PC restarting at POST

[kirannambiar]

16/10/2015

Morning: 

My Pc was running fine.

I got some windows updates installed, I didn't check what they were, got them installed after a restart and turned off my PC

Afternoon:

My PC entered boot loop at POST, it tries to get into the bios by itself but restarts immediately.

What I've tried:

•  Disconnected all SATA drives and peripheral devices. (Result: No change)
  
•  Removed my GPU, connected my HDMI to my MOBO.(Result: No change)
  
•  Tried a different RAM stick (from my old rig).(Result: No change)
  
•  Tried to run my old RIG off the PSU I use for this PC, it works fine.
  
•  Tried my RAM Stick on old RIG, it works fine.
  
•  Tried to enter Dual Bios by holding the power button until a complete boot cycle and then pressing it again.(Result: MOBO didn't try repairing my main BIOS, no change )
  
• Cleared CMOS by shorting CLR_CMOS and holding power button for 15-20 seconds with PSU removed (My mobo doesn't have jumper, it's just two pins I could find, took care of grounding, Result: no change)
  
•  I can't find another LGA1150 Mobo to test my CPU (LGA775 and FM2 everywhere )
  
•  Made sure my MOBO standoffs are high enough to avoid shorting on pins on the back of my MOBO.(Result: No change)
  
•  Cleaned Dust (Result: No change)
  
•  
  

I don't rely on random google search results or stupid forums where I'm told to clean dust properly, or try reinstalling windows or made to jump into the "OBVIOUS Conclusions"  saying my components are dead.

I am no expert, please advise me.Thanks in advance 

 

 

SYSTEM SPECS:

Mobo: Gigabyte Z97M-D3H (rev 1.0)

CPU: i7 4790 

GPU: ASUS STRIX GTX 970

RAM: Kingston HyperX Fury 1866Mhz CL 10

SSD: 120 Gb Samsung 850 EVO

PSU: Corsair CX 500 (Non- Modular)

HDD: Seagate Black 2 TB, 120 + 80 Gb WD (backup).

KEYBOARD: TVS Gold Mechanical

MOUSE: Logitech G400s

Monitor: LG24MP67 23" IPS panel

CASE: Circle CC 830 Mid Tower.

[Gnun1x]

Did you remove the CMOS Battery for 10 seconds and put it back in?

[kirannambiar]

Did you remove the CMOS Battery for 10 seconds and put it back in?

Yes for over 5 minutes or more.

[Master Disaster]

Yes for over 5 minutes or more.

Did you unplug the power connector from the PSU too?

[kirannambiar]

Did you unplug the power connector from the PSU too?

[kirannambiar]

Yes, i kept the motherboard totally isolated from power source and static charge

[Patrick3D]

Checkout the "Boot Loop" section of this Gigabyte guide over at TomsHardware for some descriptions of different boot loop types and suggestions for resolution: http://www.tomshardware.com/forum/275856-30-gigabyte-guide

[ilovepiano]

On 18/10/2015 at 3:33 PM, EpicKneusje said:

Did you remove the CMOS Battery for 10 seconds and put it back in?

I did, got it Checked, BIOS ROM was damaged they say

Thanks 

[ilovepiano]

Thanks, got it replaced, they told me BIOS flash may have caused it, but it worked for more than a month after the flash.