120mm fans tend to be quiet, so i'm guessing its the CPU fan. I'd check a few things - what's the 120mm fan connected to? if its a molex connector only then its prolly running at a fixed speed. CPU fans are definately motherboard controllable

Also many cases have their own fan speed selectors, or there's optional addons for that. Chances are though they won't be software controllable.

How many fans can I control?
I wish to add a footnote somewhere in a table. I am using booktabs package. I wrote the footnote using \footnote. It is showing symbol 1 inside a small box but it is not showing the footnote anywhere.

\documentclass[12pt,a4paper]{article}
\usepackage{amsmath,amsthm,amsfonts,latexsym,amscd,amssymb,mathrsfs,hyperref,textcomp,booktabs}
We have already discussed about completeness.   
\begin{table}[ht]
\begin{minipage}{\linewidth}
\def\arraystretch{1.4}\tabcolsep=2pt\small\centering
\begin{tabular}{@{} l l l l l @{}}\toprule
Order&amp;Group $G$&amp;Gap Id&amp;Presentation&amp;$\Gamma_d(G)$\footnote{We shall exclude the cases $d=1,|G|$, since $\Gamma_1(G)=K_1=\Gamma_{|G|}(G)$}\\ \midrule
1&amp;$C_1$&amp;1(1)&amp;$\langle a;a^1\rangle$&amp;$\Gamma_1(C_1)=K_1$ \\
2&amp;$C_2$&amp;2(1)&amp;$\langle a;a^2\rangle$&amp;$\Gamma_1(C_2)=\Gamma_2(C_2)=K_1$ \\ 
3&amp;$C_3$&amp;3(1)&amp;$\langle a;a^3\rangle$&amp;$\Gamma_1(C_3)=\Gamma_3(C_3)=K_1$ \\ 
4&amp;$C_4$&amp;4(1)&amp;$\langle a;a^4\rangle$&amp;$\Gamma_1(C_4)=\Gamma_2(C_4)=\Gamma_4(C_4)=K_1$\\ 
&amp;$C_2\times C_2$&amp;2(2)&amp;$\langle a,b;a^2,b^2,aba^{-1}b^{-1}\rangle$&amp;$\Gamma_1(G)=\Gamma_4(G)=K_1,\Gamma_2(G)=K_3$\\ 
5&amp;$C_5$&amp;5(1)&amp;$\langle a;a^5\rangle$&amp;$\Gamma_1(C_5)=\Gamma_5(C_5)=K_1$\\ \bottomrule
\end{tabular}
\end{minipage}
\caption{Abelian groups}
\end{table}
This table shows $\Gamma_d(G)$ for some abelian groups.

\end{document}


This is showing the line This table shows $\Gamma_d(G)$ for some abelian groups. before the table and table is showing on next page. Also i want the symbol * or \dagger at the place of a and I do not want the line before footnote.
