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No Monitor, Mouse, & Keyboard


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#31
phillpower2

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Try removing all RAM and using the appropriate video port on the MB, if you get either two or three beeps the issue is graphics related.

 

Update:  I found compatible RAM & installed with the other Ram.  Same problems, but no beeps when booting.

 

Your reply #32, the fact that you got no error beeps when the RAM was in the board would normally suggest that things were ok with the power on self test (POST) up to the point that the graphics solution had been checked, this the reason why we needed to know if the add on GPU was present or if the integrated graphics were connected.

 

0 beep with the RAM in the board = either a bad MB or bad MB.

 

1 beep = the hardware has passed the POST.

 

2 or 3 beeps = memory issues, this may also include any memory that the graphics solution relies on for support.

 

Mind if I ask, why the need to type in large blue text.


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#32
Quartz

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No ram, monitor plugged into MB, no beeps.  Reply #32:  Ram in, monitor plugged into MB, video card removed....no beeps.
 

Sorry about the text...shows up normal on this end.

 

I can't think of anything I haven't tried.  


Edited by Quartz, 18 July 2019 - 11:38 AM.

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#33
phillpower2

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No ram, monitor plugged into MB, no beeps.  Reply #32:  Ram in, monitor plugged into MB, video card removed....no beeps.

 

 

Not good news I`m afraid  :(

 

Highest failure rates are as follow PSU, MB, CPU, if it were the PSU the system would not power up and the fact that it does and is able to power the cooling fans etc suggests that there is enough juice being produced to power the CPU and onboard graphics, no error beeps with the RAM removed from the board suggests that it is the MB and being that MBs are more prone to failure than CPUs it does again point more to a bad MB.

 

Inspect the MB to see if there are any bad caps, to help with what to look for, see here

 

Something that i would suggest you do if you can, make sure that your screen is working ok by hooking something else up to it, a notebook type computer etc will do.


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#34
Quartz

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I have never installed a MB & CPU.  Think I should try it?   Any suggestions of MB & CPU to buy?

 

 

I can't complain.  This has been a great PC & easy to work on up to this point.  I think it was built in 2012, & it has beat every HP & DELL that I've owned.  

 

Your help is greatly appreciated!


Edited by Quartz, 18 July 2019 - 01:12 PM.

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#35
phillpower2

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Hello Quartz,

 

Any chance that you can get back to us regarding the other two points that I mentioned in my reply #37.

 

Before purchasing a new MB and CPU I would suggest that you have your computer checked out closer to home by a suitably qualified tech, you may find that the cost of a new PC is less than it would cost for repairing the present system.


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#36
Quartz

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Evidently, my posts are numbered differently. The highest # I show 35.   I have inspected every centimeter of the MB & I can't see anything wrong with it.  Today, I removed the PSU & tested it with a multimeter & it is fine.  Of course, it wasn't under a load. 

 

The last 3-4 times I booted the PC, there were no beeps for any combination I tried. The thing that didn't alert at the time is that the power button would no longer turn off the PC & the reset button does not work, along with the led lights.  I located where they are connected on the MB but I can't find connectors online like mine. One is plugged into the other & then connected at `JFP1.  What would cause the button failure & would this cause the PC not to beep?

 

EDIT:  I forgot to add this.  I have some flash drives that light up.  When I connected 2 of them to the PC, they lit up like they normally do.  Not sure if it they were being read since I have no display. 


Edited by Quartz, Yesterday, 02:51 PM.

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#37
phillpower2

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Good call on checking the PSU with a multi-meter, you are correct in that it is not under any load but if the voltages were within tolerance you would normally expect it to power the computer to the desktop, there is a "but" here regarding the PSU and the MB which we will cover in reply to your second point.

 

The last 3-4 times I booted the PC, there were no beeps for any combination I tried. The thing that didn't alert at the time is that the power button would no longer turn off the PC & the reset button does not work, along with the led lights.  I located where they are connected on the MB but I can't find connectors online like mine. One is plugged into the other & then connected at `JFP1.  What would cause the button failure & would this cause the PC not to beep?

 

 

If I am understanding you correctly, you have a dual lead from the computer case, if correct, one is for JFP1 and the other for the JFP2 header that is along side JFP1,it appears to have become disconnected somehow, test for you addressing the connector issue, with the computer disconnected from the wall socket, press the case power button for 20 seconds or so, ground yourself on the computer case or PSU, disconnect the connector from JFP1, reconnect the computer to the wall socket so that there is power going to the computer, then short out the two pins on the MB as shown in the attachment included below.

 

The USB devices lighting up means that there is power going through the MB

Attached Thumbnails

  • MSI JFP1 power sw pins.jpg

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#38
Quartz

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I could not find this same type of connector online.  Only connects to JFP1.  I wonder if I did something while troubleshooting that made this no longer work.  It was still connected to the MB when it quit working.  Do I short out 6 & 8 as shown on chart you posted?  I don't want risk causing more problems by shorting out the wrong ones.

Attached Thumbnails

  • GEEKS 1.JPG

Edited by Quartz, Today, 04:07 PM.

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#39
Quartz

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I am not sure if I know which cable connects to the back of the front panel.

Attached Thumbnails

  • GEEKS 33.JPG

Edited by Quartz, Today, 05:15 PM.

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