Have some problems with first build!

Seduced Senpai

Reputable
Nov 13, 2015
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Hi, I have just finished my very first computer build, now I have spent a lot of time looking at what to buy etc.

Everything went great booted first time! But an error.

Firstly.. The error just says CPU Fan error.
Would anyone be able to tell me how to fix this?
I have the Corsair H100iGTX

Secondly.. I have a Samsung 850 250GB SSD and want to put my motherboard into AHCI mode but I can't seem to find the setting anywhere. The motherboard is a ASUS Maximus Vii Ranger.

Thirdly.. I have a ASUS GRX 970 STRIX graphics card and I have noticed only 1 fan is spinning, should I be concerned is the card broke?

Any help is greatly appreciated and I'm going to bed now so I shall reply in the morning.

But thank in advance to anyone that can help!

SPECS:

Corsair 750D
Asus Maximus vii ranger
Intel i7 4790K 4.0GHz
Corsair Vengance 1866MHz DDR3
Corsair H100i GTX CPU cooler
ASUS GTX 970 STRIX 4Gb
Samsung 850 250GB SSD
WD 1TB Blue
Corsair RM750i PSU
 


If it has warranty I suggest contacting Asus customer service and ask if they know a fix. If they don't help then RMA it. I have never heard of only one fan spinning. Seems troublesome. And it will cause issues down the road..