System specs 1st-
gigabyte z170n gaming 5
I7 6700k
Crucial ballistix sport ddr4 2400mhz (4*4gb) 2 sticks used at a given time
Silverstone sst-st75f-g 750w
Corsair hydro series H90 cooler
Samsung sm951
Evga 980ti hybrid
Silverstone cp04 pwm fan controller for second fan on h90 rad for push pull.
Details of the problems faced:
When I first assembled the system I was getting black screen but h90 fan and pump ran fine and audio led light up for a few seconds and then shut off followed by loops of powering on n off(for a second or two).
After checking cables, re seating ram sticks, changing ram sticks using one ram stick in slot_1(all 4sticks) I finally found the problem to be a bend pin on CPU socket. I straightened it out and re assembled the pc and it worked.
Updated the bios, installed windows on m.2 sad without issues and updated all drivers and installed apps/utilities from gigabyte support page. The pc worked fine for 5 days and yesterday I bought new fans for my case and to replace fans on my gpu n CPU rads. After installing all the fans when I tried to boot the system it didn't even powered up the rad fans and pump like before, nothing at all. I case see optical mouse's light lit up. The USB cable attached to the mobo charges phones but not powering the system . The fan on thru PSU is not turning as well.
What all I have done till now:
1replaced the mains power cable for the psu. replaced the 24 pin and 8pin cables with those from short cable set by Silverstone. Changed the orientation of the cable connectors
2 removed and reseated the CPU. Remove and re applied thermal paste.
3 removed all new fans and pwm box and only connected 4pin rad fan and 3pin pump.
4 reset cmos by connecting 2 pins of cmos_clr. Last night I removed cmos battery for about 10 minutes.
5 removed all parts from the case and assembled motherboard,cpu,rams on a cardboard notebook (attached standoffs to the motherboard and placed it on the cardboard)
6 added and removed the ssd.
7 tried all 4 ram sticks in double channel and single channel configuration.
I m out of ideas now.
Any one has any ideas?
Any help will be appreciated.
Thanks.