Abit PN5 rev.1.21 - weird pin-outs \ VOGONS

Abit PN5 rev.1.21 - weird pin-outs

Topic actions

First post, by OSH

Posted on 2023-05-14, 16:46

OSH Offline

Rank Member

Rank: Member
Posts: 253
Joined: 2007-10-28, 23:34

Well I'm ran out ideas. I have Abit PN5 motherboard revision 1.21. I'm trying to connect right the wires for Power LED, Turbo LED, Speaker, Reset and Turbo switch. I found a manual for this board, but pin-outs are completely different than on mine board! I attach a photo my board and pin-outs from manual.
This is my board:

This is pin-outs from manual

So as you see, they are completly different.
And in the manual I read, speaker connector pins are 11-14
but here 19,17,15,13.
Has anyone such mainboard and tell me, how can I right connect these wires?

Reply 1 of 5, by Dorunkāku

Posted on 2023-05-14, 17:12

Dorunkāku Offline

Rank Newbie

Rank: Newbie
Posts: 70
Joined: 2019-11-20, 22:11
Location: Amsterdam

The correct jumper manual for your board:
https://theretroweb.com/motherboard/manual/35099.pdf

There is a typo in the speaker pin numbers, it should read 13/15/17/19.
The power led+ goes on pin 1 and the powerled ground goes to pin 3.

Reply 2 of 5, by bogdanpaulb

Posted on 2023-05-14, 17:34

bogdanpaulb Offline

Rank Member

Rank: Member
Posts: 317
Joined: 2022-11-15, 12:43
Location: Roumania

You have the manual here https://theretroweb.com/motherboard/manual/35099.pdf, the pins are numerated on your motherboard connector, starts with 1 and 2 on the upper part of the connector and ends with 19 and 20 lower part of the connector in the picture.

Reply 3 of 5, by OSH

Posted on 2023-05-14, 18:52

OSH Offline

Rank Member

Rank: Member
Posts: 253
Joined: 2007-10-28, 23:34

Dorunkāku wrote on 2023-05-14, 17:12:
The correct jumper manual for your board: https://theretroweb.com/motherboard/manual/35099.pdf […]
Show full quote

The correct jumper manual for your board:
https://theretroweb.com/motherboard/manual/35099.pdf

There is a typo in the speaker pin numbers, it should read 13/15/17/19.
The power led+ goes on pin 1 and the powerled ground goes to pin 3.

Thanks! But unfortunately, no matter where I connect these both wires (green and white), LED Power is off) probably I damaged it 🙁… and TURBO LED is still on, no matter, the TURBO button is pushed or released. TURBO SW connector has three wires, but on this schema I see any point, where I can connect ist…

Reply 4 of 5, by bogdanpaulb

Posted on 2023-05-14, 19:15

bogdanpaulb Offline

Rank Member

Rank: Member
Posts: 317
Joined: 2022-11-15, 12:43
Location: Roumania

Green goes to pin 1, white to pin 5. Turbo sw has only 2 wires , the 3 wires one is used with a speed display https://newsquick24.com/tech/in-older-pcs-wha … e-turbo-button/ and connects to it, then from the display pcb comes a 2 wire connector that plugs in to the motherboard. Your case(386/486 era) is older then the motherboard.
You can remove one pin from the side of the connector to make it in to a 2 wire type.
Also on some 'newer' motherboards (pentium) there is no physical place for the turbo sw Turbo switch functionality on high end 486 & early Pentium 1 systems

Last edited by bogdanpaulb on 2023-05-14, 19:31. Edited 1 time in total.

Reply 5 of 5, by OSH

Posted on 2023-05-14, 19:27

OSH Offline

Rank Member

Rank: Member
Posts: 253
Joined: 2007-10-28, 23:34

Yeah, you had right, POWER LED is now on! Do you think, this "TURBO" button is useless in this board? But why it has still TURBO LED?

Go to top of page Go to top of page

Back to General Old Hardware