Panel front voltage and HDD LED specifications

lkong7
Junior Member

10-09-2016, 04:22 AM

I'm looking into updating the power and HDD LEDs on two of your machines. I want to know the voltage from the motherboard pins. The boards you have are an MSI FM2-A75MA-E35 and a MSI Z170A PC MATE. Appreciate any help!

lkong7

10-09-2016, 04:22 AM #1

VictoroctiV
Junior Member

10-09-2016, 04:46 AM

Standard 20mA LED power, roughly 3-3.5 volts

VictoroctiV

10-09-2016, 04:46 AM #2

Standard 20mA LED power, roughly 3-3.5 volts

GabisBrasil
Member

113

10-09-2016, 07:19 PM

Stock power and HDD LEDs typically draw from the +5v supply. They often have a built-in current limiting resistor. Standard LEDs generally function adequately since the motherboard is designed for the typical LEDs found in different enclosures.

GabisBrasil

10-09-2016, 07:19 PM #3

Irrjr81_gamer
Member

222

10-10-2016, 02:44 PM

Irrjr81_gamer

10-10-2016, 02:44 PM #4

Goddesss
Member

103

10-10-2016, 04:27 PM

Your 2.3V LEDs should function properly.

Goddesss

10-10-2016, 04:27 PM #5

Your 2.3V LEDs should function properly.

Matt1611fr
Junior Member

10-18-2016, 02:21 AM

Usually LEDs operate based on current rather than voltage.

Matt1611fr

10-18-2016, 02:21 AM #6

Usually LEDs operate based on current rather than voltage.

Miyuumi
Senior Member

543

10-20-2016, 08:48 PM

All LEDs and diodes share a typical "junction voltage" range of about 1.8 to 2.5 volts. The resistor is built to control the current so it stays within safe limits. They should function properly unless you have very large LEDs meant for high power and brightness.