My Desktop Shut itself off. first boot bios say 45 ° keep increasing. not hot at all when feel. restart and it is on 19-20°

[Nielsbobech]

My Desktop Shut itself off when i turn it on. only happens one time after the first boot up. and then it do fine. and im in windows when its shut down. there is no sound when shutting down.
and sometime it dont happen
Hope you can help

My build:

Corsair Spec 03 case. good air flow
Corsair h80i water cooling loop. cpu 20° start up 30°-32° Gaming
Cpu amd fx 8350 4 ghz
Ram. Crusial Balistic 2x4 gb in position 2 and 4 slot
Motherboard msi 970 gaming crossfire ready 38°-40°-58°
Psu corsair 750 watt gold
Gpu/graphics Card. Msi R9 290 Gaming 40° not gamming 60°-70° when Gaming
Hardrive Seagate Desktop SSHD - Hybrid harddisk - 1 TB ( 8 GB Flash ) - intern - 3.5" - SATA 6Gb/s - buffer: 64 MB 27 ° airflow
disk Asus something something
Led Light in case
and a fan controller there is in The other disk bay
2 x 120 mm air Pressure front 1x airflow 120 mm top 1/2 120 mm pressure fans and its where my corsair radiator
run window 8,1

 

[Outlander_04]

Try resetting the BIOS

 

[Nielsbobech]

Try resetting the BIOS

thanks for the anwser i will try that

 

[Nielsbobech]

Try resetting the BIOS

i think i know the problem. when i first boot up and go in to bios its starts on 45 ° and just keep going up and up to the point where it say to hot shut down. and then i restart and go in to bios its down on 19-20° stable ?? i can feel my water loop i running so i think its a broken sensor ??

how to fix a broken sensor ??

ps i i have done a restart on bios

 

[Outlander_04]

Most boards have a dual BIOS . If one fails then the second works to get you running .

Restart BIOS or reset?

 

[Nielsbobech]

Most boards have a dual BIOS . If one fails then the second works to get you running .

Restart BIOS or reset?

i have try to restore an update bios. but it dosent work. how can i fix it ?

 

[Nielsbobech]

It was the water coolimg system there did not work