Mount And Blade Win Favour About Cpu Fan?

About cpu fan? - mount and blade win favour

My PC is Win 98SE, and if we restart my PC, Win 98SE Download icons. but there is no noise in my fan and so quiet that my fan does not work. it heats up. ?

but if I remove my fan blades and clean the CPU fan and put it back on the rail and do not restart the computer works. Monitor, the screen displays black. Whistling sounds and more than 15 years. Monitor display shows the yellow light, but blink.

Suddenly, the PC is working and what you see on the screen.

What is the problem on my PC. Fan is off quality is cheap. the fan to whistle.