PC will not turn on

[thechankwhoganks]

Long story short, my cousins computer will not boot up anymore. As soon as I turn on this rig, it will show some sign of life but instantly flicker right back off. The fans on the cpu, case and gpu spin for 1 second and then all power is loss. I tried troubleshooting this by plugging in a new powersupply that is confirmed to be working, a new pair of ram, I tried unplugging the ssds and hdds and I still get the same shit happening. This is a rig owned by my cousin and he told me that this started after they had power surge. The only thing that I can't test right now is the cpu since I do not have an extra i7 3770k or a lga 1156 socket cpu.  After doing these tests I still get a little light flicker on the fans and everything else then a shut off. My motherboard is a asus z77 deluxe and it has a green steady light on as soon as I plug it into the wall.Any tips or helpful info will be appreciated.

[Rusty_Shackleford]

Long story short, my cousins computer will not boot up anymore. As soon as I turn on this rig, it will show some sign of life but instantly flicker right back off. The fans on the cpu, case and gpu spin for 1 second and then all power is loss. I tried troubleshooting this by plugging in a new powersupply that is confirmed to be working, a new pair of ram, I tried unplugging the ssds and hdds and I still get the same shit happening. This is a rig owned by my cousin and he told me that this started after they had power surge. The only thing that I can't test right now is the cpu since I do not have an extra i7 3770k or a lga 1156 socket cpu.  After doing these tests I still get a little light flicker on the fans and everything else then a shut off. My motherboard is a asus z77 deluxe and it has a green steady light on as soon as I plug it into the wall.Any tips or helpful info will be appreciated.

 

Is the CPU power cable plugged in? I forgot to plug that in when I was building my current rig and it did the same thing.

[BlueChinchillaEatingDorito]

Long story short, my cousins computer will not boot up anymore. As soon as I turn on this rig, it will show some sign of life but instantly flicker right back off. The fans on the cpu, case and gpu spin for 1 second and then all power is loss. I tried troubleshooting this by plugging in a new powersupply that is confirmed to be working, a new pair of ram, I tried unplugging the ssds and hdds and I still get the same shit happening. This is a rig owned by my cousin and he told me that this started after they had power surge. The only thing that I can't test right now is the cpu since I do not have an extra i7 3770k or a lga 1156 socket cpu.  After doing these tests I still get a little light flicker on the fans and everything else then a shut off. My motherboard is a asus z77 deluxe and it has a green steady light on as soon as I plug it into the wall.Any tips or helpful info will be appreciated.

 

Ensure all cables (24pin, 4/8pin CPU, all SATA, and any PCI-e Power) are properly and securely connected. Turn off the power supply and clear the CMOS (reset the BIOS). See if it'll post now.

 

The instructions for clearing the CMOS for your particular board is here:

 

Switch off the Power Supply or unplug it.

Simply press and hold the CLR CMOS for a few seconds.

 

[LunaP0n3]

I suspect the motherboard's dead or nearly so. Motherboards are particularly sensitive to spikes in voltage and a sudden spike can cause serious trouble. If the motherboard proves to be indeed dead, when you replace the mobo, plug the system into a surge protector.

[Deagon]

Long story short, my cousins computer will not boot up anymore. As soon as I turn on this rig, it will show some sign of life but instantly flicker right back off. The fans on the cpu, case and gpu spin for 1 second and then all power is loss. I tried troubleshooting this by plugging in a new powersupply that is confirmed to be working, a new pair of ram, I tried unplugging the ssds and hdds and I still get the same shit happening. This is a rig owned by my cousin and he told me that this started after they had power surge. The only thing that I can't test right now is the cpu since I do not have an extra i7 3770k or a lga 1156 socket cpu.  After doing these tests I still get a little light flicker on the fans and everything else then a shut off. My motherboard is a asus z77 deluxe and it has a green steady light on as soon as I plug it into the wall.Any tips or helpful info will be appreciated.

Dead motherboard for sure, check it for blown capacitors on the board like any of these the round top (blown) or even exploded one there 

[DarthSlater77]

Ensure all cables (24pin, 4/8pin CPU, all SATA, and any PCI-e Power) are properly and securely connected. Turn off the power supply and clear the CMOS (reset the BIOS). See if it'll post now.

 

The instructions for clearing the CMOS for your particular board is here:

 

Switch off the Power Supply or unplug it.

Simply press and hold the CLR CMOS for a few seconds.

 

Untitled.png

It sounds like a power isue if this dosent fix it and it does the same with a know good PSU the MOBO is Probably dead. 

[0x1e]

Sounds like a cheap PSU allowed the surge to go to more sensitive components.

Clear the CMOS encase its become corrupt. If that doesn't work, neither does a new PSU then I would believe you're fucked in some way.

Check the GPU. You've stated you have no way of testing the mobo / CPU so if one of those are the problem then you'll just have to bite the bullet and get new ones.

[thechankwhoganks]

Sounds like a cheap PSU allowed the surge to go to more sensitive components.

Clear the CMOS encase its become corrupt. If that doesn't work, neither does a new PSU then I would believe you're fucked in some way.

Check the GPU. You've stated you have no way of testing the mobo / CPU so if one of those are the problem then you'll just have to bite the bullet and get new ones.

Well it was an EVGA supernova G2 750. If that's considered cheap then damn. I hope my 1000g2 will last and save me from this bs on my rig