If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
USB 2.0/1.1 P4 Mainboard Pin-Out Configuration Help?
My new DFI PS-83BL P4 Springdale chipset motherboard has the usual pin-out
jumpers for attaching additional USB connectors from the front of my case, etc. I've normally seen these as two row setups with 5 pins on the top and 4 pins below like I've tried to graphically depict here below (while looking down at the board from above). Is the assignment of the pins pretty standard just like I've shown below. This graphic came from the manual of a another DFI motherboard which looks like what I think is correct (I think my PS-83BL manual is wrong): Vcc -D +D G Key Pin * * * * * USB 3 * * * * X USB 4 Vcc -D +D G No Pin Vcc -D +D G Key Pin * * * * * USB 5 * * * * X USB 6 Vcc -D +D G No Pin Vcc -D +D G Key Pin * * * * * USB 7 * * * * X USB 8 Vcc -D +D G No Pin __________________________________________________ _ However, my PS-83BL manual shows the pin-out configuration like this below which seems crazy to me: -D G Vcc +D G * * * * * USB 3 / 5 / 7 * * * * X USB 4 /6 / 8 Vcc +D Key -D Key DFI even included an extra back plate with 2 ports and connector cable keyed and wired to fit any of the top configurations (at either USB 3/4 or 5/6 or 7/8). It would smoke my USB devices if plugged in to a pin-out assignment as shown in the DFI manual for my board. Since all their other manuals for their other boards show what I've always believed to be the correct assignments, my conclusion is that their manual is just plain wrong. Am I reasonable in this assumption? I've written to their Tech Support .... should be interesting if they even respond :-) Thanks! |
#2
|
|||
|
|||
Whereas On Sun, 05 Oct 2003 06:27:10 GMT, "Rick"
scribbled: , I thus relpy: My new DFI PS-83BL P4 Springdale chipset motherboard has the usual pin-out jumpers for attaching additional USB connectors from the front of my case, etc. I've normally seen these as two row setups with 5 pins on the top and 4 pins below like I've tried to graphically depict here below (while looking down at the board from above). Is the assignment of the pins pretty standard just like I've shown below. This graphic came from the manual of a another DFI motherboard which looks like what I think is correct (I think my PS-83BL manual is wrong): Vcc -D +D G Key Pin * * * * * USB 3 * * * * X USB 4 Vcc -D +D G No Pin _________________________________________________ __ However, my PS-83BL manual shows the pin-out configuration like this below which seems crazy to me: -D G Vcc +D G * * * * * USB 3 / 5 / 7 * * * * X USB 4 /6 / 8 Vcc +D Key -D Key DFI even included an extra back plate with 2 ports and connector cable keyed and wired to fit any of the top configurations (at either USB 3/4 or 5/6 or 7/8). It would smoke my USB devices if plugged in to a pin-out assignment as shown in the DFI manual for my board. Since all their other manuals for their other boards show what I've always believed to be the correct assignments, my conclusion is that their manual is just plain wrong. Am I reasonable in this assumption? I've written to their Tech Support .... should be interesting if they even respond :-) Thanks! I'd check to see what pins on the board go to where, namely power and ground first, to determine if the are correct. -- Gary J. Tait . Email is at yahoo.com ; ID:classicsat |
#3
|
|||
|
|||
I think they are standard. The key on how to attach is the blank, ie, the
no pin hole slot. Some plugs are solid there so you can't put it in backwards. Other's aren't keyed. I've plugged them in backwards by mistake and all that happened was the port didn't work until I reversed them. I just checked my manual for a A7V8X-X mobo, and pinouts are the same as you posted. Usually the plus wire is red and the ground wire is black. The plus wire goes where you have labeled it Vcc, and the black goes where you have labeled it G. elf |
#4
|
|||
|
|||
So far, I have found two different mutually-incompatible
motherboard pin-layouts for USB external connectors. The two layouts have different key-pin locations, so it is impossible for the user to install the wrong external-connector assembly onto the mismatched motherboard connector. The first layout you show is an industry-standard layout. This is the layout used by Abit. The second layout is *completely* wrong. It is similar to the second standard layout I've seen, but the locations of the keypins are wrong and and G is missing on the lower row. I would not trust the data source for this layout at all. The following are details on how to switch the external connector's header-pin arrangement from one layout to the other when you have access to valid data for the motherboard header pin layout. To change the layout, the first thing you have to check is whether you have a modifiable plastic header block on the external connector assembly. Some header blocks have the key pin blocking-hole molded into the plastic header block permanently. These are unsuitable for manual changeover. You will either have to find another external connector assembly or a replacement plastic header block that can be exchanged for the one on your current external connector assembly. A Modifiable header block has a plastic blocking pin inserted into the key-pin hole on the plastic header block. This can be pushed out from the back using a straightened paper clip. Keep the blocking pin, you will need to re-insert it into the proper key-pin hole once you have changed the wiring connections to the proper layout. Move the wires into the proper layout as follows: 1. The layout of the VCC, Ground, Data1 and Data2 pins inside the USB connector itself is standard. 2. Cut a standard USB cable and bare the 4 internal conductor wires. Trace back the wires inside the cable down to the connector using an ohm meter to verify which colour the external cable uses for the Vcc, G, D1 and D2 lines. 