Question Monitor doesn't display anything. When PC is turned on, fan turns on for about 3 seconds then it turns off ?

[jhuju]

Monitor doesn't display anything. When the PC is turned on, fan turns on for about 3 seconds then it turns off. Fan keeps doing that until the PC is turned off.

This started happening after I changed the processor to a new one and then put the previous one. Before I put the new one, and after I did, everything functioned properly. It was when I put back the previous one when the problem started. Now it won't boot with either processors.

I disconnected everything but the power supply, the motherboard, the processor, 1 stick of ram and the cpu fan and the problem still persisted.

I noticed the pins in the processor's socket to be bent. Could it be I accidentally damaged this piece and this is why it doesn't boot?

 

[DaleH]

Pc doesnt display anything. When pc is turned on, fan turns on for about 3 seconds then it turns off. Fan keeps doing that until pc is turned off.
This started happening after I changed the processor to a new one and then put the previous one. Before I put the new one, and after I did, everything functioned properly. It was when I put back the previous one when the problem started. Now it won't boot with either processors.
I disconnected everything but the power supply, the motherboard, the processor, 1 stick of ram and the cpu fan and the problem still persisted.

I noticed the pins in the processor's socket to be bent. Could it be I accidentally damaged this piece and this is why it doesn't boot?

Yes. Definitely.

 

[jhuju]

Oh no. What can I do now?

 

[digitaldata77]

Hi, this is most unfortunate, but perhaps a repair shop can fix the bent socket pins for a price. Otherwise if it too damaged you will have to buy another motherboard. Just before removing and replacing the CPU it is CRITICAL to NOTE which corner on the socket the arrow on the CPU is located BEFORE you remove it from the socket. Correct orientation is critically important with the installation of the CPU into the socket on any motherboard. When done correctly the CPU will drop into place. Just information for future use.

 

[jhuju]

Alright, so I acquired another motherboard, but when I press the power button, nothing happens. The CPU does not heat up, the fan doesn't spin even a little, there are no beeps, nothing happens. The only reaction I get is when I plug in the motherboard, a led that reads "R94 5VSB_LED1" lightens up in amber yellow color. I think the motherboard I acquired is dead. What do you think?

 

[Aeacus]

What do you think?

Full system specs, including PSU make and model (or part number) is? Also, how old the PSU is, and was the PSU bought new or used/refurbished?

so I acquired another motherboard

Acquired? 🤔
Bought used? Was donated? Is 2nd MoBo brand new or used?

 

[digitaldata77]

Your Power Supply Unit seems to be a possible problem.

 

[jhuju]

Full system specs, including PSU make and model (or part number) is? Also, how old the PSU is, and was the PSU bought new or used/refurbished?


Acquired? 🤔
Bought used? Was donated? Is 2nd MoBo brand new or used?

The PC is a Dell Inspiron 580s. Description of components of that pc:
Motherboard: Dell 0C2KJT A00
Power Supply 250 watts
Intel Core i3 550 (73 watts)
Ram DDR3 4 Hynix sticks of 2GB of ram each

The new motherboard isn't brand new, it is used.

Your Power Supply Unit seems to be a possible problem.

That's odd, because the first motherboard worked properly until I attempted to replace the processor.



Thanks everyone your help!

 

[Aeacus]

The PC is a Dell Inspiron 580s. Description of components of that pc:
Motherboard: Dell 0C2KJT A00
Power Supply 250 watts
Intel Core i3 550 (73 watts)
Ram DDR3 4 Hynix sticks of 2GB of ram each

That's old PC + then some. CPU alone is 15 years old.

Most likely issue: dead PSU.

PSUs do not last forever (actually nothing lasts), let alone that one in the Dell. 5 years tops (and that's very generous). Anything longer and you're pushing your luck.

Do note that even when you replaced your MoBo and now, go with another PSU (if you can find one that is compatible with that build, that is), there is no guarantee that build powers on. Since when one MoBo died (most likely due to PSU overload), it can easily kill the 2nd MoBo as well.

With PSU failure, you can look everything that was connected to the PSU - dead. Aka your whole build.

Best to look towards completely new and more modern PC.