Making a standby LED

[mun432]

Hi

My board GA-B85M-D3H switches off the power LED even in standby mode. If I'd like to light up a LED in standby mode, what'd be the best way to go about it? How could I distinguish between standby from power off?

Thanks

 

[BonzaiDuck]

Hi

My board GA-B85M-D3H switches off the power LED even in standby mode. If I'd like to light up a LED in standby mode, what'd be the best way to go about it? How could I distinguish between standby from power off?

Thanks

Perhaps it depends on the motherboard, but the LED you "seek" has always been the Power LED in my experience.

On my systems with ASUS motherboards, sleep-mode causes the Power-LED to flash on and off. Once the system enters Hibernate, the light stops flashing and goes dead.

So I'm wondering why your motherboard and Power LED don't behave the same way. I can't imagine how you would provide that feature yourself. Maybe someone else has better insight to this.

 

[nitromullet]

The power LED is controlled by the motherboard, and behavior for sleep mode varies by manufacturer/board. My Gigabyte board, like yours, turns off the case's power LED in sleep mode.

Apparently, Asus boards will make the power LED blink when in sleep mode. http://rog.asus.com/forum/showthread.php?26928-Standby-and-the-annoying-flashing-Power-LED!!!

 

[BonzaiDuck]

The power LED is controlled by the motherboard, and behavior for sleep mode varies by manufacturer/board. My Gigabyte board, like yours, turns off the case's power LED in sleep mode.

Apparently, Asus boards will make the power LED blink when in sleep mode. http://rog.asus.com/forum/showthread.php?26928-Standby-and-the-annoying-flashing-Power-LED!!!

Now that I think about it, there's a Gigabyte and an EVGA motherboard running in the household. Neither one of them have the ASUS feature. But here at my desk, I have three running ASUS systems from a 2007 to 2011 vintage-issue. They all behave the same way.

There'd have to be some IT group or association -- to make up a standard. It would require more coordination between case and motherboard makers. But I can see how case-makers could provide a 3rd LED, but the cost would fall differently to the mobo manufacturer.

So very likely, "this is it."