. Once you do that and leave me a message when you have so that we can publish your work. Thanks! Thanks for the cool instructable and we hope to publish this soon!

    1 reply

    8 years ago on Introduction

    Is it possible to control how faster it gets like a on and off button? or more to less like a volume.


    of course!

    However, keep a few things in mind. a GBA uses a 4 mhz crystal rather than an 8 mhz like the gbc. So when  overclocking a GBA, just add an 8 mhz crystal.


    Reply 8 years ago on Step 5

    could you save money and use the 8 mhz crystal from the game boy and solder it into the GBA?


    8 years ago on Introduction

    Great instructable, just did this to mine with a 14mhz and playing pokemon is intense, thanks a million

    Doctor What

    10 years ago on Introduction

    You might want to use macro mode. Its the little flower on your camera. It's better for taking closer shots. Good instructable though!

    7 replies
    ReCreateDoctor What

    Reply 10 years ago on Introduction

    ...umm not all cameras have that,ive seen it on one of those Nikon(am i right) pro cameras


    Reply 9 years ago on Introduction

    a samsung digimax 101. my macro mode is a magnifying glass held in front of it


    9 years ago on Step 3

    when i tried to clamp the crystal with the vice grips it shattered and there was only the base left is there some special part to grap it on or what

    1 reply

    Reply 9 years ago on Step 3

    to the left of the crystal there are 2 little solder joints going from it. solder to those and you will be fine


    10 years ago on Step 4

    Hello, I have a problem, I did the steps, on which you comment, and all good, but when I ignite it, the sound well, but the lcd does not have image, I wait for his(her,your) help. Thank you

    2 replies

    Reply 10 years ago on Introduction

    Actually, I have found out recently that the highest mhz it can go before being destroyed it 69. So I doubt he had too much speed.