[SOLVED] What is the cause of seeing a brief red light on the 24 pin connector

[Novel8]

I'm not doing a build , but close to it by replacing faulty PS. Results had to make numerous connections to all the MB connectors and my dvd and 2 HD;s. Upon completion, i wanted to check my desktop, with the one side off so i can see the 24 pin. I turned it on, and quickly a red light appeared and disappeared on my 24 pin conn. It was so quiet, and yet the pc was running. I pushed the DVD buttton and the tray opened..without connected to the monitor, i don't know if they were working.

 

[Alabalcho]

How you see a light on piece of hardware which is just wires, pins and plastic? You might have seen some LED thru the wires, but on the connector?

 

[Novel8]

Yes, it had to be a red led.. later on today i am going to connect the monitor and see if my system is ok. I replaced a 500w PS with a 650-700w PS, would that have been too much for the MB to take? I read somewhere about resetting bios , but how and where in the Bios?

 

[thx1138v2]

The motherboard will just take what it needs from the new PSU. Problems only arise when there is not enough available from the PSU.

We don't know what your motherboard is so the following is just a general approach to resetting the BIOS: turn the power off and disconnect the plug on the cord from the wall outlet. .Remove the CMOS backup battery (check the manual for location). Wait 1 minute. While you are waiting remove the CMOS battery jumper or change its position, if there is one. Replace the jumper or restore to the previous position. Insert the CMOS backup battery. You may want to replace it if the system is older. Plug the computer power cord into the computer and then the wall outlet. Power the computer up.

Read your mobo manual for the specifics of your system.

 

[Novel8]

The motherboard will just take what it needs from the new PSU. Problems only arise when there is not enough available from the PSU.

We don't know what your motherboard is so the following is just a general approach to resetting the BIOS: turn the power off and disconnect the plug on the cord from the wall outlet. .Remove the CMOS backup battery (check the manual for location). Wait 1 minute. While you are waiting remove the CMOS battery jumper or change its position, if there is one. Replace the jumper or restore to the previous position. Insert the CMOS backup battery. You may want to replace it if the system is older. Plug the computer power cord into the computer and then the wall outlet. Power the computer up.

Read your mobo manual for the specifics of your system.

Eureka!!! All went well....it seems when one sees a red led lightup on the ATX 24 pin does not necessarily mean...disater, at least not in my case. All went well connecting the monitor and essentials, hd, dvd and printer. To my surprise, when first turning it on and hear one bell only, I assumed all was well, but the surprise is that i hardly hear my desktop's PS.....