Strange problem : System not booting up

Hi experts,

I just encountered a strange behavior form my computer.

It is not booting up! :( :( :(

Front panel fans and side intake fans working. Power LED is on.
GPU fan, CPU fan, rear chassis fan, top chassis fan not running.
MemOK shows no error.
No beeps heard.

The below config was working fine until yesterday.

AMD FX 8150 Octacore Processor
HIS Radeon 6870 IceQ GPU
Asus M5A97 mobo
GSkill 8 GB RAM
4 TB HDD (Seagate + WD)
Corsair GS 800 PSU
Asus BD Drive

Please help me.
Thanks in advance.
2 answers Last reply
More about strange problem system booting
  1. are you getting through Bios or nothing?
  2. sounds like you lost and output on your power supply. if all the outputs are not there or at the right post. I would start with the simple stuff first. make sure all the header connectors are connected right. on the mb and on the case side. a lot of times it the power on cable falls off the daughter card on the case or the on switch is bad. if the cable looks fine then i would look into seeing if there a short somewhere. I would pull the gpu and all but one stick of ram and any extra cards. see if the mb comes on. if not i would try a test power supply with the system bare bones and see if it posts. with it bare bones you may want to try and clear the cmos and see if it does anything. if this is a new build and a first post issue do you have another cpu?? the mb needs to have bios 815 or higher to post with your new cpu. if it was working fine then died then you have a bad part somewhere.
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