[SOLVED] Why won't my PC turn on?

[Airborne92]

So I have been having lots of issues recently with my computer after installing a graphics card the power supply stopped working and my motherboard started smoking, so I replaced the motherboard and got a stronger power supply and it still won't turn on... Any ideas that I should try?
(I see no visible damage on anything else)
Motherboard - msi b450m gaming plus

Power supply - thermaltake smart 500w

Edit - I have since gotten rid of the gpu (I was originally going for a upgrade but then got a refund after dealing with the new issues)

 

[PC Tailor]

Power supply - thermaltake smart 500w

There's probably your problem.

Smart series is an awful PSU. Quantity of wattage is useless without quality.
The GPU may not have needed more power, it needed better quality control and output of power.

There's no guarantees the PSU hasn't damaged other components.

See point 1 here: https://forums.tomshardware.com/thr...when-selecting-parts-for-a-custom-pc.3510178/

Is the Smart your new one? What was your old one?

 

[Paperdoc]

See my post of Sept 6 on Stand-offs in this thread

[SOLVED] - Rig turns on for a second then shuts down

Building a rig for my step-father out of my previous rig parts but it just wont boot. I have used a new mb and a new psu so far waiting for new ram to come in. All of which still causes the rig to not boot. First was with the old mb and other old components i was able to get the psu led to come...

forums.tomshardware.com

Since you replaced your mobo, it is possible the stand-off positions for the new one do not match where the old one's stand-offs were placed.

 

[Airborne92]

There's probably your problem.

Smart series is an awful PSU. Quantity of wattage is useless without quality.
The GPU may not have needed more power, it needed better quality control and output of power.

There's no guarantees the PSU hasn't damaged other components.

See point 1 here: https://forums.tomshardware.com/thr...when-selecting-parts-for-a-custom-pc.3510178/

Is the Smart your new one? What was your old one?

Smart is my new one, my old one was Corsair cx450 or something like that which didn't originally work with the replaced board

 

[Airborne92]

I

See my post of Sept 6 on Stand-offs in this thread

[SOLVED] - Rig turns on for a second then shuts down

Building a rig for my step-father out of my previous rig parts but it just wont boot. I have used a new mb and a new psu so far waiting for new ram to come in. All of which still causes the rig to not boot. First was with the old mb and other old components i was able to get the psu led to come...

forums.tomshardware.com

Since you replaced your mobo, it is possible the stand-off positions for the new one do not match where the old one's stand-offs were placed.

I got the same exact motherboard, standoffs are all in the same place