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CPU red light on (on the motherboard)

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Hi,

one week ago my old computer started to keep restarting, tried everything but in the end I decided to replace the mo-bo + CPU + RAM.

The new components are:

Gigabyte Aorus B650 elite ax

Ryzen 7800X3D

Kingston DDR5 fury beast black

 

Put everything together, computer started without any issue and kept working for the whole week (I didn't do any benchmarks or tests though).

 

Today it suddenly doesn't start - when I push the start button the red CPU led on the motherboard immediately lights up and the computer does nothing (tried to run it like that for several minutes).

Tried to play with the RAMs, change PSU, reconnect all the cables, no luck so far.

 

Has anyone any idea what can be the issue? I would understand the fresh build, but this PC ran the whole week and there was no change! (well except for the Windows update)

 

Thanks in advance.

 

edit: when the computer's up, the power button does nothing, even after holding it for a minute, I have to switch off the PSU

Edited by jeff83
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7 minutes ago, jeff83 said:

Hi,

one week ago my old computer started to keep restarting, tried everything but in the end I decided to replace the mo-bo + CPU + RAM.

The new components are:

Gigabyte Aorus B650 elite ax

Ryzen 7800X3D

Kingston DDR5 fury beast black

 

Put everything together, computer started without any issue and kept working for the whole week (I didn't do any benchmarks or tests though).

 

Today it suddenly doesn't start - when I push the start button the red CPU led on the motherboard immediately lights up and the computer does nothing (tried to run it like that for several minutes).

Tried to play with the RAMs, change PSU, reconnect all the cables, no luck so far.

 

Has anyone any idea what can be the issue? I would understand the fresh build, but this PC ran the whole week and there was no change! (well except for the Windows update)

 

Thanks in advance.

 

edit: when the computer's up, the power button does nothing, even after holding it for a minute, I have to switch off the PSU

Reseating CPU might fix the issue

System specs:

 

 

CPU: Ryzen 7 7800X3D [-30 PBO all core]

GPU: Sapphire AMD Radeon RX 7800 XT NITRO+ [1050mV, 2.8GHz core, 2.6Ghz mem]

Motherboard: MSI MAG B650 TOMAHAWK WIFI

RAM: G.Skill Trident Z5 NEO RGB 32GB 6000MHz CL32 DDR5

Storage: 2TB SN850X, 1TB SN850 w/ heatsink, 500GB P5 Plus (OS Storage)

Case: 5000D AIRFLOW

Cooler: Thermalright Frost Commander 140

PSU: Corsair RM850e

 

PCPartPicker List: https://uk.pcpartpicker.com/list/QYLBh3

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37 minutes ago, TatamiMatt said:

Reseating CPU might fix the issue

can't imagine that it would work one whole week if not properly seated...

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8 minutes ago, jeff83 said:

can't imagine that it would work one whole week if not properly seated...

Youre not wrong but if its a CPU issue currently it cant hurt to try

System specs:

 

 

CPU: Ryzen 7 7800X3D [-30 PBO all core]

GPU: Sapphire AMD Radeon RX 7800 XT NITRO+ [1050mV, 2.8GHz core, 2.6Ghz mem]

Motherboard: MSI MAG B650 TOMAHAWK WIFI

RAM: G.Skill Trident Z5 NEO RGB 32GB 6000MHz CL32 DDR5

Storage: 2TB SN850X, 1TB SN850 w/ heatsink, 500GB P5 Plus (OS Storage)

Case: 5000D AIRFLOW

Cooler: Thermalright Frost Commander 140

PSU: Corsair RM850e

 

PCPartPicker List: https://uk.pcpartpicker.com/list/QYLBh3

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8 minutes ago, TatamiMatt said:

Youre not wrong but if its a CPU issue currently it cant hurt to try

ok, I will give it a try

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So, removed everything except for the CPU and one memory stick, still nothing.

Tried to reseat the CPU with no luck.

 

However I checked the AM5 slot and it seems to me like the pins are bent...

Could it be that I have tightened the CPU cooler too much and bent them? (I used an older one - Silentium Fera 3 HE1224).

20240301_204308.jpg

20240301_204223.jpg

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21 minutes ago, jeff83 said:

So, removed everything except for the CPU and one memory stick, still nothing.

Tried to reseat the CPU with no luck.

 

However I checked the AM5 slot and it seems to me like the pins are bent...

Could it be that I have tightened the CPU cooler too much and bent them? (I used an older one - Silentium Fera 3 HE1224).

20240301_204308.jpg

20240301_204223.jpg

They look fine

 

Hmmmm...pop the cpu back in there and let's see what else we can do

System specs:

 

 

CPU: Ryzen 7 7800X3D [-30 PBO all core]

GPU: Sapphire AMD Radeon RX 7800 XT NITRO+ [1050mV, 2.8GHz core, 2.6Ghz mem]

Motherboard: MSI MAG B650 TOMAHAWK WIFI

RAM: G.Skill Trident Z5 NEO RGB 32GB 6000MHz CL32 DDR5

Storage: 2TB SN850X, 1TB SN850 w/ heatsink, 500GB P5 Plus (OS Storage)

Case: 5000D AIRFLOW

Cooler: Thermalright Frost Commander 140

PSU: Corsair RM850e

 

PCPartPicker List: https://uk.pcpartpicker.com/list/QYLBh3

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already done, nothing has changed 😞

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2 minutes ago, jeff83 said:

already done, nothing has changed 😞

Could try the cpu in a different mobo and/or try a different cou in that mobo if you are able to do that to rule the socket or the cpu out

System specs:

 

 

CPU: Ryzen 7 7800X3D [-30 PBO all core]

GPU: Sapphire AMD Radeon RX 7800 XT NITRO+ [1050mV, 2.8GHz core, 2.6Ghz mem]

Motherboard: MSI MAG B650 TOMAHAWK WIFI

RAM: G.Skill Trident Z5 NEO RGB 32GB 6000MHz CL32 DDR5

Storage: 2TB SN850X, 1TB SN850 w/ heatsink, 500GB P5 Plus (OS Storage)

Case: 5000D AIRFLOW

Cooler: Thermalright Frost Commander 140

PSU: Corsair RM850e

 

PCPartPicker List: https://uk.pcpartpicker.com/list/QYLBh3

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So, bought a new CPU + mobo, put them into the case + 1 RAM stick and still the same problem ;-D

The only common thing is the PSU (but I tried an older one with the same result), the memory stick and the cables...

But I tried both mem sticks, it would be very weird if both sticks were damaged...

And the cables were re-plugged several times.

Well I guess I will buy new RAM and see if it fixes the issue 😕

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SOLVED!

 

Just for future reference - I changed literally everything, only the case stayed, and the problem persisted...

So the I tried to unplug every single cable from the case except the one for the power button. And it started working again! After few tries I found out that the reset cable / button is somehow broken, so without it the PC is running without any issues!

 

Thanks anyway Tatami 🙂

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