[SOLVED] MSI PC suddenly wont turn on and has 3 blinking red light on top left

[portgasdeace]

Spec: EVGA 400W psu
Amd Ryzen 5 2600

Hi my PC has been fine for almost 1 and half year now.

Suddenly it wont turn on.

When I connect the PSU there is 3 blinking red light on top left of motherboard near I/O.

When I power on the fan runs half a second then its dead. After that if I power on nothing happens.

My likely suspect is PSU at the moment but any advice you guys will have will be amazing.

Thanks,

 

[rocktalkrock]

What is the name of your motherboard?

 

[portgasdeace]

What is the name of your motherboard?

Hi the motherboard is msi B450 gaming pro carbon.
I just bought this over a year ago.

 

[rocktalkrock]

Hi the motherboard is msi B450 gaming pro carbon.
I just bought this over a year ago.

Have you tried clearing the CMOS?
Have you tried booting with no drives connected to see if you can get into the BIOS?

 

[portgasdeace]

Have you tried clearing the CMOS?
Have you tried booting with no drives connected to see if you can get into the BIOS?

Hi so far I have tried these.

• clear CMOS through JBAT-1
• clean ram slot, tried different ram slot

-tried booting with no drive

When I unplug the PSU power cord and rejoin this red light blinks 3 times,
Well I have a new PSU arriving tomorrow.
I am just worried if it is not PSU then what am I looking at.

At the moment I am just have CPU, with CPU heatsink and fan, Ram plugged in nothing else.
I have plugged in CPU and ATX plugged into PSU.

Please share any of your knowledge on these.

Thanks

 

[rocktalkrock]

Hi so far I have tried these.

• clear CMOS through JBAT-1
• clean ram slot, tried different ram slot

-tried booting with no drive

When I unplug the PSU power cord and rejoin this red light blinks 3 times,
Well I have a new PSU arriving tomorrow.
I am just worried if it is not PSU then what am I looking at.

At the moment I am just have CPU, with CPU heatsink and fan, Ram plugged in nothing else.
I have plugged in CPU and ATX plugged into PSU.

Please share any of your knowledge on these.

Thanks

Is the motherboard outside the case?
Do you have 1 stick of RAM located in slot DIMM_A2?

 

[portgasdeace]

Is the motherboard outside the case?
Do you have 1 stick of RAM located in slot DIMM_A2?

yes motherboard is outside the case and 1 stick of ram in DImm_A2

 

[portgasdeace]

Hi Guys this is solved it was PSU.

I bought new PSU and voila worked,
I tried again with my old PSU and same problems.

EVGA PSU broke within 1.5 years of use.

Thanks for all your inputs