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#1
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Card reader words externally, but not internally
I have a card reader that I previously connected via USB port and worked
fine. After upgrading my mobo, I decided to connect the same card reader to a set of USB pins on the motherboard (accomplished by connecting the included adapter with a female USB on one end and connectors for motherboard pins on the other). Now the card reader isn't discovered by windows xp, not even when displaying hidden devices in device manager. The card reader also doesn't show up when I boot to Mandriva If this was simply a driver issue, I would expect the card reader to at least show up, if not work correctly. It seems to me that the device isn't getting power. Not sure where to go from here. |
#2
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Card reader words externally, but not internally
Flip Wilson wrote:
I have a card reader that I previously connected via USB port and worked fine. After upgrading my mobo, I decided to connect the same card reader to a set of USB pins on the motherboard (accomplished by connecting the included adapter with a female USB on one end and connectors for motherboard pins on the other). Now the card reader isn't discovered by windows xp, not even when displaying hidden devices in device manager. The card reader also doesn't show up when I boot to Mandriva If this was simply a driver issue, I would expect the card reader to at least show up, if not work correctly. It seems to me that the device isn't getting power. Not sure where to go from here. Could you mention the brand and model number of motherboard ? Some motherboards have less than ideal pin assignments, and in some cases, you have to modify the adapter. The diagram at the bottom of this page, shows how the wiring on a 2x5 can be moved around, if it turns out the motherboard and adapter are not compatible. The little plastic tabs can be lifted with a hobby knife, and the pin and wire then slide out. I did one just the other day, and it is pretty hard to hold the tab open without snapping it, and guide the pin and wire out at the same time. Took a few tries. http://www.frontx.com/head_con.html Also, if you mention the card reader make and model, maybe I can download a manual for that as well and have a look. Paul |
#3
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Card reader words externally, but not internally
On Wed, 05 Nov 2008 00:00:51 -0500, Paul wrote:
Flip Wilson wrote: I have a card reader that I previously connected via USB port and worked fine. After upgrading my mobo, I decided to connect the same card reader to a set of USB pins on the motherboard (accomplished by connecting the included adapter with a female USB on one end and connectors for motherboard pins on the other). Now the card reader isn't discovered by windows xp, not even when displaying hidden devices in device manager. The card reader also doesn't show up when I boot to Mandriva If this was simply a driver issue, I would expect the card reader to at least show up, if not work correctly. It seems to me that the device isn't getting power. Not sure where to go from here. Could you mention the brand and model number of motherboard ? Some motherboards have less than ideal pin assignments, and in some cases, you have to modify the adapter. The diagram at the bottom of this page, shows how the wiring on a 2x5 can be moved around, if it turns out the motherboard and adapter are not compatible. The little plastic tabs can be lifted with a hobby knife, and the pin and wire then slide out. I did one just the other day, and it is pretty hard to hold the tab open without snapping it, and guide the pin and wire out at the same time. Took a few tries. http://www.frontx.com/head_con.html Also, if you mention the card reader make and model, maybe I can download a manual for that as well and have a look. Paul Mobo is an XFX nForce 610i GeForce7050. Don't know about the card reader. May be a Creative I/O. Certainly wasn't was memorable brand. |
#4
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Card reader words externally, but not internally
Flip Wilson wrote:
On Wed, 05 Nov 2008 00:00:51 -0500, Paul wrote: Flip Wilson wrote: I have a card reader that I previously connected via USB port and worked fine. After upgrading my mobo, I decided to connect the same card reader to a set of USB pins on the motherboard (accomplished by connecting the included adapter with a female USB on one end and connectors for motherboard pins on the other). Now the card reader isn't discovered by windows xp, not even when displaying hidden devices in device manager. The card reader also doesn't show up when I boot to Mandriva If this was simply a driver issue, I would expect the card reader to at least show up, if not work correctly. It seems to me that the device isn't getting power. Not sure where to go from here. Could you mention the brand and model number of motherboard ? Some motherboards have less than ideal pin assignments, and in some cases, you have to modify the adapter. The diagram at the bottom of this page, shows how the wiring on a 2x5 can be moved around, if it turns out the motherboard and adapter are not compatible. The little plastic tabs can be lifted with a hobby knife, and the pin and wire then slide out. I did one just the other day, and it is pretty hard to hold the tab open without snapping it, and guide the pin and wire out at the same time. Took a few tries. http://www.frontx.com/head_con.html Also, if you mention the card reader make and model, maybe I can download a manual for that as well and have a look. Paul Mobo is an XFX nForce 610i GeForce7050. Don't know about the card reader. May be a Creative I/O. Certainly wasn't was memorable brand. After registering on the XFX site, this is the manual I got for the 610i/7050. There are two models, and both models seem to have the same manual. (MG-61MI-7059 and MG-610I-7059). Even though