I am building my second desktop. After connecting a HDD, 8 gigbyte(2*4) Memory modules, PCIe Video card,CPU stock fan and adding Thermal compound to the top of CPU, I decided to test the CPU fan. Noticed there is power to cpu but the cpu fan spins on and off repeatedly. Before I do all these, I tested the PSU without attaching it to the mobo and it was working fine.
Next I removed all the components except the cpu and its fan, yet when I turn on the PSU, it spins on for like 20 seconds and halts for 5 seconds and again. I know the cpu fan should be spinning continuesly. The fan is conected to CPUFan on the mobo.
The mobo is outside of the case. Therefore non of the front panel cables are attached to the mobo. I use a flat screwdriver to short out the power-on switch. Why is CPU not spining continuesly?. Is it because there is an open circut somewhere on the mobo?. Is it because the CPU fan get stock somehow?.
Any help is appreciated.