Question Sizzle sound when turning on and no power to peripherals

[nexus115]

Hello,

So as the title states, when I turn on my desktop, there's a sizzling sound around the top left area of the motherboard, around the CPU power. Other components within the computer seem to have power such as the fans, the GPU, the motherboard itself. Anything connected to the computer such as peripherals don't seem to turn on either to the lack of or no power.

My motherboard displays a red light switching between CPU and RAM. I've tried swapping out RAM one by one and reseating them which didn't work. I've tried turning it on with out a CPU, and it showed only the CPU light on, but everything on the CPU looked fine, all the pins in the socket were fine. I even swapped out the CPU with another I had around and went back to the two alternating lights between CPU and RAM.

Not sure how trustworthy ChatGPT is, but it stated it's likely the motherboard. In truth, it was working fine a few hours before it started acting this way, but when trying to attach something to my desk...a small item the size of a palm fell on the top of the tower which led to not turning on. Reseated the CMOS battery and it came back to life but started sizzling with no external peripherals turning on.

Any help or advice would be appreciated. I'll list my specs down below.

CPU: Intel i9-9900k 3.60 GHZ 9th gen
Motherboard: MSI MPG Z390 GAMING PLUS
RAM: 32 GB (4x 8 GB)
PSU: CX750M
GPU: Nvidia 2070 Super
Heatsink: Corsair AIO (idk which)

 

[Paperdoc]

That sizzling certainly sounds like a power component problem. To be clear, I presume you mean it is centered in the mobo area between the CPU socket and the rear output socket panel. That is normally where the mobo Voltage Control system is. If any of the Voltages it regulates is wrong that WILL cause malfunctions somewhere. And it IS a mobo problem - you generally cannot diagnose and replace faulty components in there. Is the mobo still under warranty?

 

[nexus115]

That sizzling certainly sounds like a power component problem. To be clear, I presume you mean it is centered in the mobo area between the CPU socket and the rear output socket panel. That is normally where the mobo Voltage Control system is. If any of the Voltages it regulates is wrong that WILL cause malfunctions somewhere. And it IS a mobo problem - you generally cannot diagnose and replace faulty components in there. Is the mobo still under warranty?

MOBO is likely not under warranty. I had got it pre-covid. All signs do point to MOBO being the issue. I'll have to check is there's still any similar to this.