VOGONS


First post, by mekamayhem

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Hi,
Would anyone know what the USB header pin out for this motherboard (Abit AB-IT 5V)? Nothing is mentioned in the manual from what I can see.
It's a 16 pin header with the second pin blank.

Thanks,

Reply 1 of 10, by Deksor

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I believe you had to use some kind of bracket that was sold with the board. If I were you I'd try to figure out where's the + and the - and then try to figure out which pin is D+ and which pin is D- by trial and error.

Then tell us which pins are which 😀

Trying to identify old hardware ? Visit The retro web - Project's thread The Retro Web project - a stason.org/TH99 alternative

Reply 2 of 10, by mekamayhem

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I see that explains the lack of information. I shall work it out and let you all know 😁.

Thank you ,

Reply 3 of 10, by Hoping

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Are you sure that the motherboard model is (Abit AB-IT 5V)? I can't find it anywhere.

Reply 5 of 10, by Deksor

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We have it on trw https://theretroweb.com/motherboards/103

By the way would you like to help us and send us a good picture of the motherboard ? (With just the board, no cables in the way, no cards, etc and good lighting) ?

Last edited by Deksor on 2026-03-25, 16:17. Edited 1 time in total.

Trying to identify old hardware ? Visit The retro web - Project's thread The Retro Web project - a stason.org/TH99 alternative

Reply 6 of 10, by mekamayhem

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Motherboard

Reply 8 of 10, by Paar

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Sorry for necro post, but I have reverse engineered the pinout on my AB-SM5 and somebody may find it useful.

(+5V)  1 | 2  (KEY)
(D1-) 3 | 4 (GND)
(D1+) 5 | 6 (GND)
(GND) 7 | 8 (GND)
(+5V) 9 | 10 (GND)
(D2-) 11 | 12 (GND)
(D2+) 13 | 14 (GND)
(GND) 15 | 16 (GND)

This should be applicable to these Abit motherboards (and probably some more):

AB-IT5H
AB-IT5V
AB-SM5
AB-PX5

Reply 9 of 10, by Yoghoo

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Paar wrote on 2025-04-11, 09:30:
Sorry for necro post, but I have reverse engineered the pinout on my AB-SM5 and somebody may find it useful. […]
Show full quote

Sorry for necro post, but I have reverse engineered the pinout on my AB-SM5 and somebody may find it useful.

(+5V)  1 | 2  (KEY)
(D1-) 3 | 4 (GND)
(D1+) 5 | 6 (GND)
(GND) 7 | 8 (GND)
(+5V) 9 | 10 (GND)
(D2-) 11 | 12 (GND)
(D2+) 13 | 14 (GND)
(GND) 15 | 16 (GND)

This should be applicable to these Abit motherboards (and probably some more):

AB-IT5H
AB-IT5V
AB-SM5
AB-PX5

This is indeed applicable on an AB-PX5 motherboard as well. Found it on a Google forum first but this is an even better overview of the pinout. Thanks.

Reply 10 of 10, by Paar

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Glad you found it useful.