Need help swapping Front Panel Connectors 7x2 and 5x2

[Terrapin2190]

Okay, I'll try to make this as simple as I can. Skip first paragraph if you want to get straight to the issue at hand.

I received a 'junk' computer the other day from my brother's workplace. The motherboard and PSU included were more powerful than the one I was using in my home desktop. I had to do a case swap on both of them because whoever junked the desktop took the hard drive and the hdd caddy with it, so there was no place to install the hard drive I have now into the new (junked) case. Luckily, the Ram type is the same, so I'm hoping to finish this little project and have a better PC up and running later today!

The only thing holding me back is that the front panel connectors are of different sizes and I assume are wired differently.

Here's the deets:

Old desktop:
HP/Compaq Presario CQ5300U
Mobo = M2N68-LA
PN 513426
5x2 front panel connector

New desktop:
Lenovo ThinkCentre 7268 C5U
Mobo = L-IG41M
FRU 71Y6838
7x2 front panel connector

Both front panel connectors are one large plug with only a few wires. Not the easier dual plugs seen on old pc's or custom builds.

Front Panel Connection Details

Compaq M2N68-LA

1 PWR 2 LED 3 PWR 4 BTN
6 HD 7 LED 8-10 RESET

|·|·|·|·|×|
|·|·|·|·|·|

1 Blk 2 Blue 3 Red 4 Blk w lettering
6 Ylw 7 Blk w lettering

Lenovo L-IG41M FRU 71Y6838

Compatible mobo link, pdf:
http://download.lenovo.com/ibmdl/pub/pc/pccbbs/thinkcentre_pdf/53y6319.pdf

(How it's labeled)
1-2 HD_LED 3-5-7 PW_LED 9-11 PWR_SW
8-10 SPK 12-14 RESET

|·|·|·|·|·|·|·|
|·|·|·|·|·|·|×|

1 Blk
8 Ylw 10 Blk 11 Grn 12 Ylw 13 Blk

I can provide pictures or links if needed.

Just need help or a diagram if possible to show me how to rewire these connectors and I can get to installing my OS.

Thanks for reading!

 

[Terrapin2190]

I'm guessing (after researching and comparinga bit) that the seemingly vague markings on the Compaq M2N68 are actually dual pins (ex PWR and LED, PWR and SW) which indicate negative and positive energy flow.

There are no markings on the plastic connector itself, so it's hard to judge which wires should go where. I just don't want to end up frying anything.

I've also noticed that my front panel USB is 1.x (which sort of ticks me off since it's labeled 2.0 on the case!) and my front audio ports are incompatible as well. Wouldn't mind rewiring these to get them working since I have an extra USB 2.0 pin on the Lenovo board... If anyone would mind helping me with that as well. :\

 

[Terrapin2190]

ANSWER / SOLUTION:

Okay, Lenovo is just... I don't know how many times I've cursed at the brand looking for answers. BUT! I think I've fonally found a decent reference to solve both of my dilemmas!

To help others and for my own reference purposes:

Thinkcentre A60 M58 M71 M91 M92
Front Panel Connector USB Pinout Diagrams

https://forums.lenovo.com/t5/ThinkCentre-A-E-M-S-Series/ThinkCentre-front-panel-connector-power-audio-and-USB-pinouts/m-p/190651

Front Panel Connector Pinout

+----+----+----+----+----+----+----+
| Bk |    |    |    |    |    |    |
+----+----+----+----+----+----+----+
| Yl |    | Bk | Gn | Yl | Bk |xxxx|
+----+----+----+----+----+----+----+

+----+----+----+----+----+----+----+
|  1 |  3 |  5 |  7 |  9 | 11 | 13 |
+----+----+----+----+----+----+----+
|  2 |  4 |  6 |  8 | 10 | 12 |xxxx|
+----+----+----+----+----+----+----+

Description

1   Black   Disk activiry led ground
2   Yellow  Disk activiry led ground
3           Not connected
4           Not connected
5           Not connected
6   Black   Power led ground
7           Not connected
8   Yellow  Power led signal
9           Not connected
10  Yellow  Power switch signal
11          Not connected
12  Black   Power switch ground
13          Not connected
14          Locked (no pin)

Internal USB Connector Pinout
(NOT external front panel USB)

+---+---+---+---+---+
| 1 | 3 | 5 | 7 | 9 |
+---+---+---+---+---+
| 2 | 4 | 6 | 8 |XXX|
+---+---+---+---+---+

1   USB1 Power
2   USB2 Power
3   USB1 Data -
4   USB2 Data -
5   USB1 Data +
6   USB2 Data +
7   Ground
8   Ground
9   Not connected
10  Locked (no pin)

HP Compaq CQ5000 CQ5300 CQ5300Y
Pegatron M2N68 LA
Front Panel Connector Pinout Diagram

http://www.findlaptopdriver.com/m2n68-la-front-panel-motherboard/

Is there any way I can mark this as the solution? I answered my own question through online research.

 

[Terrapin2190]

I plugged it in and heard a loud POP. Bit of light shot out of the case after a short buzzing sound.

🙁 Lesson learned. Hey, anybody know what that means?? I've got a clue...

Good thing my other mobo was a junker too I guess.

 

[Terrapin2190]

I believe I've figured out why my PSU went kaput after swapping the mobo and PSU into my old case.

Everything in my old case is inverted (installed upside down) whereas in the 'new' junker, they used the old standard installation. I've deducted that by installing the PSU upside down, all the electricity flow and whatever acids or juice is stored in the capacitors had nowhere to go once they were activated and KABLOOEY!

The new mobo still looks good! There are brown markings near the outermost screwholes, which I would assume indicate an overflow or short being grounded into the case.

I'm reinstalling my old mobo, PSU, and other hardware back into my old case as I'm typing this. Will procede to test the components for any damage... Rewire the front panel connectors back again... Hopefully all is well.

At this point I'm just keeping a record of my progress to reflect on and information for anyone attempting rewiring etc.