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SOLVED: Gigabyte GA-K8NF-9 keyboard problem?

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Damien

Member
I got a GA-K8NF-9 yesterday and built what I consider to be a very nice machine - it isn't high end in the rest of the parts but it is a huge boost from my previous Duron & ECS mobo system. Anyway, within half an hour of having the machine on the PS/2 keyboard stopped working. I picked up a PS/2-to-USB adapter and tried that with little success. I attempted to enable USB-keyboard support in the BIOS and on my third try it worked; I rebooted and was presented with... a non-working keyboard. At this stage I have tried two different PS/2 keyboards and both via the PS/2 port and the USB adapter - nothing works.

So the fact that my keyboard won't work via the USB adapter makes me wonder if a "real" USB keyboard would work at all? Has anyone seen these boards not work with PS/2 but work with USB keyboards?

<sigh>

Note that I forgot to look to see what BIOS revision it was - F1 or F2.

Damien

See the messages below. Disable the USB mouse support in the BIOS to get your PS/2 keyboard back again.
 
I talked to Chig at Gigabyte USA's support line and he explained that it could be the front USB/Firewire ports that are shorting out the motherboard. He explained that this can cause apparently random problems with motherboards so suggested to remove these connectors and try again. Sounds like a line to me though... Because I don't have the system beside me right now I'll have to try later...
 
I got a PS/2 keyboard along with a USB mouse running on a K8NF-9 with no issues at all. My board came with F2 BIOS installed. so far so good!
 
A lot of people seem to be having issues with native PS/2 keyboards with this board, personally I'd pick up a cheap USB keyboard as I haven't heard anyone having problems with a native USB keyboard... my own USB keyboard works fine, but none of my PS/2 keyboards will work.
 
Originally posted by: Rand
A lot of people seem to be having issues with native PS/2 keyboards with this board, personally I'd pick up a cheap USB keyboard as I haven't heard anyone having problems with a native USB keyboard... my own USB keyboard works fine, but none of my PS/2 keyboards will work.
Click to expand...

My K8NF-9 is working with Microsoft's PS/2 keyboard and mouse. Both can be switched to USB or PS/2 but I'm using the PS/2 ports out of the K8NF-9. I have not had any issues with either the mouse or keyboard.

 
I used to have a similar problem with an early revision EPOX 8RDA+ board. I would lose the keyboard (and sometimes the monitor) at random times after rebooting; it was really frustrating. The only remedy was to remove and reconnect the powersupply and PS2 connector a few times, and only then would the keyboard work. BTW, it's possible that the problem really is a short.

Oh, if I were you, I would RMA the board, but if possible wait for a newer revision.
 
I think I see one possible problem. At least something I've not seen before. When the machine is on with some of the lights on (e.g. capslock) and you turn it off the lights stay on! Go figure. This suggests to me that there's something funny going on. Darned thingy.
 
ok. Using a PS2-to-USB adapter I've plugged in the keyboard and its working again. Go figure. I'll test it some more.
 
I'm using a ps-2 keyboard but its plugged in via KVM through a usb port. Guess I guessed right in choosing usb for this pc and ps2 for the other one.

 
I also had problems with my PS/2 keyboard when installing my Gigabyte SLI motherboard. The keyboard always worked with the BIOS. However, in Windows XP, the keyboard would work fine, then, after a reboot, it would not function (no keys pressed had any effect). After removing the keyboard in the device manager, rebooting, and then reinstalling, the keyboard would work again. After much frustration, I found on another forum that someone had success by changing from a USB to a PS/2 mouse. I did this, and with both Keyboard and mouse connected via PS/2, I have had no further problems. The downside is that my wireless mouse will not function this way, so, I have to use wired. At least the keyboard works now. If anyone discovers a way to use a PS/2 keyboard and USB mouse, please post it.
 
Just got my board, and I have the same damn PS2 problem. I don't know how how a company as large as Gigabyte could have all these motherboards will faulty PS2's.

Has anybody filled out a tech report at Gigabyte yet?
 
To fix the problem, turn off the "USB Mouse" option in the bios. As an added bonus your bright, shining, crimson optical mouse won't stay on when you power off.
 
Originally posted by: OneoffUser
To fix the problem, turn off the "USB Mouse" option in the bios. As an added bonus your bright, shining, crimson optical mouse won't stay on when you power off.
Click to expand...

