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neilhart's Mac Pro Hack

Joined
Sep 24, 2018
Messages
3
Motherboard
ga-z170x
CPU
i7 6700k
Graphics
r9280x
Hi Neil,
Thank you so much for your response.
I've had a look at the MaxConnect and it's quite expensive,
All I want is adapter however I have come across a corsair hot swappable adapter for the Carbide Air 540 case and is quite a good price $4.99 us. (https://www.corsair.com/us/en/Categories/Products/Accessories-|-Parts/PC-Components/Cases/Carbide-Air-540-Hot-Swap-Connector/p/CC-8930148).

Unfortunately, I'm in England and I'm unable to find a supplier in England, Even Corsair USA will not ship to England.

Thank you very much for your help
Alan
 
Joined
Sep 10, 2017
Messages
82
Motherboard
Gigabyte Z390 M GAMING
CPU
i9-9900K
Graphics
Vega 56+UHD 630
Mac
MacBook Pro, Mac Pro
Mobile Phone
Android, iOS
Hi Neil,
Thank you so much for your response.
I've had a look at the MaxConnect and it's quite expensive,
All I want is adapter however I have come across a corsair hot swappable adapter for the Carbide Air 540 case and is quite a good price $4.99 us. (https://www.corsair.com/us/en/Categories/Products/Accessories-|-Parts/PC-Components/Cases/Carbide-Air-540-Hot-Swap-Connector/p/CC-8930148).

Unfortunately, I'm in England and I'm unable to find a supplier in England, Even Corsair USA will not ship to England.

Thank you very much for your help
Alan
Hi, you try this link?
 
Joined
Sep 10, 2017
Messages
82
Motherboard
Gigabyte Z390 M GAMING
CPU
i9-9900K
Graphics
Vega 56+UHD 630
Mac
MacBook Pro, Mac Pro
Mobile Phone
Android, iOS
The 8 pin connector (see photo) is pinned as

1 - 2 - 3 - 4
5 - 6 - 7 - 8

1 = MSG (green) connect to MB front panel pins - try adjacent pins to the power switch + pin
2 = PW+ (purple) connect to MB front panel pins - power switch +
3 = 5 VDC (red)
4 = 12 VDC (yellow)
5 = 5 VDC (red)
6 = 5 VDC (red)
7 = 3.3 VDC (orange) (I did not have an orange marker - shown as black in the photo)
8 = Grd (black)

Some illustrations found on the web use an alternate pin count orientation...


The front panel audio is fairly simple. The original front panel audio cable (see photo) uses a small flat connector. This connector is keyed and will mate only one way.

The Front panel audo connector, looking down at it is pinned out from left to right:

1 - purple (sense) no connect
2 - red (ground) to pin 2 of the ATX Audio connector
3 - black (left channel) to pin 9 of the ATX Audio connector
4 - grey (right channel) to pin 5 of the ATX Audio connector
5 - balck (shield ground) no connect

The ATX Audio connector is pinned out:

10 9 - left channel
8 7
6 5 - right channel
4 3
common - grd - 2 1

As I recall I wired this and tested it and felt lucky that I got right and left channels straight the first try. This is from notes taken in June and I think that they are correct.

neil
I'll follow this step by step when I'm going to build mine.
 
Joined
Feb 4, 2019
Messages
4
Motherboard
ASUS ROG Strix Z370-G Gaming (WiFi AC)
CPU
i7-8700k
Graphics
RX 580
The front panel audio is fairly simple. The original front panel audio cable (see photo) uses a small flat connector. This connector is keyed and will mate only one way.

The Front panel audo connector, looking down at it is pinned out from left to right:

1 - purple (sense) no connect
2 - red (ground) to pin 2 of the ATX Audio connector
3 - black (left channel) to pin 9 of the ATX Audio connector
4 - grey (right channel) to pin 5 of the ATX Audio connector
5 - balck (shield ground) no connect

The ATX Audio connector is pinned out:

10 9 - left channel
8 7
6 5 - right channel
4 3
common - grd - 2 1

As I recall I wired this and tested it and felt lucky that I got right and left channels straight the first try. This is from notes taken in June and I think that they are correct.

neil

Hi @neilhart, I was wondering if you have tested the front panel headphone jack with Mojave? I spliced the Mac Pro audio cable and attached individual ends so I could connect ground, left, and right to the pins on my ASUS ROG Z370-G front panel pins, but get nothing from the front headphone jack even with switching from internal speakers to line out and trying each layout ID. Also tried a second front panel board (2009 Mac Pro) and still no audio from the headphone jack. Anything special you’re doing aside from connecting red, black, and gray? Thanks!
 

neilhart

Moderator
Joined
May 25, 2010
Messages
2,732
Motherboard
ASRock Fatal1ty Z270 Gaming - ITX/ac
CPU
Intel i7-7700T (TDP: 35W)
Graphics
Gigabyte GTX960 2GB, ITX
Mac
MacBook, MacBook Pro
Mobile Phone
iOS
No I have not loaded Mojave on the my Mac Pro hack as it is gathering dust on a low shelf for the last few years.

You asked about Mojave, have you tried High Sierra? I assume that the rear panel audio jack works as if it does not work then your front panel jack has little chance of working.

If I was working this issue, I would make up a 10 pin jumper cable and attache it to motherboard HD Audio header and make sure that audio is present when your system has audio at the rear port.

Good modding,
neil
 
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