Tower not connecting to Peripherals

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Tokiahonta

Thread Starter
Joined
Sep 15, 2019
Messages
2
Hi There,

My tower is not sending a signal to my monitor, keyboard and mouse. I have to continually press it on and off and it usually eventually connects sometimes it takes 10 times, sometimes it takes more than 50.

I have taken apart my tower, cleaned it and rewired it etc. Nothing is working. I just want it to turn on in the first instance.

When it eventually turns on and it runs absolutely fine, no issues.

Any help??
 

cwwozniak

Chuck
Moderator
Joined
Nov 28, 2005
Messages
69,809
Hello Tokiahonta, and welcome to TSG.

Unless you are developing your own operating system software you have posted your problem in the incorrect forum on this site. If your computer is running some version of Windows, it should have probably been posted to our hardware forum. Please advise if this is the case and I will request a moderator move for you.

If this is a standard computer from a major manufacturer, please give us the name of the manufacturer and the full and exact model number of the computer. Otherwise please provide a list of the manufacturers and model numbers of all the major components.

When you say, "I have to continually press it on and off" do you mean a power button on the front of the computer? If so, does anything happen at all when you press the button for the first time? Do any lights on the tower come on? Do fans spin? Can you hear hard drive activity? Do you hear any beep noises from the tower?
 

Tokiahonta

Thread Starter
Joined
Sep 15, 2019
Messages
2
Hello Tokiahonta, and welcome to TSG.

Unless you are developing your own operating system software you have posted your problem in the incorrect forum on this site. If your computer is running some version of Windows, it should have probably been posted to our hardware forum. Please advise if this is the case and I will request a moderator move for you.

If this is a standard computer from a major manufacturer, please give us the name of the manufacturer and the full and exact model number of the computer. Otherwise please provide a list of the manufacturers and model numbers of all the major components.

When you say, "I have to continually press it on and off" do you mean a power button on the front of the computer? If so, does anything happen at all when you press the button for the first time? Do any lights on the tower come on? Do fans spin? Can you hear hard drive activity? Do you hear any beep noises from the tower?

Apologies, tower lights up and fans are running fine. And yes the on and off button on the front of the tower. No beeping noises coming from tower either.
 

cwwozniak

Chuck
Moderator
Joined
Nov 28, 2005
Messages
69,809
Nothing to apologize about. A mod has moved this thread to the right forum.

It does sound like a hardware problem. Many motherboards either have audible beep codes or onboard status LEDs that indicate if the boards passes Power On Self Test or where it has failed. Please answer ...
If this is a standard computer from a major manufacturer, please give us the name of the manufacturer and the full and exact model number of the computer. Otherwise please provide a list of the manufacturers and model numbers of all the major components.
 

crjdriver

Moderator
Joined
Jan 2, 2001
Messages
44,215
What you describe is a classic pw supply issue. What happens is that when the pw supply is OFF, the capacitors loose their charge. When the system is switched ON, there is not enough pw to boot. After a few retries, the caps come up and the system will boot.
To test, swap in a know good pw supply. Note you do not have to connect everything; simply connect atx and aux pw connectors to the motherboard. Hit the ON button and see if it will complete POST. If so, shutdown and fully install a new pw supply.
 
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