The Celeron D you have (3.06GHz, 345) is rated to operate at 67.7C, so do not worry about the temperature as you are within the limits.
However if you do wish to adjust fan speed I would have to recommend "attempting" to use SpeedFan, this application, if your motherboard supports it, will allow you to change the speed of your fan. If it can not be done this way then I would advise the purchase of a fan controller
However if you do wish to adjust fan speed I would have to recommend "attempting" to use SpeedFan, this application, if your motherboard supports it, will allow you to change the speed of your fan. If it can not be done this way then I would advise the purchase of a fan controller
