PSU on and green light on mobo

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craigmc17

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Oct 9, 2013
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I have a ASUS A99FX, novatech 1000w PSU and when i power the unit on the PSU is going and a green light is stuck on, every now and then the fans will start.

 
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craigmc17

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Oct 9, 2013
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craigmc17

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Oct 9, 2013
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All of the case fans and the cpu fans, it was working completely fine until I took it apart to put a new fan on the CPU (checked the CPU for damage and it's fine) and a new PSU. plugged everything back in and i've just got a green light on now.
 
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Darren Kitchin

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Aug 22, 2013
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have you checked the connection on your PSU and your devices that are plugged in? also ensure if you did manage to plug all your fans on the same connection that you split them up over your molex devices and ensure any 3 pinned plugs for the CPU or GPU are plugged into the mobo whilst all motherboard power requirement sockets are plugged in.
 
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craigmc17

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Oct 9, 2013
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craigmc17

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Oct 9, 2013
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Thanks for your help,

All fans are connected to motherboard, I've got both connections on the motherboard in place, I have two GTX 680's connected and only one hard drive at the moment, PSU is brand new, I read somewhere that the motherboard might not be installed correctly. I was thinking of taking everything apart and reinstaling it, would that help or should i test PSU in another PC, I do have a computer to test in,

Thanks agaon.
 
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Darren Kitchin

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Aug 22, 2013
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So both your 24 pin and 8 pin ATX power connectors are plugged into the mobo?
This is rather strange, is the motherboard new?
what type of CPU and RAM are you running in the system?
Is the green light coming from the top right or bottom right?
 
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craigmc17

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Oct 9, 2013
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Yep, both in snuggly.

FX-8350 processor and 8GB 1600mhz Kingston Ram (Have tried other ram in there)

Light is on the bottom right (Underneath the lower graphics card)

Motherboard is about a week old, I bought a new cooler(Cooler master 212 evo) and PSU and installed both of them.

It was working fine on old PSU and original PSU cooler.

Will register with ASUS now.

Very grateful for your help.
 
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Spoil3d

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Oct 23, 2013
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you said that you took it apart, did you reconnect the power switch ant the reset switch properly, and some cases tend to get the power button stuck, just take a look at that, if it does not work, reset the bios by removing the batter(CMOS) with the power cable unplugged),

put back the old cpu fan and c if it still does this?
 
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craigmc17

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Oct 9, 2013
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I've had no fans spinning for a couple of days now, I've tested everything in a separate PC, everything seems fine so guessing it's the motherboard, did try taking the battery out. The computer was trying to start so don't think it's the power button.

A guy at work had the same fan (Cooler Master 212) and fried his motherboard with it, could this be the problem?

Bit poor if it is, thanks for all the help.
 
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Darren Kitchin

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Aug 22, 2013
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Yeah I'm at a shrug point, hopefully someone can come along with an answer or one just manages to work it's way out :p Either way if a solution does come about or one was mentioned in here mark it off as the solution so others who read here can see that. Also good luck with it and yeah keep us updated, that is some sneky sneky problem there
 
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craigmc17

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Oct 9, 2013
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Sent the motherboard back to the supplier, they called me today to say that I will receive a new one tomorrow. Not sure how I managed to break it (maybe a short) but glad it didn't need replacing, thanks for all your help. :)
 
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