Was going to publish this a few months back, but the software controlled fan bus idea was hot then so I chose the DigiBus over it so here it is at last... Intro Whether you actually need the information, or even know what it means or not there is no doubt that system activity information is funky. Your car has about 5 dials in it, your microwave has a little LCD panel, even some fridges have temeprature read outs so why should your PC, a more complicated and usefull machine than all of these things be left out? In this guide I'm going to be taking you through building an, upto, 8 LED bargraph to display CPU Load %, Free Memory (RAM) %, HDD Load %, cool effects like Knight Rider chases and much more with next-to-no circuitry which I have self mockingly named the "DigiMeter". Future versions of the software will suport upto 12 LEDs, expect to see that soon. Guide Contents Intro - What you're reading now. Part 1 - Making the Device - Upto 8 LEDS Part 2 - The Software - Download and User Guide. Part 3 - Taking it further - upto 12 LEDs. Part 4 - Taking it further - upto 80 LEDs with the serial port. To complete the guide you will need... Upto 8 LEDs a mix of Green, Yellow and Red works nicely, you can also get special bargraph LED arrays which are convenient. Upto 8 1KOhm resistors. 1 parallel port plug. The provided software. Optional stripboard and bits of wire. Warning (read: Ass-Covering) Working with ports always carries some risk, as long as you take the advice in the guide and watch out for any accidental shorts you should be fine however I can't test this on all motherboards but I can give you the assurance that on every motherboard I've used this on, and for all the people I've heard from regarding a similar guide I've published elsewhere this device works fine. Software Version 1.7 Supports upto 8 LEDs CPU, HDD, RAM, Knight Rider and Random LED Display Modes. Tested on Win2000 only, but should work on XP. No SysTray support until next version.