[SOLVED] pc's keyboard work good only when i touch the case

[Aymen baaziz]

hello, i just bought new PSU because the old one is burned; when i added it and after the startup, everything work fine except keyboard which types double letters or misses letters like : "ttest" "tsstt" and the only way to make the keyboard work good is to touch pc's case or psu by one hand and the other hand to write like now writing normally, how to fix this problem and what should i do ?

 

[jay32267]

It sounds as though the case isn't grounded.

i would check the outlet to makes sure it's grounded.
I would use a good power cord.
....and if the PSU is good....the case should then be grounded.

 

[jayjr1105]

System specs? Which power supply? Tried a different keyboard yet? Is the keyboard wireless?

 

[rcald2000]

Hello Aymen baaziz. Your issue vaguely reminds me of a previous forum post of mine (below).

Friend gets a continuous mild shock from my PC case

[SOLVED] - Friend gets a continuous mild shock from my PC case

A friend was gifted components from a friend-in-common. Only component missing was a power supply. She ventures to Micro Center and purchases a brand new PowerSpec (micro center branded) power supply. She successfully connects the power supply to the components and powers it on. Problem...

forums.tomshardware.com

When you say "the old one is burned", what precisely happened with the old power supply or computer at that time? The fact that you had a previous issue supposedly with the power supply, and now you're having a new issue that appears somewhat electrical related, I wonder if your motherboard is contacting your metal case and shorting.

If you hadn't mentioned a past power supply issue, I would have simply assumed that your new power supply was malfunctioning and needed return. But now I wonder if your power supply issues are simply the result, and not necessarily the cause, of your issues. Am I correct in assuming that you built this computer? Are you certain that you used only the necessary case stand offs, and didn't use an extra that's improperly contacting the motherboard?

 

[jonnyguru]

hello, i just bought new PSU because the old one is burned; when i added it and after the startup, everything work fine except keyboard which types double letters or misses letters like : "ttest" "tsstt" and the only way to make the keyboard work good is to touch pc's case or psu by one hand and the other hand to write like now writing normally, how to fix this problem and what should i do ?

Are your outlets grounded?

 

[Aymen baaziz]

Hello Aymen baaziz. Your issue vaguely reminds me of a previous forum post of mine (below).

Friend gets a continuous mild shock from my PC case

[SOLVED] - Friend gets a continuous mild shock from my PC case

A friend was gifted components from a friend-in-common. Only component missing was a power supply. She ventures to Micro Center and purchases a brand new PowerSpec (micro center branded) power supply. She successfully connects the power supply to the components and powers it on. Problem...

forums.tomshardware.com

When you say "the old one is burned", what precisely happened with the old power supply or computer at that time? The fact that you had a previous issue supposedly with the power supply, and now you're having a new issue that appears somewhat electrical related, I wonder if your motherboard is contacting your metal case and shorting.

If you hadn't mentioned a past power supply issue, I would have simply assumed that your new power supply was malfunctioning and needed return. But now I wonder if your power supply issues are simply the result, and not necessarily the cause, of your issues. Am I correct in assuming that you built this computer? Are you certain that you used only the necessary case stand offs, and didn't use an extra that's improperly contacting the motherboard?

The old one was doing small noise before half year and every month the noise increase until it stopped working forever
And when i touch i don't feel anything (no shocking) and i did play normally on this outlet several times before

 

[Aymen baaziz]

Are your outlets grounded?

Idk i just know that when i touch the case the keyboard work

 

[jonnyguru]

Idk i just know that when i touch the case the keyboard work

You don't even know if your outlets are grounded?

What country are you in?