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February 24th, 2022 07:00
Optiplex 7470 HDMI Input and USB Output Questions
I was given an OptiPlex 7470 and have a couple of questions
1) This is the version that has two HDMI ports and one is labeled as the "HDMI in". I have also found the OSD button that is supposed to switch the machine to be a secondary screen. This button doesn't change anything. If I press and hold it then the screen will turn off (while still playing audio) but will not switch to be a monitor for another computer. How do I get it to work as a secondary screen? I use it as a computer for some items but I also have a work laptop (Dell) that I could really use the extra screen with.
HDMI input on the left
From the searching I've done it sounds like maybe it is a graphics card issue? I don't understand what is needed though. Here is what the computer says it is connected to.
2) The one given to me also has a USB 3.0 (male) coming off the base on the back. What is this for?
Over the last two months, I have done extensive searching for the solutions/answers to my questions and nothing I have found applies to the issues I am running into. Please help!
Chino de Oro
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February 24th, 2022 09:00
Hello @brittneykitiara , you need to install Dell On-Screen Display Application to control the brightness bar, change the input source, and turn the screen on or off through the OSD button.
Mary G
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February 24th, 2022 08:00
All in ones have that hdmi in port for game boxes and other devices--not for use as a monitor. OSD is usually for video adjustments. OSD= On Screen Display. Check the manual - Dell OptiPlex 7470 All-in-One Setup and specifications guide
Chino de Oro
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February 24th, 2022 10:00
Also, the USB cable in question could be for optical drive. Check the base, you may have a Dell adjustable stand with a DVD+/-RW module built-in.
brittneykitiara
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February 24th, 2022 11:00
Thank you! This worked! I can't believe I hadn't been able to find that yet.
Regarding the base, it is an adjustable stand with a DVD+/-RW module built-in.
user_6ec233
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October 24th, 2025 16:17
I have a Dell 7470 AOI, but I've forgotten the password after using it for a very long time. Now, I am using it as a monitor, but I don't know how to adjust the brightness. Does anyone know?
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