7040 motherboard uses proprietary design that incorporates front IO ports as permanent built in part of mobo and does not have a separate traditional front panel IO.
it has a media card reader MCR connector and internal usb INT USB connector (9+4 pin) on board.
Instead of F_USB it has clearly marked INT_USB connector as well as mentioned by @redxps630 MCR connector which on older models most likely also uses USB standard (more recent models have switched card reader sockets to PCIe interface).
Thank You for Your Kind and Helpful response . May i please inquire further as i am quite ignorant of hardware technical matters as i am merely a software developer in particular can either of the two connections mentioned i.e. MCR or INT USB be utilized or converted or adapted somehow as an F_USB connector for purpose of connecting to internal WiFi adapter which requires F_USB as most or all internal such adapters seem to require . Thank You Most Kindly
Generally without a technical qualification and much of a luxury to put enough effort into it - probably the simplest solution might be just getting right cable and connecting it into external USB jack. Something like this pictured below:
(just be take care of a sharp edges on a case to avoid cutting it over the time, also to fix it firmly so it wouldn't slide loose inside).
INT_USB on this model is reserved for WiFi modules and has both: USB + CLINK pins, I suspect USB part mostly for BT / BlueTooth functionality. 4-pin group on a left side is for C-Link: (Reset, Data, Clock {like SDA/SCL for I2C bus/interface}) Right side has 2 lines of USB 2.0 (Ground, D+, D-, +5V) Check pinout here in post by @speedstep : https://www.dell.com/community/Optiplex-Desktops/7040-internal-USB-header-accept-10-pin-USB-connector/m-p/8193191/highlight/true#M58677 (There are reports what +5V might not be supplied on some motherboards depending on met conditions or mb revision, e.g if bios doesn't detect right module, perhaps one or two pins even have to be shorted for detection to happen, I would also check if it has right voltages on power pins and validate ground ones before connecting anything there to avoid the risk of frying equipment).
This MB doesn't support 13-pins required for CNVio (Gen1) interface as it came later with Gen9 CPUs (or CNVio2 with Gen10/Gen11 CPUs), e.g. 2 pins (P/N or +/-) for each of 2 lanes (channel0, Channel1) for each of Receive/Transfer (Rx/Tx) then +&- for clock for Rx/Tx separately, then general clock.
As for Blue MCR connector - I've seen a range of possible pinouts, all have to be validated first, I think it's similar they use on some other PC models including XPS and Inspiron (within CPU generation proximity), not the same as black one and keep an eye on key pin, N/A one, Dell has a habit to keep specification undisclosed and changing from model to model, there might be requirement to short ID pin in order to enable it during boot detection logic.
some background info: It is more common to see Wi-Fi +BT combo M.2 card in Dell desktop pc including Optiplex later models (7060 etc.) or older model Optiplex Micro only. The earlier Optiplex model such as 7010/7020/7040/7050 MT/SFF motherboard are not equipped with M.2 slot for WLAN (7040 SFF M.2 Socket 3: SSD Drive Socket with SATA or up to four PCIe lanes). Instead Dell offers PCIex1 add in card as optional WiFi for MT/SFF.
In contrast because Optiplex Micro cannot support add in card physically so there is on board M.2 WLAN (Socket 1: Connectivity socket for Wi-Fi ®, Bluetooth) in 9020M or in 7040M,
What is difference between M.2 vs PCIe add in WLAN? Here is the crux. They both use PCIe interfaces, just the M.2 one comes with 2 lanes while the PCIe slot is only x1, which is why it needs the USB connector to handle the bluetooth. This explains why you would need an internal USB cable to connect to motherboard INT_USB header if you install a Wi-Fi+BT card in PCIex1 slot. Without this cable, there is no BT (as experienced by this user)
PS Dell OptiPlex 7060 SFF comes equipped with an on-board M.2 2230 (WiFi/BT) slot. This slot is used for a Wi-Fi and Bluetooth combo card.
As explained by Dell moderator, in older Optiplex models such as 7040/7050 and 3040/3050 SFF or MT, regarding the Wi-Fi/BT combo M.2 card:
The M.2 wireless card doesn't fit into the motherboard M.2 slot, it fits into a PCIe x1 card (Dell part number D8W2M)
The part number for the card includes an internal USB cable. It connects via a connector on the motherboard labelled WF_BT_USB (it's just next to the CMOS battery)
Dell PN: 07N43 / DP/N: 007N43 Connection cable for Dell PCIe Network Card to Mother Board
No need to decipher the pinout of Dell 9+4 pin INT_USB header on 7040 SFF, as the Dell cable is proprietary 14 pin designed for the header. Plug n play.
In Optiplex 3050/7050 MT/SFF Dell has improved silkscreen on motherboard for the 9+4 header which is now clearly WF_BT_USB.
PS You would also need antenna, 2 x part number TFMDF (Whip Antenna, Foxconn)
redxps630
9 Legend
9 Legend
•
11.5K Posts
1
December 19th, 2022 22:00
7040 motherboard uses proprietary design that incorporates front IO ports as permanent built in part of mobo and does not have a separate traditional front panel IO.
it has a media card reader MCR connector and internal usb INT USB connector (9+4 pin) on board.
sam55todd
235 Posts
1
December 20th, 2022 05:00
Instead of F_USB it has clearly marked INT_USB connector as well as mentioned by @redxps630 MCR connector which on older models most likely also uses USB standard (more recent models have switched card reader sockets to PCIe interface).
