BleepingComputer.com: CPU Fan does not spin up

Ok so I got this comp, friend put it together for me. First time we booted up the CPU fan would not spin up. It's been through 3 cpu fans all of which were thought defective or did not fit the motherboard cpu fan power, and 2 motherboards one of the motherboards was claimed DoA by a technician got the RMA'd board and the exact same problem occured, cpu fan would not spin up. also at the POST screen it says the "FAIL, fan speed is too low.. It still does not spin up. Motherboard is an ASUS M3N-HT Deluxe and the CPU fan is a Zalman CNPS 8700 NT.

Thanks in advance

This post has been edited by mooniniteman: 24 March 2009 - 06:29 PM

What processor are you using with the motherboard? I don't think the processor is dead, but sometimes you may need to update the motherboard BIOS to support newer processors, such as the AMD Phenom II's. I just read through a couple reviews of the motherboard, and it seems a couple people were having problems with the computer not detecting the processor correctly. You said it POST's but are any of the fans spinning?

Also, what type of power supply do you have?

This post has been edited by Sterling14: 24 March 2009 - 07:16 PM

hyper type r mk2 880w all the fans spin but the cpu.am2cpu 2600

This post has been edited by mooniniteman: 24 March 2009 - 07:37 PM

Hmm, what processor are you using?

AMD Athlon 64 X2 5000 Brisbane 2.6GHz 2 x 512KB L2 Cache Socket AM2 65W Dual-Core Processor

That processor should be working fine with it.

I would now, to isolate problems from something else, take the motherboard out of the case, and place it on a piece of cardboard. Connect only the bare minimums, such as processor, heatsink, one stick of ram, and power supply. Connect the power supply and heatsink like you would normally. Now to start the computer, touch the two power on pins with a screwdriver at the same time. These are the pins you would hook the connections for the power button on the case to. Oh ya, hook up your monitor, mouse and keyboard too.

Ok I am not at my friends house to help him with his computer right now (he lives about an hour drive from me) but Ill talk to him and post back with results later on

While you're at it, you might as well reset the cmos by taking out the quarter-sized battery for a few minutes. (unplug the system from the outlet first of course). Check to make sure the cmos jumpers on the motherboard are in the right position too. The online manual for the motherboard should be able to tell you the proper way.