ok. this is what you do. the temp with the 90C+ temp does not have a sensor on it. to fix this you do the following: Open speedfan and click the configure button, then on the temperature tab(whigh should be the default tab that opens) look for temp 1, and un-check it. Also, if you know what chip the readings are coming from (eg, hard drive, cpu, nb, sb, etc... you can double click on the name and it will make it so you can rename it.)
Now to fix the fan speed, i need some info on the fan. eg: what is its rated rpm at 100%? then i can help you fix that.