What firmware are you on? Control Fan Utility doesn't work on some firmwares so I recommend you to use
You must login or register to view this content. but you'll have to enable COBRA mode to make it work. To install webMAN, first you need to run the pkg called
You must login or register to view this content. and then just install webMAN MOD on install pkg files. If you want to change your fan settings to make your PS3's CPU and RSX temperature cooler, just go to webMAN Games on the XMB, then press webMAN Setup> PS3 webMAN [Setup] and change your fan settings. I have my fan settings on Manual: 40% fan speed (0x66) and my CPU and RSX temperature almost never goes higher than 70 C.