3. Plug your USB test cable into the external connector and trace the 4 wires from the external cable down to the wires on the external cable's header connector. Please note there is no enforcement of the standard for the colours. They *may* vary from what's used inside USB cable. 4. If things match up as expected with the published layout in the motherboard manual, plug in and you're set to go. 5. If the layout found in item 3 doesn't match your motherboard layout, you can use an x-acto knife to *carefully* pry up the locking-tabs on each of the pins in the plastic header-block socket on the end of the external connector and remove the wires with their associated gold sockets. Pry up about 1mm, no more. The locking tab has to spring back down into its original position once you remove the gold socket. Note: Watch the orientation of the gold socket in the plastic header block. The socket must go back in the *same* way it came out. There is a hole on the side of the socket that the tip of the locking-tab goes into when you insert the socket into the header block. This must match when you reinsert each socket. 6. Now reinstall the gold sockets in each hole of the plastic header-block, making sure you've got the right socket in the right hole in the header block. (Remember, you're putting the stuff in the header-block from the back. The layout will be reversed from what you see on the front.) 7. Verify your work with the ohm-meter again once you are done reinstalling the sockets in the plastic header-block. 8. Reinstall the plastic locking pin into the keypin hole on the plastic header block. You've now modified your external USB connector assembly to make it compatible with your particular motherboard. Best I can do for now. tm Bill Rick wrote: My new DFI PS-83BL P4 Springdale chipset motherboard has the usual pin-out jumpers for attaching additional USB connectors from the front of my case, etc. I've normally seen these as two row setups with 5 pins on the top and 4 pins below like I've tried to graphically depict here below (while looking down at the board from above). Is the assignment of the pins pretty standard just like I've shown below. This graphic came from the manual of a another DFI motherboard which looks like what I think is correct (I think my PS-83BL manual is wrong): Vcc -D +D G Key Pin * * * * * USB 3 * * * * X USB 4 Vcc -D +D G No Pin Vcc -D +D G Key Pin * * * * * USB 5 * * * * X USB 6 Vcc -D +D G No Pin Vcc -D +D G Key Pin * * * * * USB 7 * * * * X USB 8 Vcc -D +D G No Pin __________________________________________________ _ However, my PS-83BL manual shows the pin-out configuration like this below which seems crazy to me: -D G Vcc +D G * * * * * USB 3 / 5 / 7 * * * * X USB 4 /6 / 8 Vcc +D Key -D Key DFI even included an extra back plate with 2 ports and connector cable keyed and wired to fit any of the top configurations (at either USB 3/4 or 5/6 or 7/8). It would smoke my USB devices if plugged in to a pin-out assignment as shown in the DFI manual for my board. Since all their other manuals for their other boards show what I've always believed to be the correct assignments, my conclusion is that their manual is just plain wrong. Am I reasonable in this assumption? I've written to their Tech Support .... should be interesting if they even respond :-) Thanks! |
#5
|
|||
|
|||
Takr a look at this POST for USB
2.0.http://groups.google.com/groups?hl=e...7%2540fed1read 2%26rnum%3D5 |
#6
|
|||
|
|||
Whereas On Sun, 5 Oct 2003 10:28:37 -0400, "`Elf"
scribbled: , I thus relpy: I think they are standard. The key on how to attach is the blank, ie, the no pin hole slot. Some plugs are solid there so you can't put it in backwards. Other's aren't keyed. I've plugged them in backwards by mistake and all that happened was the port didn't work until I reversed them. I just checked my manual for a A7V8X-X mobo, and pinouts are the same as you posted. Usually the plus wire is red and the ground wire is black. The plus wire goes where you have labeled it Vcc, and the black goes where you have labeled it G. elf Thenk doesn't guarantee nothing will get smoked by an incorrect connection. -- Gary J. Tait . Email is at yahoo.com ; ID:classicsat |
#7
|
|||
|
|||
Looks like I have to check the pin out voltage of the Vcc and G connectors
with my digital voltmeter before connecting a USB device, just to be safe. If the the Vcc and G are what they typically are supposed to be, odds are the -D and +D would be built correctly and thus the manual was a misprint .... which is pretty obvious anyway considering all the other DFI motherboard manuals I checked on their website show a standard pin-out configuration as one might expect. "Gary Tait" wrote in message ... Whereas On Sun, 5 Oct 2003 10:28:37 -0400, "`Elf" scribbled: , I thus relpy: I think they are standard. The key on how to attach is the blank, ie, the no pin hole slot. Some plugs are solid there so you can't put it in backwards. Other's aren't keyed. I've plugged them in backwards by mistake and all that happened was the port didn't work until I reversed them. I just checked my manual for a A7V8X-X mobo, and pinouts are the same as you posted. Usually the plus wire is red and the ground wire is black. The plus wire goes where you have labeled it Vcc, and the black goes where you have labeled it G. elf Thenk doesn't guarantee nothing will get smoked by an incorrect connection. -- Gary J. Tait . Email is at yahoo.com ; ID:classicsat |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Configuration Question | Jay Peterman | General | 4 | September 22nd 03 01:05 AM |
Speaker noise with Abit BH7 mainboard | ParanoiaBOTS | General | 4 | August 26th 03 03:06 AM |
Need BIOS for PCCHIPS 599LMR v 1.4 mainboard. | Tomas Pedersen | General | 3 | August 23rd 03 07:39 AM |
Best Configuration | [email protected] | General | 2 | August 13th 03 08:53 PM |
mainboard - AGP4x card - 8x? | Jacek | General | 2 | July 16th 03 05:47 PM |