--Getting the Most of Your Pocket PC Experience!

Frequently Asked Questions
Introduction
Step 1. Tools and Warnings
Step 2. Opening the Device
Step 3. Removing the ROM
Step 4. Some more Screws.
Step 5. Removing the Ribbon Cables
Step 6. More Ribbon Cables!
Step 7. Preparing to Overclock.
Step 8. Overclocking With The Pencil
Step 9. Tips On Reassembly.
Step 10. Testing Results!
Want Me To Do it For You?
Overclock Your EM-500-Guide By Fayle
Overclock Your E-125-Guide By Fayle
 
 

Step 8. Overclocking With The Pencil

Overclocking works by connecting the switches in a certain arrangement which in turn determines the speed that the processor is running at. The picture below shows a view from of the three selector pins. The middle one being the target to speed the processor up.

For those who want the details, here goes a simple explanation. The E-115 is set to run at 131 MHz. To make the processor run at this speed, the factory will place a resistor at Pin 1 between the adjacent points. This resistor is tested at about 100K Ohms. Pins 2 and 3 are left open, not connected, or as Logic 0s. The Processor can run at many different speeds, depending on the configuration of these three selector pins. You can actually underclock your device by changing the configuration that is already in place! Since we are concerned with keeping things simple (and to keep things stable), I will just deal with overclocking your device to 168 MHz.

Since trying to solder a resistor between the two tiny points on the Main Board proves to be an arduous task for most, it is far easier to use the natural resistance of graphite in its place! Your average number 2 pencil has the perfect lead for it (actually not made of lead though). Take your pencil and practice on a sheet of paper first. Pull out your Ohm meter and measure the resistance betwen two ends of a heavily drawn line of lead. You can practice until you have about 100K Ohms. If an Ohm-Meter is too overwhelming for you to operate, then this will become a "guessing" game as to how much led it will take! Read on to learn approximately how much will be needed.

Once you understand the resistance of lead is affected by how much is placed down, you are ready to move to your board. Keep your pencil fairly sharp for this, but do not apply too much pressure. You will need to connect the terminals on Pin 2 by drawing a line between them, similar to how you did it on paper. A lot of excess lead will result which you should be able to gently blow away! Make sure that you confine the pencil lead to the white box that surrounds it on the board. You don't want to connect one terminal of Pin 2 to one on Pin 3! The diagram below should help! For those who don't want to mess with an Ohm Meter-a good rule of thumb for how much lead should be used on the board, from my experience, is approximately 10-12 passes. For those with an Ohm Meter, you can test the resistance right on the board! It is not important for the Resistance to be exactly 100K Ohms, it can be close, however, keep it in the + or - 10K Ohms area!

Thats all you have to do to overclock! Using only a pencil! Now you should be ready to put your unit back together. Go on to the next step to receive some tips on rebuilding.