It's not the mouse we are having problems with, it is the keyboard plugged into the PS2
 
No issues here with PS2 or USB...In fact with a USB keyboard I was unable to hit the DEL key to boot off of CD or something like that...I COULD hit F2 to get into bios ( I might have that backwards) ..at any rate, I had to plug in a ps2 keyboard to press a key to boot off cd...wierd crap there!

Anyone here have 2 Capture cards they can test in their mobo? I think the nforce4 chipset has issues with 2 capture cards. I have a PVR150, DVICO Fusion (HD) and a ATI Rage I have tried and cant get any 2 to work at the same time... PLEASE someone try this out for me!
 
Originally posted by: UsandThem
Originally posted by: OneoffUser
To fix the problem, turn off the "USB Mouse" option in the bios. As an added bonus your bright, shining, crimson optical mouse won't stay on when you power off.
Click to expand...

It's not the mouse we are having problems with, it is the keyboard plugged into the PS2
Click to expand...

Turning off "USB Mouse" fixed the keyboard problem for me.
 
I still have this problem -- USB mouse (Logitech MX510) and PS/2 Keyboard (Microsoft Natural Elite). So disabling the USB mouse support in BIOS is not a solution for me.

The PS/2 keyboard doesn't work on restart, even though the num lock light is stuck on. To get the keyboard to work, I have to disable and re-enable the keyboard in device manager.
 
Originally posted by: imperialman
I still have this problem -- USB mouse (Logitech MX510) and PS/2 Keyboard (Microsoft Natural Elite). So disabling the USB mouse support in BIOS is not a solution for me.

The PS/2 keyboard doesn't work on restart, even though the num lock light is stuck on. To get the keyboard to work, I have to disable and re-enable the keyboard in device manager.
Click to expand...

I think your USB mouse will still work even if you turn off the support in the BIOS. Mine does anyway (logitech mx1000)
 
I replaced my NF-9 with the NXP-SLI (nice board, though I'd have preferred the extra PCI slot but they were out). Anyway, an hour ago I was fiddling with the BIOS and turned on USB mouse support, figuring it'd give me access to the mouse in the BIOS pages or something silly like that. I rebooted into Windows XP (Home SP2) only to find the keyboard wouldn't work! Panic mode set in (along with lots of cursing) so I rebooted back to the BIOS, turned off the USB mouse support, rebooted and the keyboard worked again!

So, let me reitterate what OneofUser said: If your PS/2 doesn't work try disabling the USB mouse option in your BIOS. Also, this will NOT affect whether USB mice work in Windows.

Go figure.

Damien
 
The same exact thing happened to me with the NXP-SLI. I turned on the USB mouse support and my PS2 keyboard stopped working. When I went back to the bios and turned off USB mouse support it started working again.

 
Originally posted by: Damien
I think I see one possible problem. At least something I've not seen before. When the machine is on with some of the lights on (e.g. capslock) and you turn it off the lights stay on! Go figure. This suggests to me that there's something funny going on. Darned thingy.
Click to expand...

That implies that the PS/2 device(s) are being powered by the +5VSB line off of your PSU then, most likely. (Assuming that you are speaking of using a PS/2 keyboard here.) I've found that on boards like that, proper functionality of those devices is highly dependent on the power capability and stability of the +5VSB line coming off of the PSU. If there's no way to manually switch (usually with a jumper, but could be a BIOS setting) the PS/2 port power from the +5VSB to the +5V line, which is what I normally do with those boards, then make quite sure that your PSU has plenty of power on the +5VSB lines. I recommend nothing less than 2A, some TTGI/SuperFlower/Topower supplies go as high as 3A. Remember, on modern boards, the STR (suspend-to-RAM) feature may also be drawing power from the +5VSB line, as well as USB devices that could be used for a keyboard/mouse power-on feature as well. So all of those devices are competing for power, and older PS/2 keyboards may not be very power-efficient. (That may also be a well-disguised way of disabling the use of +5VSB, if your BIOS has an option for keyboard/mouse (USB or PS/2 or both) power-on, disable it.)
 
Having power to the mouse or keyboard is good for starting the computer only by pressing a key on the keyboard, clicking the mouse or even typing a password from the keyboard. BIOS has options for that.
 
I have the same problem, I will check the disabeling of the usb mouse, and see if it solves the issue.
 
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