CoolerMaster HSF pooping out?

[FluffyPirate]

I've got an x2 4200 at stock-clocked 2.2GHZ speeds with a lower-end CoolerMaster HSF that came with the system (from www.cyberpowerpc.com ). Recently, the noise level in my case has dropped drastically without me doing anything. Although my rig is pretty cool, it gets hot during gaming sessions, and recently it's gotten a bit hotter. Then I started to get messages from the BIOS that the CPU fan speed is too low. I looked inside my case, and it looked the same as ever. I opened the BIOS (I have an S939 Asus A8N5X) and looked at the fan speed. 80% of the time, it was around the regular 2200rpm, but sometimes it would dip to 1100rpm (the mobo warns you at 1200rpm). I immediately looked at the fan when this measurement would dip, but I noticed no difference at all. Visually, the fan was running at a constant speed. I do definitely notice a difference in temperature however. I fear that the fan is dying.

What should I do?

 

[Johnx64]

you could either just go ahead and get a better heatsink or just buy a new fan for it. Whichever you feel like spending money on. I'd personally go for a better heatsink to justify paying shipping.