IMTIAZ_BABA :
hey guyz please help i m using phenom 2 1055t with gigabyte 880gma usb3 motherboard .when i installed cm hyper 212 evo itz not working and if i install stock cooler it works so i think its the voltage issue issue with the motherboard cos when i installed it {cm hyper 212 evo} the cabinet fans work nicely but cpu fan {that is hyper 212 evo's } fan rotates very slowly so what i have to do please suggest or i have to change the battery
As you are aware, all computers must get a feedback signal ensuring that the CPU heatsink fan is working. This tells the motherboard that the CPU temps will not exceed design specs.
Obviously, in your case (Hyper 212) the heatsink is not working to specs. - the easiest thing to do is to unplug and plug back in the heatsink fan from the CPU_FAN header on the motherboard. Start the computer and see whether it boots and works.
If the computer still does not work, then uninstall the heatsink and test the fan for rotation by directly plugging it to the Power Supply. If the fan does not run at full speed (high RPM) then the fan is defective. Replace the fan and/or the heatsink.
Let me know the results. (In case the moderator closes this thread, please start a new thread with the new subject).