Question Sparks from mobo

[QFX]

I was playing RDR2 when I saw a bright spark from my computer and heard a pop, this was the second time this happened, both times the computer just restarted. How worried should i be, and what should i do?

ASUS PRIME B450M-A II
CoolerMaster MWE 750 White 230V - V2

 

[drivinfast247]

I'd be very worried about it. Get a new PSU.

 

[ex_bubblehead]

Shut that system down and do NOT power it up again until that PSU has been replaced.

 

[DSzymborski]

And with a better one than that PSU, especially if you have a GPU that would cost a lot of money to replace.

 

[rolli59]

It is still a tier B PSU so I would start by taking a good look inside the PC sparks can happen with loose connectors.

 

[Jacob 51]

I was playing RDR2 when I saw a bright spark from my computer and heard a pop, this was the second time this happened, both times the computer just restarted. How worried should i be, and what should i do?

ASUS PRIME B450M-A II
CoolerMaster MWE 750 White 230V - V2

Which graphics card are you using?
Unless you're using something more powerful than a GTX 1050 ti, thats not that bad of a PSU.
Wires might be lose. You should check the chassis.

 

[DSzymborski]

It is still a tier B PSU so I would start by taking a good look inside the PC sparks can happen with loose connectors.

It is not Tier B. That's only the full-range one. The 230V-only ones are lower quality.

 

[helper800]

Sparks and loud pops = component death. Immediately shutdown the PC and get a good quality PSU from Corsair, Seasonic, et cetera...

 

[BFG-9000]

Every time I've seen this happen it's been a cap in the PSU blowing up, but inspect everything else carefully.

Amusingly, each time this happened the office PCs also ran fine until the now open-topped cap finally dried up, usually not until the next day. As the others are worried about, this can generate a whole lot of ripple to damage other components so you really shouldn't continue to run an expensive enthusiast PC like this.

I've had power mosfets blow up too during burn-in testing, with lots of exciting flying shrapnel, but you don't get the bright flash