[cleonard]

After shutting down my desk top Dell Inspiron 545s it won't restart using the manual start button.  Power supply is good, green light on back and orange light inside computer is on.  Start button does nothing.  Please help.

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    cleonard,

 

If you are not getting any error beeps at all then the case switch may need to be replaced but the green LED on the back of the PSU does not mean that the PSU is all good, an explanation below + a link to a thread regarding the same brand and model of computer from 6 years back here

 

Access to the inside of the computer is required to resolve this, are you confident with working inside of a computer;

 

 

As a PSU puts out various voltages +3.3V, +5V and +12V it may appear that the PSU is working correctly but it is not, any significant drop of any output can prevent the system from booting up, the other scenario is a significant increase in the output which can be worse as it can fry one or more major components such as the MB, CPU, Ram, add on video card etc.

 

 

[phillpower2]

    cleonard,

 

If you are not getting any error beeps at all then the case switch may need to be replaced but the green LED on the back of the PSU does not mean that the PSU is all good, an explanation below + a link to a thread regarding the same brand and model of computer from 6 years back here

 

Access to the inside of the computer is required to resolve this, are you confident with working inside of a computer;

 

 

As a PSU puts out various voltages +3.3V, +5V and +12V it may appear that the PSU is working correctly but it is not, any significant drop of any output can prevent the system from booting up, the other scenario is a significant increase in the output which can be worse as it can fry one or more major components such as the MB, CPU, Ram, add on video card etc.

 

 

[cleonard]

Thank you, yes I am comfortable working inside the computer, I'm not well versed inside a computer but I"m not afraid to try.  

[phillpower2]

You are ok with working inside a computer information acknowledged, thank you 

 

The following checks require the computer case to be opened so take the following safety precautions 1st, disconnect the power cord from the wall socket  and take anti static precautions before touching anything inside, you can do this by touching a bare metal part of the case.

 

Lay the computer flat, remove the two side panel retaining screws then slide the side off of the case.

 

Please post any motherboard identification details that you can see, look by the CPU and PCI-E slots for these, once we have the info we need we can do some research.

 

If still the original PSU, please do not be surprised if it is bad, OEM components typically only have a twelve month warranty and lasting any longer is a god send.

[cleonard]

Mother Board info:  These are the numbers on the green board -   DG33M05     and   SE0709         C RU us      E93839

 

On the metal housing off to the side:  AcBel  PC6036                   Cust ID: 241G             ASUS P/N:  04G185021240DE

 

 

 

I hope this helps us get started.  

[phillpower2]

For convenience DG33M05 Mainboard Specs

 

Is there an add on video card fitted or only the MBs integrated video chip.

 

Not the best of PSUs + it is also quite old, not the stock ATX type so not as easy to find a good quality replacement if proven to be bad, your MB has a 4 pin ATX power supply for the CPU and a 24 pin main power supply connector for the MB which means that if you can borrow a stock ATX power supply you would be able to test the other hardware out, just means you would not be able to fit the test PSU into the chassis.

 

Let us know about the video card info for now though please. 

[phillpower2]

Not heard back from you cleonard, do you still require assistance or is the issue now resolved, an update would be appreciated.