P4B266-LA Rev. 1.00 - USB Help

Kazi

Senior member
Jun 7, 2001
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Ok, im trying to get my front USB cables to work in a Antec 1080AMG Performance Plus case. My CPU did not come with a book since it was a complete system when I bought it.
The original USB cables on my other case were setup so they were one set.

It took me about an hour to find out how to get my power and HD lights to work. (Power SW was facing up while the HD light was facing down...)

The colors and readings are as fallows.

Black + Blue - (1) Ground
Brown - (1) Ground
Red - (1) +5V
Green - (1) +D
White - (1) -D
Orange - (2) +5V
Grey - (2) +D
Yellow - (2) -D
Black - (2) Ground

Again the motherboard is a P4B266-L A Rev 1.00.

If you could help me out I would be greatly pleased!

Edit: Removed the space between L and A.. might have confused some people ;)
 

mechBgon

Super Moderator<br>Elite Member
Oct 31, 1999
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I can help with that :) Start by separating the five plugs with the numeral 1 from the four plugs with the numeral 2.

I was not able to find the P4B266-L on Asus' site, but I got the P4B266-E manual and I suspect they'll be essentially the same circuitboard layout, so adapt as needed...

Have a look at this image and the red arrow points to the USB 1.1 header, while the blue arrow points to the USB 2.0 header (an option on the -E model). Notice how the headers have five pins on the top row, and four pins on the bottom row. As you'd expect, the five plugs with a 1 go on the top row, while the four plugs with a 2 go on the bottom row.

The case's plugs go in this order, from left to right:

1 group: +5V, D-, D+, Ground, Ground
2 group: +5V, D-, D+, Ground

I suggest putting the 2's on first with the labels up so you can double-check your work visually, then put the 1's on labels-up and again check your work visually. Good luck! :)
 

mechBgon

Super Moderator<br>Elite Member
Oct 31, 1999
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Yikes! :Q That's a funky one. If you have a voltmeter, you can determine which pins are ground and which are +5V. After that it's just a matter of trying the Data- and Data+ pins both ways on the remaining pins in order to figure out which way is correct. Use something expendable like a cheap USB mouse for testing. Hope that works out for you :)
 

Kazi

Senior member
Jun 7, 2001
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ive never heard of shorting out a motherboard via usb pins but i dont want to mess up ;)

Emailed ASUS since it is an ASUS board and was told they wouldn't give me the pin-out positions... something to do with it was an ASUS board but used by HP... ?

Would have been as easy as looking it up, same difference, but I email HP and we will see what they say :)
 

mechBgon

Super Moderator<br>Elite Member
Oct 31, 1999
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YOU EMAILED ASUS AND THEY ACTUALLY REPLIED?! :Q

<-- *faints*
 

Kazi

Senior member
Jun 7, 2001
637
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lol yep...

not sure why though, it was a one line "we cant give you this information" statement heh...
 

Kazi

Senior member
Jun 7, 2001
637
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0
A step in the right direction!!!

Was doing what you said using a voltmeter and found the pins to be set this way:

Ground +5V [NC] * * *
Ground +5V [NC] * * *

i tried using the next set like so:

+D -D *
-D +D *

Didnt work, so Ill try the opposite in a few.