Mainboard Case LED Voltage

Does anyone know the voltage / max amps the Case LEDs (Power LED, HDD Activity LED) run at?

You will have to look at the circuit and figure it out as it will vary from across cases, typical diodes run around 3v @ 20mA

I also found this PDF
It does support the 5V argument.


5v is what I was last told.

Off Topic, but that Tom's hardware link. What a necro and a half (6 years)