**Long post** Hi, have a bit of a problem and would appreciate some (or alot) of help. I have an HP Pavilion dv4000 series, DV4388EA to be exact, where my CPU seems to be seriously overheating, while playing games that don't really require that much processor speed. Now i noticed that my current cpu-fan works quite at a slow RPM rate, and i'd like to speed it up, as this, i think, would definitely solve the overheating problem. The problem is that i tried various software programs like FanSpeed, NHC and the like, and NONE of them can detect my fans, because both tell me that my ACPI is not configured. They can detect the temperatures and stuff like that, but can't access or detect fans. My idle CPU temperature is anywhere from 56-59C, and when playing games it rises rapidly up to 75-82C, where my FSB automatically drops by half, thus slowing down performance and drastically reduces playability of the game. Or sometimes the computer just plainly reboots.... Now, the ONLY reason i can think of why my ACPI is not configured is because i changed the default BIOS that came with the system, with the new and supposedly supported PhoenixBIOS version. Now, when i go and check BIOS, there is absolutely NOTHING i can change. The only interactable things in bios are checking temperature, doing quick scans of my HDD and turning bluetooth/USB on/off... that's it. So should i restore my previous (if rather old, year 2005) bios and see if that helps, or is there some other solution to controlling my CPU speed. My current bios is: Phoenix, Version F.21 01/18/2007 where it says that ACPI is supported and enabled.... Also, one other thing, i used NHC to reduce my cpu voltage by like 30% and it runs smooth as hell....But it STILL hasn't reduced my overheating problem, not by a longshot. Just reduced a few degrees... As a sidenote: I'm used to running Quake 4 and stuff on this PC on maximum graphics with no problem, now it seems it's overheating... Maybe it's getting crummy and dusty inside, but the warranty is in effect and i don't wanna disassemble and clean it, since i'm not that good with notebook hardware. Here are my computer specs, if anyone's interested and if they'll help, some info might be irrelevant: Vendor: Hewlett-Packard Name: Pavilion dv4000 (ES967EA#UUG) Motherboard Chipset: Intel Alviso i915PM System Memory: 1024 MB (DDR2-533 DDR2 SDRAM) Memory Timings: 4-4-4-12 (CL-RCD-RP-RAS) (is that bad? can it be more effective?) Processor: Mobile Intel Pentium M 750J, 1866 MHz (14 x 133) x86 Family 6 Model 13 Stepping 8 External clock 533Hmz Voltage 3.3V, Legacy Mode: Yes Video Adapter: ATI MOBILITY RADEON X700 (Omega 3.8.330) (128 MB) Audio Adapter: Intel 82801FBM ICH6-M - AC'97 Audio Controller [B-2] Disk Drive: FUJITSU MHV2100AT PL (100 GB, 4200 RPM, Ultra-ATA/100) Optical Drive: TSSTcorp CD/DVDW TS-L532M (DVD+R9:2.4x, DVD+RW:8x/4x, DVD-RW:8x/4x, DVD-ROM:8x, CD:24x/10x/24x DVD+RW/DVD-RW) Network Adapter: Realtek RTL8139/810x Family Fast Ethernet NIC Oh and my CPU Alias says for some reason "Dothan", but it's not, it's something starting with S, forgot. The solution i'm looking for is someone suggesting some other fan speed controll software that might work for HP, or something HP-specific, or some other solutions of controlling fan speed and generally reducing heat. I don't care about the sound the fan will make, as long as it will work FAST and COOL. Or any helpful solution that might help my HP notebook to generally increase performance and reduce heat. Well, that about sums up the gist of my problem. In short, i want to make the fans go FASTER. Hope someone will take the time to read through and try to help me, and thank you in advance for your valuable time!