[SOLVED] PC making buzzing/electrical sound but when ı touch the case it stops

[bertab]

When ı entered a game like Forza 4 ,witcher 3, world war z, cs:go, valorant etc. etc. etc. pc making a buzzing/electrical sound but
if ı touch the case it stops(continuously),
pushing the psu cable into the case it stops(continuously),
and I folded the paper and put it under the left front foot it stops but case is shaking

Can you help me guys?
Case: ASUS TUF GAMING GT301
GPU: ASUS RADEON DUAL RX 5700 XT EVO OC 8GB
PSU: XIGMATEK X-POWER 650W 80PLUS

 

[Ralston18]

No electrical shock or tingling correct?

Just vibration/resonance - fans perhaps. Could be something loose inside - touching the case or cable dampens the vibration.

Power down, unplug, open the case.

Clean out dust and debris. Look for loose screws or other items in the case. Look for cables that could be coming in contact with fans.

Verify by sight and feel that all connectors, cards, RAM, and jumpers are fully and firmly in place.

Likewise verify that all brackets, fans, housings, drives are firmly in place. Snug up, but do not over tightened all screws.

If pushing in the PSU cable stops the vibration start there. Tighten fan screws and case screws - ensure that all are evenly tightened.