[SOLVED] Need some help diagnosing my PC’s issue!

[coocolad]

A while back my PC started this trend where after playing a game for a while suddenly it would get super laggy and the FPS would drop to an unplayable level, naturally I figured it was throttling and needed some TLC cleaning- unfortunately this did not fix the issue. I decided to factory wipe the PC before working with it due to its general slowdown however a few hours after doing so it crashed and shut down. After that night the PC won’t even power up, the power light will come on and the fans will try to spin for a quick moment over and over until I turn off power to the power supply. I honestly have no idea what part or parts may be causing this. My thoughts was maybe the RAM and Power supply itself? Here is my system.

CPU: Intel Pentium G4560 3.5GHz Dual-Core Processor
Motherboard: ASRock B250M Pro4 Micro ATX LGA1151 Motherboard
Memory: G.Skill NT Series 8GB (2 x 4GB) DDR4-2400 Memory
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive
Video Card: Asus Radeon RX 480 4GB Dual Video Card
Case: Zalman R1 (White) ATX Mid Tower Case
Power Supply: SeaSonic S12II 520W 80+ Bronze Certified ATX Power Supply

 

[logainofhades]

I would probably say motherboard, or PSU, in this case. I would start with PSU. While it was a good unit, back in the day, it is a bit old.

 

[geofelt]

If you are using the stock intel cooler, it has likely come loose and is not cooling properly.
I might also relocate the top fan to the front for additional cooling.

----------------how to mount the stock Intel cooler--------------

The stock Intel cooler can be tricky to install.
A poor installation will result in higher cpu temperatures.
If properly mounted, you should expect temperatures at idle to be 10-15c. over ambient.

To mount the Intel stock cooler properly, place the motherboard on top of the foam or cardboard backing that was packed with the motherboard.
The stock cooler will come with paste pre applied, it looks like three grey strips.
The 4 push pins should come in the proper position for installation, that is with the pins rotated in the opposite direction of the arrow,(clockwise)
and pulled up as far as they can go.
Take the time to play with the pushpin mechanism until you know how they work.
Orient the 4 pins so that they are exactly over the motherboard holes.
If one is out of place, you will damage the pins which are delicate.
Push down on a DIAGONAL pair of pins at the same time. Then the other pair.
When you push down on the top black pins, it expands the white plastic pins to fix the cooler in place.
If you do them one at a time, you will not get the cooler on straight.
Lastly, look at the back of the motherboard to verify that all 4 pins are equally through the motherboard, and that the cooler is on firmly.
This last step must be done, which is why the motherboard should be out of the case to do the job. Or you need a case with a opening that lets you see the pins.
It is possible to mount the cooler with the motherboard mounted in the case, but you can then never be certain that the push pins are inserted properly
unless you can verify that the pins are through the motherboard and locked.

If you should need to remove the cooler, first run the cpu to heat it up and soften the paste before shutting down and powering off the pc. That makes it easy to unstick the old cooler.
Turn the pins counter clockwise to unlock them.
You will need to clean off the old paste and reapply new if you ever take the cooler off.
Clean off old paste with alcohol and a lint free paper like a coffee filter.
Apply new paste sparingly. A small rice sized drop in the center will spread our under heat and pressure.

It is hard to use too little.
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