I cooked up this action a little while ago to make chipboard texture from scratch. It makes a 12x12" (@ 300ppi) square of texture that you can clip to alphas or elements to give them a chipboard-ed look. Choose the color of the texture by setting your foreground color and play the action to generate the texture. Created in CS4, but should work in most versions.

You can also use this as a learning resource if you want - click the flyout button on your actions palette and go to Playback Options. There you can set the action to play back step by step, or have it pause for a number of seconds. You can click the arrow beside each step in the palette to expand the dialog and reveal the settings I used. Free for any use, no credit required. Have fun!