CT-7VJD0/AMD voltage problem???

Hey team,
I currently have a Chaintech 7VJD0 Mobo with a Athlon 1.4 on it. I have a Coolermaster DP5-6I31A heatsink/fan and a Global Win WBK68 heatsink/fan. The problem is, i had the WBK68 fan on the T-bird first, and it is rated for 4800RPM's on 12V DC, but it was only turning at about 3800 RPM's which is unusually low. So i went out and got the coolermaster and put it on the T-brid, and turned the Global Win fan into a System fan. But, the cooler master is rated for 5400 RPM's on 12V DC, yet it was only turning at about 4200 RPM's. Now I have;
T-bird 1.4GHz w/ coolermaster on it
Chaintech 7VJD0 Mobo
Creative CD-RW
USB hub
Maxtor HD (not sure of the speed)
140W power supply

Now because of the unusually low speed of the fan's, i figured that they wern't getting the entire 12V that it needed. So before i go out and buy a 300w power supply, i decided to measure the fan's voltage, and both of 'em came out to show up about 12.7 volts. I put the red prong on the red connector on the fan plug, and the black prong on the metal part of the case, and it showed up about 12.7 volts on the meter(It was set to 20 DCV) So i am stumpped, the Fan's seem to be getting there required voltage, yet there running way slow, and my T-bird 1.4 is running in the 50-60's C, i dont know wnat to do, should i still go out and get the 300w PSU? Please help!!!

My cup holder can burn CD's!!-Justin