Both options are outlined on image below:
BernardIE5317
10 Posts
0
December 20th, 2022 10:00
Thank You for Your Kind and Helpful response . May i please inquire further as i am quite ignorant of hardware technical matters as i am merely a software developer in particular can either of the two connections mentioned i.e. MCR or INT USB be utilized or converted or adapted somehow as an F_USB connector for purpose of connecting to internal WiFi adapter which requires F_USB as most or all internal such adapters seem to require . Thank You Most Kindly
sam55todd
235 Posts
1
December 20th, 2022 13:00
Generally without a technical qualification and much of a luxury to put enough effort into it - probably the simplest solution might be just getting right cable and connecting it into external USB jack.
Something like this pictured below:
(just be take care of a sharp edges on a case to avoid cutting it over the time, also to fix it firmly so it wouldn't slide loose inside).
INT_USB on this model is reserved for WiFi modules and has both: USB + CLINK pins,
I suspect USB part mostly for BT / BlueTooth functionality.
4-pin group on a left side is for C-Link: (Reset, Data, Clock {like SDA/SCL for I2C bus/interface})
Right side has 2 lines of USB 2.0 (Ground, D+, D-, +5V)
Check pinout here in post by @speedstep :
https://www.dell.com/community/Optiplex-Desktops/7040-internal-USB-header-accept-10-pin-USB-connector/m-p/8193191/highlight/true#M58677
(There are reports what +5V might not be supplied on some motherboards depending on met conditions or mb revision, e.g if bios doesn't detect right module, perhaps one or two pins even have to be shorted for detection to happen, I would also check if it has right voltages on power pins and validate ground ones before connecting anything there to avoid the risk of frying equipment).
This MB doesn't support 13-pins required for CNVio (Gen1) interface as it came later with Gen9 CPUs (or CNVio2 with Gen10/Gen11 CPUs), e.g. 2 pins (P/N or +/-) for each of 2 lanes (channel0, Channel1) for each of Receive/Transfer (Rx/Tx) then +&- for clock for Rx/Tx separately, then general clock.
As for Blue MCR connector - I've seen a range of possible pinouts, all have to be validated first, I think it's similar they use on some other PC models including XPS and Inspiron (within CPU generation proximity), not the same as black one and keep an eye on key pin, N/A one, Dell has a habit to keep specification undisclosed and changing from model to model, there might be requirement to short ID pin in order to enable it during boot detection logic.
BernardIE5317
10 Posts
0
December 20th, 2022 19:00
Thanks to All for Your Kind and Helpful replies I found a similar discussion link below which ends on an optimistic note . Do you regard it as same .
https://community.spiceworks.com/topic/2213911-can-dell-optiplex-7040-s-internal-usb-header-accept-a-10-pin-usb-connector
redxps630
9 Legend
9 Legend
•
11.5K Posts
1
December 20th, 2022 22:00
some background info: It is more common to see Wi-Fi +BT combo M.2 card in Dell desktop pc including Optiplex later models (7060 etc.) or older model Optiplex Micro only. The earlier Optiplex model such as 7010/7020/7040/7050 MT/SFF motherboard are not equipped with M.2 slot for WLAN (7040 SFF M.2 Socket 3: SSD Drive Socket with SATA or up to four PCIe lanes). Instead Dell offers PCIex1 add in card as optional WiFi for MT/SFF.
In contrast because Optiplex Micro cannot support add in card physically so there is on board M.2 WLAN (Socket 1: Connectivity socket for Wi-Fi ®, Bluetooth) in 9020M or in 7040M,
What is difference between M.2 vs PCIe add in WLAN? Here is the crux. They both use PCIe interfaces, just the M.2 one comes with 2 lanes while the PCIe slot is only x1, which is why it needs the USB connector to handle the bluetooth.
This explains why you would need an internal USB cable to connect to motherboard INT_USB header if you install a Wi-Fi+BT card in PCIex1 slot. Without this cable, there is no BT (as experienced by this user)
PS Dell OptiPlex 7060 SFF comes equipped with an on-board M.2 2230 (WiFi/BT) slot. This slot is used for a Wi-Fi and Bluetooth combo card.
redxps630
9 Legend
9 Legend
•
11.5K Posts
1
December 20th, 2022 23:00
As explained by Dell moderator, in older Optiplex models such as 7040/7050 and 3040/3050 SFF or MT, regarding the Wi-Fi/BT combo M.2 card:
The M.2 wireless card doesn't fit into the motherboard M.2 slot, it fits into a PCIe x1 card (Dell part number D8W2M)
The part number for the card includes an internal USB cable. It connects via a connector on the motherboard labelled WF_BT_USB (it's just next to the CMOS battery)
No need to decipher the pinout of Dell 9+4 pin INT_USB header on 7040 SFF, as the Dell cable is proprietary 14 pin designed for the header. Plug n play.
In Optiplex 3050/7050 MT/SFF Dell has improved silkscreen on motherboard for the 9+4 header which is now clearly WF_BT_USB.
PS You would also need antenna, 2 x part number TFMDF (Whip Antenna, Foxconn)