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Control panel connector J8H1 pin-out Dimension XPS T450
I am rebuilding a PC out of various parts including a Dell Dimension case.
It would help greatly if anyone knows the pin-out for the J8H1 connector (controls power on, power led, reset btn, HDD led, possibly other things).
I have looked quite diligently on the Dell website, and have found a few references to the connector but no pin-out spec.
shesagordie
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November 25th, 2009 17:00
obuckley
See if the info, HERE can help.
Bev.
Davet50
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November 25th, 2009 14:00
Nor will you likely find any info. Dell keeps their connector pinouts a State Secret.
ejn63
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November 25th, 2009 15:00
Just beware the power supply - though it LOOKS like an ATX power connector, it's proprietary - and if you connect a Dimension T or R power supply to a standard board (or a Dell board to a standard power supply) it will fit - and promptly fry both the board and the power supply when you turn it on.
obuckley
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November 25th, 2009 15:00
How very tiresome.
By messing with a multimeter I have traced which pins control the switches, and it won't be too hard to put a voltage across a few pins in succession and wait for the LEDs to light up. But I had hoped it might not be necessary to re-invent all of the wheel.
Regards
obuckley
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November 25th, 2009 15:00
Thanks for that warning (which I would have missed), however, I am using my own PSU, not the Dell one, and I know that works with the mobo.
Regards
obuckley
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November 26th, 2009 04:00
All worked perfectly, Bev. Thanks.
I have finished the assembly and closed up the case. XP is running and just installing some software updates.
Power LED and HDD LED working fine and a touch on the power button started it all up.
So we can say that the same pin-out info from the machine in your thread applies equally to the Dimension XPS-T450 (and very likely to other machines as well).
Regards
shesagordie
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November 26th, 2009 07:00
obuckley
Please to hear everything worked out. :emotion-21: :emotion-49:
You are right, the pinout details can be applied to several of the older Dell desktops.
Bev.