Mouse got light even before turning on power.

[GradeAbra]

I remember having the same issue with standby power and having no BIOS option to change it, so I'm guessing you have the same dilemma I went through. I recommend you find a manual of your motherboard's model for this.
Okay, so there's a 3-pin jumper for standby power on your board with one of these buggers on it:

The jumper has all three pins labeled "1", "2", and "3".
The setting you have it on might be on jumpers 2 and 3, the power being at +5vSB to power the keyboard and mouse even when the system is turned off, usually for people who want to be able to wake their computer when it's almost fully turned off.
If you take the jumper and switch it to jumpers 1 and 2, it will put it at +5v and there will no longer be power fed to USB ports when the system is turned off. I think it may apply to PS/2 ports as well unless there is a different jumper.

Bro so i just need to find this jumper and change it to 1 and 2 thats it? Is there anything else i should take note?

And also i don't think the GIGABYTE mother board has this jumper, the only jumper i can find is the CMOS reset Jumper something like that..

 

[PwnFrnzy]

Pretty much. I had an issue with post-shutdown powering of Human Interface Devices (keyboard and mouse) like you are and after I set the jumper to the 1-2 position the devices no longer received power after shutdown.
I'm looking at the manual for your motherboard and no such circuit exists on it. But there is a setting in BIOS that I think you may be missing.
Restart and go into BIOS and go to "Power Management Setup".
Two values labeled "Power On By Mouse" and "Power On By Keyboard" should both be disabled, either of them being enabled will allow them to be fed power after you shut down to both PS/2 and USB Human Interface Devices, thus causing your issue. Please check that and confirm both are disabled, they may be disabled by default, but it's best to check.

 

[GradeAbra]

Pretty much. I had an issue with post-shutdown powering of Human Interface Devices (keyboard and mouse) like you are and after I set the jumper to the 1-2 position the devices no longer received power after shutdown.
I'm looking at the manual for your motherboard and no such circuit exists on it. But there is a setting in BIOS that I think you may be missing.
Restart and go into BIOS and go to "Power Management Setup".
Two values labeled "Power On By Mouse" and "Power On By Keyboard" should both be disabled, either of them being enabled will allow them to be fed power after you shut down to both PS/2 and USB Human Interface Devices, thus causing your issue. Please check that and confirm both are disabled.

Hi, I am aware of that too. Its called ErP Support. If i enable this there will be no more power fed to the PS/2 and usb port(Power On By Mouse" and "Power On By Keyboard" are both disabled.) However if i turn off the main switch and on again, the mouse light up again even though i did not turn on the computer.

When i tried using a Usb cable mouse, theres no more light.

 

[PwnFrnzy]

Best to double check the settings I listed. If not, then best I can label it down to is that your Motherboard has a defective transistor that won't disable power feeding to the PS/2 ports. We've gone through any and every possible thing that can cause the issue but we still get nowhere. Sorry man.

 

[westom]

Bro so i just need to find this jumper and change it to 1 and 2 thats it?

What motherboard is so archaic as to still use jumpers? Jumper even increase manufacturing costs. The transistor (explained previously) is a superior solution that also costs many times less money. What board is so antiquated as to still use jumpers?

 

[alphanumeric]

The transistor and associated circuitry costs more to install and implement than one little jumper. It would appear its a lot more reliable too.

 

[westom]

The transistor and associated circuitry costs more to install and implement than one little jumper.

It would cost more only if the transistor was discrete. It's not. More reliable method, that costs significantly less, is the transistor. Any motherboard using jumpers in the past ten years would be archaic.

OP seeks an option that disconnects his mouse from an 'always on' power supply. Most often set in the BIOS. And stored in CMOS.

Of course, numerous other (rare) problems can exist. For example, the motherboard could have a solder splash or a 'not completely isolated' PC trace. Inspection would easily find that unlikely possibility. Fixing the solder splash is trivial. A PC trace problem - not so easy. Bottom line - the 'always on' power supply is connected to PS/2 ports. The OP does not want that.

 

[boohbah]

i may have missed a post in this thread ,so bare with me,
i note you said when you plugged a wired mouse in the mouse lights went off, this leads me to think you have a wireless mouse, if this is correct then doesnt the mouse have an actual off/on switch,
turning the mouse off by a switch seems a bit obvious though,
just had to ask .

 

[CB]

Hi GradeAbra

Sorry for not reading all 5 pages threads. If you go to this Spec in Gigabyte site you'll read the red printed this below quote.

