PC won't boot unless I use the PSU power switch - Yellow DRAM light

[Suchitai]

Hello all, I just finished building my new pc, however I encounter a really strange behaviour.

I can boot after powering up my PSU (ON/OFF switch) without any problems. Everything's working fine, bench/stress tests and gaming are all good.

But, when I try to boot after having shutdowned the computer (either by holding the power button or just using Windows to do so), or want to wake it up from sleep mode, the yellow DRAM led lights up, fans are spinning and the computer never boots/wakes up.

In this state, the motherboard doesn't respond anymore (power button does nothing, same for reset button). Q-code displays a "00" and the led from the power button doesn't light up at all.

However unplugging then plugging the power cable of the PSU or disabling/enabling the PSU switch makes it start as usual without any problems.

Moreover, when everything's working fine, if I press the reset button or want to reboot in Windows, then there are no problems at all, and my computer boots.

 

I need to add that I had an issue when removing the amd cooler (wraith prism) before receiving my 240mm aio. The cpu came out along with the cooler, bending a few pins. 

As I just tried to boot with the amd cooler, to check if there was no issues with CPU/MB, I didn't try to shutdown the computer and then restart it at the moment.

The few bended pins were only slightly bended, so i put them back into place.

 

The ram is not the problem, although the DRAM led lights up, as I tried with two ram kits (Trident Z neo 3600 CL16 and Crucial 2133 CL15). And I have the same behaviour with each kit.

I still haven't tried to use another PSU, but I don't think it is the problem as this behaviour is consistent.

Clear CMOS doesn't help either.

 

Which, I think, brings us to CPU or MB...

 

Apart from the GPU and HDD, all components are brand new.

 

I am completely lost with this behaviour..

What are your thoughts ? Should I try to install the lastest BIOS ? Should I try to exchange MB and CPU ?

 

My pc :

Motherboard : ASUS ROG crosshair VIII Impact X570 - bios 1001 (not the latest one)

CPU : Ryzen 7 3700x

RAM : 32gb Trident Z neo 3600MHz CL16

GPU : 1080TI FE

Storage : Sabrent 500gb NVME & Crucial MX500 M2 SATA 500go & 1To HDD WD

PSU : Corsair SF750 (sfx)

 

[I hope you can understand my english as I'm French, and not used to use hardware expressions] 

 

 

EDIT : Bios updated to the lastest (version 1302)

Problem is still here..

[GOTSpectrum]

I had this exact problem with a ROG X99 Rampage V.

 

Turns out it was a bad BIOS chip, updating the BIOS, swapping out the 5960x for a 4 core XEON, changing the ram, nothing sorted it. Dealt with it for years before reading on a thread that this type of ROM(on the X99, not your board) used by Asus on this board is dodgy. Not saying it is the same for you however.

 

Story time is over, I'd just RMA the board honestly if a BIOS update doesn't fix the problem. It's unlikely to be the chip in my experience. 

[Sse.yassin]

Error code 00 means faulty cpu or broken cpu or bend pins

And plug front panel connectors to boot to windows from the power button

.

But I think it's afaulty board or afaulty cpu

 

[Hairless Monkey Boy]

7 minutes ago, Suchitai said:

[I hope you can understand my english as I'm French, and not used to use hardware expressions] 

I wish you had mentioned this at the beginning. Had to go back and read it with a French accent, now it all makes sense.

[Sse.yassin]

1 minute ago, Not Wills said:

The cpu work so how does that make sense

Even if some pins are broken or the socked is broken won't make the device post maybe it's a grounding pin or memory channel or maybe the board is faulty

[Mateyyy]

6 minutes ago, Sse.yassin said:

Error code 00 means faulty cpu or broken cpu or bend pins

Not true for ASUS boards, or at least OP's board. Check the user manual.

[Suchitai]

1 minute ago, HairlessMonkeyBoy said:

I wish you had mentioned this at the beginning. Had to go back and read it with a French accent, now it all makes sense.

I knew I should have added a "baguette" somewhere !

 

4 minutes ago, Sse.yassin said:

Error code 00 means faulty cpu or broken cpu or bend pins

And plug front panel connectors to boot to windows from the power button

 

Using front panel connectors doesn't change anything

I'll check the cpu pins once again then..

 

7 minutes ago, GOTSpectrum said:

I'd just RMA the board honestly if a BIOS update doesn't fix the problem. It's unlikely to be the chip in my experience. 

That's what I'll have to do if bios update doesn't work

[Suchitai]

4 minutes ago, Sse.yassin said:

Even if some pins are broken or the socked is broken won't make the device post maybe it's a grounding pin or memory channel or maybe the board is faulty

I still have dual channel, so luckily I didn't hurt any of these pins

[Sse.yassin]

 Fj8 x

Imran by memory lanes

Pcie lanes

North ridge connection

Sata connection 

Ram Chanel's even if it working fine it won't be full speed

The mean thing. I want to say that the error code 00 means cpu not plugged in 

But maybe there are pins not connected well

Or afaulty board chipset 

[Suchitai]

I solved my problem !

I noticed a huge loss of power on my GPU (massive fps drop and 0% power used by GPU on afterburner) while gaming, so I swapped my PSU with my brother's PSU.

And suprise, everything works as expected !!