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9 Posts

02-01-2017

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Lenovo Proprietary Connectors on ThinkCenter M83 server Motherboard!

2018-05-16, 7:31 AM

Hello, people on the Lenovo forms! I'm not here to complain I'm here to ask for some advice and for some help on where I could find adapter`s for the 14 pin power connector, the front audio header, the front USB header and the pin layout or an adapter for the pins for the things like the power button, HDD activity light and such. I also have a curious question about the power system. right next to the 14 pin power connector are 2 4 pin connectors. did some research and they are to power the Vrms of the motherboard. do I have to have power to them or do I just leave them unplugged as I have watched many videos on it and they all have them unplugged? there is a google plus post linked below for images and if you would like any more information just ask. I also got this off a guy from facebook marketplace for a home server I'm building (i don't even know if this thing works as I am saving for ram, power supply and CPU.

 

https://plus.google.com/u/0/photos/110450629953905664853/album/6555615649489181793?authkey=CIP-qOmf6qCKngE 

https://plus.google.com/u/0/photos/110450629953905664853/album/6555692246539638689?authkey=CJ3wiMKxj7-9LQ

 

 

thanks for the help and advice,


Flash

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5196 Posts

02-22-2010

United States of America

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Re: Lenovo Proprietary Connectors on ThinkCenter M83 server Motherboard!

2018-05-16, 16:45 PM

Based on the pics, that board is shared across a couple of products as far as I know (ThinkCentre, ThinkStation, and even ThinkServer I beleive).  So I'm not sure if you have the ThinkStation variant or not, but even so I should be able to help with a lot of your questions since the hardware layout shouldn't really vary between them.

 

There should be dongles/adapters that you can find on the open market to convert the 14-pin ATX connector to the industry standard 20 or 24 pin ATX connector.  I can't really recommend any as I've not vetted them, but search around as I think they're pretty easy to find.

 

The front audio and front USB headers are either industry standard, or nearly industry standard.  I'll see if I can dig up some more detail based off the schematics and post it later.  The front panel connector is the one that's probably somewhat unique, and I'll see if I can post the relevant info for that connector as well.

 

The two 4-pin connectors your referencing from the pics are not to power the various voltage regulators on the board.  Those are actually downstream (regulated) connectors that are used to power ODD, HDD, SSD, etc.  There are unique cables with 4-pin connectors and one side and SATA power drops coming off the other end that you'll need to provide power to those devices.  There are a couple of FRUs that will work for this.  54Y8286 is the FRU for the 3-drop SATA power cable typically used to drive the ODD bays.  54Y9339 is the FRU for the 2-drop SATA power cable typically used to drive the HDD bays.  Note that if you're using a standard ATX supply instead of the official ThinkStation P300 PSU, then chances are your PSU will have regulated SATA power drops coming directly off it, and you won't have to use these onboard 4-pin connectors to power your drives.




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Re: Lenovo Proprietary Connectors on ThinkCenter M83 server Motherboard!

2018-05-16, 20:36 PM

These pinouts should help for the other connectors.  Note that for the front panel connector, I'm only showing the pins we utilize in our system.

 




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Re: Lenovo Proprietary Connectors on ThinkCenter M83 server Motherboard!

2018-05-16, 21:41 PM

Thank you so much for the advice psuturtle!

 

The only issue with the front USB header and audio header are that they are as you said. near standard and il have to find converters but as for the front panel pin layout that really really helps me and looks like its mostly just normal apart from some extra pins. time for me too do some digging to find some converters!

 

Flash,

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9 Posts

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Re: Lenovo Proprietary Connectors on ThinkCenter M83 server Motherboard!

2018-05-16, 21:49 PM

another quick question.

 

as for the front panel pins, if there any that populate for the reset switch?

 

Flash.

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Re: Lenovo Proprietary Connectors on ThinkCenter M83 server Motherboard!

2018-05-17, 17:16 PM

We don't use the reset pair, so I'm not 100% positive if everything for it is wired correctly or not. Looking at the schematic, reset- is pulled to ground and reset+ runs to the chipset, so hopefully it works.

 

Pin 12 = reset +

Pin 14 = reset -

Those would be the two far right pins in the upper row in the front panel diagram I posted previously.




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Re: Lenovo Proprietary Connectors on ThinkCenter M83 server Motherboard!

2018-05-17, 18:24 PM

I also forgot to mention that the yellow USB header above is one of our more industry-standard USB connections (or at least as close as we get to it...the presence detect is somewhat unique).  If this is the board I think it is, there should be another small edge connector just to the left of the SATA ports.  This is the USB3 header that we use to drive our front panel USB3 ports (the yellow USB header is USB2).  I don't think you're going to find a breakout cable or adapter to support using that header on the open market.  So if you need USB3 you might have to utilize an add-in card to support that.




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8 Posts

09-12-2011

Russian Federation

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Re: Lenovo Proprietary Connectors on ThinkCenter M83 server Motherboard!

2018-09-21, 12:47 PM

It need to be mentioned, that for this USB header GPIO (pin 1)  presence detection pin should be shorted to GND pin (pin 2) by jumper if using 3rd party USB connectors with 10-pin header. Standard Lenovo 12pin Front USB already have this squinch on motherboard side of cable.

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Re: Lenovo Proprietary Connectors on ThinkCenter M83 server Motherboard!

2020-06-03, 21:36 PM
There is duplicate F MIC L_C HDR pins 3 and 7 on orange connector. Is it ok? Or one of that pins have some different purpose?
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Re:Lenovo Proprietary Connectors on ThinkCenter M83 server Motherboard!

2020-06-04, 16:04 PM

Pin 3 and pin 7 are connected to the same signal (F MIC L_C HDR) per the schematic.  The diagram appears to be correct.




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