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System fan error

post #1 of 9
Thread Starter 
Hi, I just swapped out a LGA 775 with a LGA 1156 board and when I boot I am getting "System fan error". I don't know what is causing this because all the fans are running perfectly. Also tried switching the cooler with no success.

Thank you
post #2 of 9
The fan you have plugged into the fan header either doesn't have a sensing wire or it's simply not plugged in.
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APU what?
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post #3 of 9
Thread Starter 
Quote:
Originally Posted by Cavi Mike View Post

The fan you have plugged into the fan header either doesn't have a sensing wire or it's simply not plugged in.

My header is then broken because I have tried to different fans.
post #4 of 9
If the fans are two-wire you could try 100 fans and it's not going to change anything. And make sure you're talking about the "SYS_FAN" not the "CPU_FAN"
APU what?
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APU what?
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post #5 of 9
Thread Starter 
Quote:
Originally Posted by Cavi Mike View Post

If the fans are two-wire you could try 100 fans and it's not going to change anything.

They are the fans that comes with the stock coolers.
post #6 of 9
Guess I didn't edit my post in time. I have a feeling you're talking about the "CPU_FAN" when you need to be talking about the "SYS_FAN" header. Completely different. My guess is you don't have anything plugged into it. That or your case fan is a two-wire.
APU what?
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APU what?
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post #7 of 9
Thread Starter 
Quote:
Originally Posted by Cavi Mike View Post

Guess I didn't edit my post in time. I have a feeling you're talking about the "CPU_FAN" when you need to be talking about the "SYS_FAN" header. Completely different. My guess is you don't have anything plugged into it. That or your case fan is a two-wire.

The fan that came with the case is connected via molex.

Edit : Just checked and it's also a two-wire fan and nothing is plugged into sys_fan Will I need to by a new fan with 3 pin in order to fix the problem?
Edited by Rasemotte - 3/29/13 at 6:52pm
post #8 of 9
Your point?

Dude, this is very simple. Look at your system-fan header NOT your cpu-fan header. What's plugged into it? Nothing? Well there's your problem. Plug a 3-wire fan in or turn off the sensing in your BIOS.
APU what?
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APU what?
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CPUMotherboardRAMHard Drive
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post #9 of 9
Thread Starter 
Quote:
Originally Posted by Cavi Mike View Post

Your point?

Dude, this is very simple. Look at your system-fan header NOT your cpu-fan header. What's plugged into it? Nothing? Well there's your problem. Plug a 3-wire fan in or turn off the sensing in your BIOS.

I understood that and tried putting a fan in there but it's still broken. I'll just dump that OEM crap. Thank you anyways for your time.
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