Monitor fails to connect to Dell Inspiron 3650 desktop: motherboard failure - TechRepublic
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February 10, 2023 at 07:12 PM
gak1952

Monitor fails to connect to Dell Inspiron 3650 desktop: motherboard failure

by gak1952 . Updated 3 years, 3 months ago

Hi,

I have a Dell Inspiron 3650 desktop running Windows 10 Home.. It no longer connects to a monitor with the monitor displaying “No connection”.

I am pretty sure the problem is the monitor port rather than my monitors or monitor cables. I have tested the 3650 with 2 monitors and 2 monitor cables that a) previously worked with the 3650 and still work with a Dell T7910 workstation.

Also to begin with I only occasionally lost monitor connection. I could reconnect by jiggling the cable/monitor in the port connection. Eventually, this stopped working.

I have opened the PC and everything seems attached and clean with no signs of damaged components. It still powers up. I do not know if it boots into Windows as I have not monitor connection.

I remember earlier Dells had 4 lights that indicated errors (all green OK, combinations of green and orange, various kinds of errors). Do the latest desktops lack this feature.

I have also changed the battery to no effect.

I have a video card but my understanding is that even if this card is malfunctioning, the monitor should still connect to the PC. Am I right?

My conclusion is that the monitor port is malfunctioning. In consequence, my only solution is to buy a new motherboard.(I do not want to be soldering a monitor port to a motherboard.) Am I right?

I say ‘new motherboard’ because I worry how much life might be left in a used/refurbished one. I plan buying a new motherboard on eBay

My thanks in advance for your thoughts, suggestions and kind help

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