Unique Features

1. Auto Green
2. Smart Recovery
3. Support for Q-Share
4. Xpress™ BIOS Rescue
5. @BIOS™
6. Supports EasyTune
7. Xpress™ Recovery 2
8. Xpress™ Install
9. Download Center
10. Q-Flash™
11. Support for On/Off Charge
12. Support for Easy Energy Saver

It means your board has features including support for on off charge (via front panel USB whether your PC is on the state of on, sleep, even when it is off). Much clearer explanation can be found here in this Gigabyte site

It is very useful for charging your gadget in a way that it functions as quick charge (faster then normal charger).
This feature is now available with many PC and laptop, but for laptop mostly there is option to turn it off. (found it available on my Samsung netbook and Fujitsu notebook)


I don't have any idea about how to turn it off on the desktop version. But since it is a features said as On/Off charge, then you may just leave it as it is.



hope that help a little.


Kevin
http://www.gigabyte.com/microsite/185/on-off-charge.htm

 

[alphanumeric]

The transistor and associated circuitry costs more to install and implement than one little jumper.

It would cost more only if the transistor was discrete. It's not. More reliable method, that costs significantly less, is the transistor. Any motherboard using jumpers in the past ten years would be archaic.

OP seeks an option that disconnects his mouse from an 'always on' power supply. Most often set in the BIOS. And stored in CMOS.

Of course, numerous other (rare) problems can exist. For example, the motherboard could have a solder splash or a 'not completely isolated' PC trace. Inspection would easily find that unlikely possibility. Fixing the solder splash is trivial. A PC trace problem - not so easy. Bottom line - the 'always on' power supply is connected to PS/2 ports. The OP does not want that.

Contrary to what you might think, IMHO having jumpers on a motherboard does not make it archaic.

 

[FliGi7]

Bro, i don't see the need to call them. I just wanted to know what is wrong as i believe many of you guys here are also using Gigabyte. I am ok with the power supply for the usb cable. As for the mouse i can switch to a usb mouse.

One thing i don't understanding is how come my keyboard is not light up after my comp is shutdown like the mouse? My keyboard is a PS/2 keyboard too.

You don't see the need to call them? 7 pages of people unsuccessfully guessing at a problem that Gigabyte could tell you how to fix in a 10-15 minute phone call and you don't see any need to call them. :shock: I feel like we're on candid camera or something.

Kevin Ismail's reference to On/Off Charge support refers to a specific set of USB pins on the motherboard that provide power to charge devices when the system is off. It doesn't apply to the PS/2 port. In looking at that, I did come across something that might address the issue. However, I can't really find a reason at this point to continue offering help to someone at this point who refuses to help us in return by saving us some time and effort and just calling the manufacturer directly. That's pretty selfish to prefer to have others scramble and waste time grasping at straws rather than put out any effort yourself.

I will stay tuned, however, to see how many times OP will re-ask the same question and others will re-answer it. It's like having our own Groundhog Day thread on here.

 

[CB]

Sorry for not catching up with the main problem that was PS2 mouse lights on.
Forgot to ask whether the mouse is USB type connected to PS2 port using USB to PS2 adapter or plain PS2 mouse.

What come to my thought is that the factory might have deliberately done that. To my knowledge, PS2 ports are powered from the same source as USB ports (5 volts) that is why USB mouse/keyboard can be plug to it using adapter. IT is possible that the factory board schematic was well arranged, but since board electronic switch using thyristor component (TRIAC or DIAC) it could probably the feed to thyristor gate was improper or fail to trigger and leave the switch unchanged.

It happened to my UD2H board in the past until it worn out last year.

Well then. Though had gone through 8 pages scramble haven't helped, but still, I call it giving help.

Kevin

 

[westom]

To my knowledge, PS2 ports are powered from the same source as USB ports (5 volts) that is why USB mouse/keyboard can be plug to it using adapter.

That was explained previous. Computer has two completely different 5 volt power sources. These were described as 'always on' and the PSU. BIOS may select which powers that mouse. If the mouse is lit when computer is powered off, then the 'always on' 5 volt supply (another correctly called it +5VSB) would be powering the mouse.

OP is doing what the better informed do. Ask not only to fix the problem. But learn why a problem exists. Too many 'computer experts' never do that. They would rather call tech support to fix a problem and learn nothing. Explains why so many 'computer experts' do not know about the power controller, an 'always on' (or 5VSB) supply, and other relevant questions asked by the OP.

So, why is the mouse constanly powered by the 'always on' supply rather than the 5 volts from what was called the PSU? That remains a still unknown answer.

Triac or diac is irrelevant here. If a triac is providing DC power, then the triac never powers off. Clearly triacs, diacs, thyristors, etc are irrelvant and not implemented here. Only confuses things.

 

[Layback Bear]

Spending a week and 73 post trying to fix a problem that isn't a problem doesn't seam all that wise to me. I'm no computer expert.