here it is my problem: this morning my pc was louder than usual, CPU fan was spinning at more than 4500 RPM due to a high CPU temperature (51° C). I removed the side panel of the case and the 12mm fan on the back (connected to the MoBo) wasn't spinning. I turned the machine off and connected the fan to the PSU directly. At reboot the fan was spinning again and CPU temp. is around 46° C now.
I have experinced very low system performances lately (e.g. it takes several minutes to open a USB thumb drive and CPU goes up to 50%, slow in booting Windows, slow in starting various software, etc...).
Does it look like my MoBo is dying?
It's a Asus A8N32-Sli Deluxe (my OS is Windows XP).