I've got a problem booting kernel-2.6.18-1.2200.fc5

(If this is a duplicate post I appologize. Something misfired with my 
subscription.) 


I've got a problem booting kernel-2.6.18-1.2200.fc5 

I'm using an eMachine T2240 system. 
CPU:  CPU, CEL-2.2G/128K/F400,mPGA478,SL6RW CPEMIN100155 
CPU Fan Type:  Fan, H/SINK:117162CBL01,MPGA,P4P-2.4G,W/ 

(The above was collected from: 
http://parts.emachines.com/emachines/sys_lookup.asp )

When I boot the '18-1.2200' kernel the CPU cooling fan power off as the 
words, “Uncompressing Linux Kernel....Ok booting kernel.” appear on the 
screen. 

Prior to this kernel I've had a problem where the fan will power off when the 
CPU heats up too much. That still occurs with kernel-2.6.17-1.2187_FC5 and 
earlier. But now with  kernel-2.6.18-1.2200.fc5 the fan powers off 
immediately at boot time. 

Is there something I can do to correct this problem. I'm admittedly not 
particularly knowledgeable in this particular area. 

Thank much for the help.

James.