Hello - I built 3 pc's using the Biostar P4m80-M4 mobo, Intel p4 3.0 CPU, 1 gig RAM etc. They all run great except for one thing, the CPU fan belongs on a 747(airplane) !!! They constantly run at 6000 RPM. The CPU temp runs 18-22 degrees C at the 6000 RPMs. The BIOS shows the Fan speed in the PC Health section, but no way to adjust it. I have the same CPU/Fan combo in 2 HP/Compaq D530's and they couldnt' be quieter. The fan adjusts when needed and I never hear them. I downloaded SpeedFan, which shows you the speed, but no matter what I do, I cannot adjust it. I even installed the WarpSpeeder software that came with the mobo and it also dsiplay various pieces of information, but no ability to change fan speed. I also wrote all of this information to the Biostar Tech Support guys and Andy wrote back to tell me: "Sorry about this issue. if you would like to have fan control, you need to get a new fan." That's it! Nothing about what specs the fan need etc. The current fan has a 3-wire connector and appears to be about 70mm. What I am wondering is what should I be looking for in a replacement? If the BIOS has no ability that I can find, to make adjustments, and it only displays the fan info(kinda greyed out, non-editable) - how would I know what to buy? I had updated the BIOS to 6/2006 before even loading the OS, so that is current. I don't want to spend a lot on new fans - like $10 is about it for these cheap machines. If it the combo work right in other PC's, what's wrong with this Mobo/BIOS combo? I am so puzzled by this and have been searching for an answer for 2 weeks. About ready to toss them out the window because no one can stand the loud noise! Have I mentioned how LOUD these are? LOL Any help you guys can provide will keep me from climbing to the roof and leaping! Appreciate it!