built system. fan turns on and off repeatedly on boot. no beep

saphster

Honorable
Aug 25, 2013
4
0
10,510
MB- gigabyte Z87-HD3
CPU- intel i5 4430
Memory - 1 DDR3 8gb
PSU- micronics the classic II series 700W (single +12v output rail)
VGA- AMD Sapphire HD 7850

the fan on VGA , cpu and psu just keeps turning on and off with no beep

tried booting without the vga since theres grphics built into MB, but still same result. im guessing its problem with psu or the cpu

all the parts are out of the box brand new
 
Solution
Most probably, a short.
Try taking the board outside the case and test it there.
Make sure that there are no extra standoffs that could short the board.