gigabyte h81m-s2pv power need's

[nick_6]

hi i have bye the gigabyte h81m-s2pv with i3 and 4gb /1600 mhz memory and i install it in my old case with 400 watt power suply.
When it load the windows and after 5 min it hard reboot.
Q. Is the 400watt power suply small,and needs more power ,and how many?
thanks..

 

[Ahmadjon]

What model of PSU do you have? Quality good 300W is enough for system without graphics card.

 

[ticktoc]

your psu may not be haswell ready. The board takes very little power to start the motherboard, your power supply may not detect this low voltage

 

[Ahmadjon]

your psu may not be haswell ready. The board takes very little power to start the motherboard, your power supply may not detect this low voltage

Then he should disable C6, C7 states in BIOS!

 

[nick_6]

Thnaks 4 the answer's.
the problem solved with the replaysing the psu with an other 400 w and works perfect
thanks again.

 

[Ahmadjon]

Thnaks 4 the answer's.
the problem solved with the replaysing the psu with an other 400 w and works perfect
thanks again.

You're welcome At least you found the issue!