Gigabyte x58 UDR3 PS/2 Ports Problem
- Thread starter Hixxey
- Start date
Could you post which bios version you are currently using.
And I assume all is running at stock right now.
Quick thing to do is clear your CMOS and then start again. Often it is better to pull all the bits and pieces from the mobo before you clear CMOS.
And I assume all is running at stock right now.
Quick thing to do is clear your CMOS and then start again. Often it is better to pull all the bits and pieces from the mobo before you clear CMOS.
It doesn't work in either.
Yes everything is running stock.
How do I clear the CMOS?
Thanks,
Hixxey
The PS/2 ports are apparently superior because of the following reasons, stolen from the OCN Mechanical Keyboard Guide:
n-key Rollover (NKRO)
This is when you can press as many keys as you want at the same time, and all of them go through. This is similar to what some 'gaming keyboards' incorrectly market as "anti-ghosting", even though Logitech and Razer only apply it to the WASD cluster (more on what ghosting really means later). You might also hear the term where n is replaced with a number (i.e., 6-key rollover), which means that up to that number of keys can be pressed simultaneously. Note that only PS/2 keyboards can exhibit full n-key rollover. USB spec limits keyboards to 6 regular keys plus 4 modifiers (but remember, it's not guaranteed, it's just a maximum).
PS/2 or USB?
PS/2 wins on three fronts: First, it supports full n-key rollover. Second, PS/2 keyboards aren't polled, but are completely interrupt based. And third, it is impossible for it to be delayed by the USB bus being used by other devices. There are two types of USB transfer modes - the interrupt transfer mode (USB polls keyboard, when key is sensed the USB controller sends the interrupt to the CPU), and the isochronous transfer mode, which reserves a certain amount of bandwidth for the keyboard with a guaranteed latency on the bus. Unfortunately, there are absolutely no keyboards made that use the latter, because special controllers would have to be used, thus making it cost prohibitive.
So if your keyboard supports both PS/2 and USB, and your PC has a PS/2 port, there's no reason not to use it.
n-key Rollover (NKRO)
This is when you can press as many keys as you want at the same time, and all of them go through. This is similar to what some 'gaming keyboards' incorrectly market as "anti-ghosting", even though Logitech and Razer only apply it to the WASD cluster (more on what ghosting really means later). You might also hear the term where n is replaced with a number (i.e., 6-key rollover), which means that up to that number of keys can be pressed simultaneously. Note that only PS/2 keyboards can exhibit full n-key rollover. USB spec limits keyboards to 6 regular keys plus 4 modifiers (but remember, it's not guaranteed, it's just a maximum).
PS/2 or USB?
PS/2 wins on three fronts: First, it supports full n-key rollover. Second, PS/2 keyboards aren't polled, but are completely interrupt based. And third, it is impossible for it to be delayed by the USB bus being used by other devices. There are two types of USB transfer modes - the interrupt transfer mode (USB polls keyboard, when key is sensed the USB controller sends the interrupt to the CPU), and the isochronous transfer mode, which reserves a certain amount of bandwidth for the keyboard with a guaranteed latency on the bus. Unfortunately, there are absolutely no keyboards made that use the latter, because special controllers would have to be used, thus making it cost prohibitive.
So if your keyboard supports both PS/2 and USB, and your PC has a PS/2 port, there's no reason not to use it.
Ok that is a progress,
Do you have another keyboard to check and see if it is the keyboard that might be possibly faulty. I doubt it but lets remove as many variables as possible.
The keyboard is USB (I use a USB to PS/2 plug) and it does work in the USB port but I would like all my USB ports free for external HDD's and my printer.
Thanks,
Hixxey.
Last edited:
Ah what I meant was (and I should have expressed it better) do you have another keyboard that uses the same PS/2 connector.
Do you have an adaptor that will allow you to use the PS/2 port with a USB keyboard. That way you can check and see if a working keyboard is failing with the port.
Until we remove the keyboard you are using as a possible cause of the failure we can not move on. Not sure really how to proceed - except to ask if you have a mate who could lend you a working PS/2 keyboard so that you could test it. Or go round to a mate with your keyboard and check and see if it works on their system. Besides that not much more we can do really.
You could flash your bios to the latest version but that will need a keyboard. And I do not see any need to flash any bios just for the sake of flashing. The risk, while small. of a bricked board is still very real.
Do you have an adaptor that will allow you to use the PS/2 port with a USB keyboard. That way you can check and see if a working keyboard is failing with the port.
Until we remove the keyboard you are using as a possible cause of the failure we can not move on. Not sure really how to proceed - except to ask if you have a mate who could lend you a working PS/2 keyboard so that you could test it. Or go round to a mate with your keyboard and check and see if it works on their system. Besides that not much more we can do really.
You could flash your bios to the latest version but that will need a keyboard. And I do not see any need to flash any bios just for the sake of flashing. The risk, while small. of a bricked board is still very real.
I've tried the keyboard on my old PC's PS/2 and USB ports and they both work.
Also, my old keyboard works on my USB bot not on the PS/2 port.
When I was plugging in the keyboard to the PS/2 port I nudged the mouse so that stopped working until a reboot.
EDIT: Updating the BIOS hasn't resolved the issue.
Last edited:
OK it is RMA time for you mate. Sorry to say that but your motherboard seems to have an issue that it should not have. And it needs to be returned so that you can get one that works as it should. The good thing is the Gigabyte have a really sharp RMA program. Contact your retailer and tell them the problem. They will give you instructions further what to do.
I should contact Gigabyte, not OCUK? I only got the Mobo last week (Thursday).