Pc boot and shut and boot and shut and showed gigabyte uefi dual Bios and cycles

[shekyc]

Yesterday some signs of problem already occurred after I swapped the CPU with a 2400. It only boot up successfully when the Mon plugged in onboard gpu. I entered bios successfully and can configure the settings. Once I change the video output from auto to peg it booted with 1 long 2 short code. According to award that means something about video.

Today, It booted up and reboot as the title described. Yesterday when I reset uefi with jumper it will automatically boot, but no longer now. I breadboarded and tried every step from shortstuff_mt's guide
Except the psu as it worked on another computer

Today the screen showed up when it automatically reboots the 3rd time:

1st: fan on CPU fan max lasts about 25s
2nd: fan on and slowed down and shut
3rd: just like normal boot but showed the uefi title only. After 5s shuts and back to 1st

Recently I upgraded bios to uefi u1c. I think the problem maybe about the CPU swapping and I really wants to fix it. Feel free to provide more information in my active time (GMT+8)

Any reply will be appreciated

2500k
GA-Z68MA-D2H-B3 rev 1.3
16GB 8*2 Kingston KVR16N11/8
Inno3d 980ti
Deep cool da700

 

[ragnar-gd]

It may still be the PSU, not providing enough power, as the 2500K uses more power than the 2400, the 980ti drawing a lot on its own, and maybe the PSU was barely adaequate before. Look for a spare PSU of at least 600W to check. If that does not help, your MoBo may be failing.

 

[shekyc]

It may still be the PSU, not providing enough power, as the 2500K uses more power than the 2400, the 980ti drawing a lot on its own, and maybe the PSU was barely adaequate before. Look for a spare PSU of at least 600W to check. If that does not help, your MoBo may be failing.

This is complicated.
The bios corrupted and was fixed by these steps for reference:
1. Power off your pc
2. Hold the power button for 10 seconds, just let it on off automatically
3. Turn it on by one tap
You should see a screen showing that it's recovering from backup bios

The second problem is first resolved by putting the gpu on the second slot, but after investigating i have found that my cpu bent 2 pins marked as PEG (PCI Express Graphics), I bent it back and no more problems.

Still thanks for your answer but my PSU is 700w