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August 10th, 2021 11:00

Optiplex 7040 micro tower internal usb 2.0 ?

Hello,

according to the owner's manuel (table 29), Optiplex 7040 micro tower (7040M) would have an internal usb 2.0 connector :

"USB 2.0 (front/back/internal) : 0/0/1"

Is this a mistake ? If no, could you help to locate this connector ?

Regards.

7 Technologist

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10.6K Posts

August 12th, 2021 10:00

I think I have figured it out. It looks like a Dell documentation error.

Dell 9020M spec says USB 2.0 (Front/Rear/Internal) 0/0/1

but comprehensive 9020 spec says Internal USB 2.0 (MT only) and does not mention any internal usb 2.0 for Micro.

comprehensive 7040 spec does not mention any internal usb 2.0 for M.  M is considered a special animal while the rest MT/SFF grouped together.

10 External USB: 6 x 3.0 (2 front/4 rear) and 4 x 2.0 (2 front/2 rear - 1 front with PowerShare); 1 Internal USB 2.0; 1 RJ-45; 1 Serial; 2 Display Port 1.2; 1 HDMI 1.4; 2 PS/2; 1 UAJ, 1 Line-out; 1 VGA (optional)


Micro: 6 External USB3.0 (2 front/4 rear – 1 front with PowerShare); 1 RJ-45; 1 HDMI 1.4; 1 Display Port 1.2; 1 UAJ (front); 1 Line- out(front); additional Display Port 1.2 (optional); 1 VGA (optional); Serial+PS2 (optional).

0A7283EF-80A5-40A2-9BD5-5D43DEC53300.jpeg

Moderator

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25.3K Posts

August 11th, 2021 05:00

We tried reaching you on a private message asking for the Service Tag number to ascertain the warranty but did not receive a response. Please feel free to reply to the private message whenever you are available.

August 11th, 2021 09:00

This is a "before to buy" question.

The manuel talks about an internal USB 2.0 connector, but the "System board layout" in the same manuel doesn't show it. I would like to be sure before to buy.

1 Rookie

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145 Posts

August 11th, 2021 10:00

But this needs a special cable to be able to use it.

August 11th, 2021 10:00

Hello,

thank you for your help. But this photo doesn't match with the micro tower model.

Here's the link for the manuel :

https://dl.dell.com/topicspdf/optiplex-7040-desktop_owners-manual2_en-us.pdf

The motherboard is a lot smaller.

1 Rookie

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145 Posts

August 11th, 2021 10:00

On this photo it's next to the "3" for DDR4 RAM visible.

7 Technologist

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10.6K Posts

August 11th, 2021 20:00

There is an unlabeled multi pin connector on motherboard.  ? used for internal USB2.0?  no old fashioned 9 pin usb port on board.

 

ka02R000000126FQAQ_en_US_43.jpeg

1 Rookie

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145 Posts

August 11th, 2021 21:00

OK, this an MFF version, I thought You were speaking about the MT version.

Sorry.

August 12th, 2021 06:00

This connector is labeled : "KB_MS_SERIAL" and has 24 pins. That seems to be used by Dell for PS2/Serial optional connector. According to table 29 in the manuel, this also an option for 7040M. Pictures of this expansion (from internet) show a 24-pin cable with one or 2 PS/2 and one serial (COM) ports.

So i don't think it is related to an USB 2.0 connector.

August 12th, 2021 08:00

In your yellow circle, it's just the viewpoint, there are 2 clips for the battery. The motherboard model is 96JG8. You can easily find other viewpoint.

1 Rookie

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145 Posts

August 12th, 2021 09:00

3040b.jpg

I see the same thing here on my ex 3040MFF machine. But I have never seen a cable that I could connect to it.

1 Rookie

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145 Posts

August 12th, 2021 09:00

OK, that's the PS2/Serial port daughter board connector (optional). Not USB 2.0

7 Technologist

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10.6K Posts

August 12th, 2021 09:00

If after long peruse of motherboard and all connectors accounted for but none usb2.0, then it seems what Dell spec meant for “internal” is not on the motherboard.  we are misunderstanding the spec and looking at the wrong place.

3040M also says 1 internal usb 2.0 but none looks like it on board.

redxps630_0-1628786922380.jpeg

Nor is 3020M

redxps630_1-1628787348443.jpeg

 

August 12th, 2021 15:00

I also think about a documentation error, but i wanted to be sure. Thank you both for your help.

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