one of those motherboards has two onboard 2x5 USB connectors, and the other has three of them. http://www.xfxsupportb.co.uk/MCP73%2...0%20070928.zip The USB pinout looks standard. There are two ways to interpret the "No Connect" label of the tenth pin. Some interpret to mean "make no connection", meaning there could be something electrically connected, but the user is not to connect to it. That definition is generally frowned upon (designers shouldn't do that!). Ideally, NC means there is no electrical connection of the motherboard to the pin, so the cable that is connected will make no difference, if it connects something to the tenth pin. (My motherboard manual calls pin 10 "dummy", which is another way to label it.) 1 VCC X X VCC 2 3 D- X X D- 4 5 D+ X X D+ 6 7 GND X X GND 8 9 X NC 10 NC = No Connect The original intent of that header, may have been to have shield GND on the tenth pin. The shield ground would connect to the foil or braid surrounding the other wires (good USB cables are shielded). But the cable assemblies in use now, might just as easily connect the shield to the same ground as pins 7 and 8. The header has two interfaces on it. Pins 1-3-5-7 make a four pin interface supporting one USB2 device. Pins 2-4-6-8 make a second interface supporting a second USB2 device. Some card readers come with a 1x4 internal cable, which would connect to one column or the other column of pins. When the adapter cable sports a 2x5 connector on the end, the purpose of the missing pin, is for keying. It is intended to prevent the end user from plugging it in the wrong way. In the case of the 1x4 type cable, there is more potential for screwing it up. (You could easily reverse the connector 180 degrees, or shift it down a pin.) So I don't see anything wrong with this one. There is no "OC#" on the tenth pin, and the other pins look "normal". Inserting the cable wrong, could make all sorts of trouble for you. Paul |
#5
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Card reader words externally, but not internally
On Wed, 05 Nov 2008 23:47:19 -0500, Paul wrote:
Flip Wilson wrote: On Wed, 05 Nov 2008 00:00:51 -0500, Paul wrote: Flip Wilson wrote: I have a card reader that I previously connected via USB port and worked fine. After upgrading my mobo, I decided to connect the same card reader to a set of USB pins on the motherboard (accomplished by connecting the included adapter with a female USB on one end and connectors for motherboard pins on the other). Now the card reader isn't discovered by windows xp, not even when displaying hidden devices in device manager. The card reader also doesn't show up when I boot to Mandriva If this was simply a driver issue, I would expect the card reader to at least show up, if not work correctly. It seems to me that the device isn't getting power. Not sure where to go from here. Could you mention the brand and model number of motherboard ? Some motherboards have less than ideal pin assignments, and in some cases, you have to modify the adapter. The diagram at the bottom of this page, shows how the wiring on a 2x5 can be moved around, if it turns out the motherboard and adapter are not compatible. The little plastic tabs can be lifted with a hobby knife, and the pin and wire then slide out. I did one just the other day, and it is pretty hard to hold the tab open without snapping it, and guide the pin and wire out at the same time. Took a few tries. http://www.frontx.com/head_con.html Also, if you mention the card reader make and model, maybe I can download a manual for that as well and have a look. Paul Mobo is an XFX nForce 610i GeForce7050. Don't know about the card reader. May be a Creative I/O. Certainly wasn't was memorable brand. After registering on the XFX site, this is the manual I got for the 610i/7050. There are two models, and both models seem to have the same manual. (MG-61MI-7059 and MG-610I-7059). Even though one of those motherboards has two onboard 2x5 USB connectors, and the other has three of them. http://www.xfxsupportb.co.uk/MCP73%2...0%20070928.zip The USB pinout looks standard. There are two ways to interpret the "No Connect" label of the tenth pin. Some interpret to mean "make no connection", meaning there could be something electrically connected, but the user is not to connect to it. That definition is generally frowned upon (designers shouldn't do that!). Ideally, NC means there is no electrical connection of the motherboard to the pin, so the cable that is connected will make no difference, if it connects something to the tenth pin. (My motherboard manual calls pin 10 "dummy", which is another way to label it.) 1 VCC X X VCC 2 3 D- X X D- 4 5 D+ X X D+ 6 7 GND X X GND 8 9 X NC 10 NC = No Connect The original intent of that header, may have been to have shield GND on the tenth pin. The shield ground would connect to the foil or braid surrounding the other wires (good USB cables are shielded). But the cable assemblies in use now, might just as easily connect the shield to the same ground as pins 7 and 8. The header has two interfaces on it. Pins 1-3-5-7 make a four pin interface supporting one USB2 device. Pins 2-4-6-8 make a second interface supporting a second USB2 device. Some card readers come with a 1x4 internal cable, which would connect to one column or the other column of pins. When the adapter cable sports a 2x5 connector on the end, the purpose of the missing pin, is for keying. It is intended to prevent the end user from plugging it in the wrong way. In the case of the 1x4 type cable, there is more potential for screwing it up. (You could easily reverse the connector 180 degrees, or shift it down a pin.) So I don't see anything wrong with this one. There is no "OC#" on the tenth pin, and the other pins look "normal". Inserting the cable wrong, could make all sorts of trouble for you. Paul The card reader I'm using only has a 1x5 connector, so there were only two ways to connect the thing. Unfortunately, neither worked. |
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