Of course, hardware geeks probably already know about this, so I guess it should be “Attention Citizens Who Like To Fiddle With Their Hardware Without Knowing What They’re Doing”.
Adrian’s Rojak Pot is a great resource for hardware news and reviews. They have some other stuff, like game patches and things, thrown in there too. But I was really impressed with The Definitive BIOS Optimization Guide. I have no idea if any of these tips are actually worth noting, but it looks impressive! Whaddya want for nothin’?