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dittohead

Front panel pinout

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dittohead

So after upgrading to 9211 front hdd led want's working:)

9211 have header for LEDs connection, but HDD LED on front connect via big header to motherboard.

Maybe someone research this header pinout? 

Out of big desire to remove front panel and with probe find LED lines:)

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dittohead

So I spend evening for disassemble front panel and draw picture:)

Maybe be helpful for someone

Front IO pinout female (cable part)

gen8-front-io-pinout.jpg

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schoondoggy

I would connect a led to the 9211 led connector to confirm that the drives and the controller are passing drive activity.

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dittohead

I measured resistance between LSI's LED cathode and microserver's ground, ~200 Omh, but I not found resistor on LSI,  so I think need separate 2th pin, and move it both with pin 6 to LSI header.

 

Or include another one led: into front panel)

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dittohead

So front pannel LED works with LSI

Turn off server

Remove 6th pin from io front connector

Take a resistor 220 Ohm

Connect second LSI pin on LED header with removed HDD Pin by wire

 

And all works!:)

1521405789719.jpg

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dittohead
Posted (edited)

Small demo

and I make a mistake, say "twenty omh" , but this not correct, 200 ohm correct

Edited by dittohead

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