Keyboard (and later on mouse) not working!!

August 23, 2012 at 20:51:34
Specs: Windows XP Prof, -i3-2120 3.3GHz -3.16 GB RAM

I have a server for a small groceries retail. The server is running on Windows XP, has keyboard connected with a PS2 branch-out connector allowing both keyboard and a barcode scanner to be connected to a keyboard slot. My mouse is running out of the USB port.

The server has the following spec:
-i3-2120 3.3GHz
-3.16 GB RAM
running a Windows XP Professional SP3.

Every morning when we starts the server, the keyboard will not be detected by BIOS and not working when entering the Windows. But the mouse will work, until you start using the keyboard and both keyboard and mouse will stop working all together.

Hard-resetting the computer immediately will not solve the problem, despite numerous tries. Only after allowing for an hour to pass by or so, and do another hard reset will all works seamlessly. This is a procedure that we have to do every single morning and is a source of major annoyance because it happened on the server. A restart on server renders all clients useless hence cashiers have to revert to manual operation. Further, i'm worried about the long term impact on the harddisk/motherboard for a daily hard-reset/forced shutdown.

I have tried using different cables, different keyboards, different mouse and they all behave the same way.

Any suggestions on what i should do?


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August 23, 2012 at 20:59:58
i think it's a motherboard issue...try to change it

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August 23, 2012 at 22:06:14
So, the barcode scanner has a PS/2 connection? Or are you using some sort of adapter on it?

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August 23, 2012 at 22:12:40
The barcode scanner is connected to an adapter (this adapter allows for power source for the scanner as well as for the keyboard). The end bit goes into the keyboard PS/2 slot.

I've tried removing the adapter and/or scanner from different PCs and still have the same result.

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Related Solutions

August 24, 2012 at 03:17:58
What happens if you try to boot with only the keyboard connected direct to the PS/2 port rather than through the scanner/adapter? If the problem persists then you have isolated it to a motherboard problem. Likely a poor joint between the PS/2 port and motherboard since it is a problem when cold but works properly/better after the motherboard has warmed up. Since this is mission-critical hardware a replacement motherboard would be the recommended procedure.

Goin' Fishin' (Some day)

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August 24, 2012 at 03:27:57

I will try that tomorrow morning. The funny thing is, it usually works once it works to boot up throughout the day, but wouldnt work only in the morning. So doing it during the day wouldnt make a difference since the keyboard will work during the startup anyway. Only after an extended period of idleness will this problem persists, such as during morning operation. I'm also starting to think whether a CMOS battery will have anything to do with it?

Will update you once i've done what you suggested.

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August 24, 2012 at 05:17:18
What type of connection is actually on the scanner then? Richard has a good idea but there may be other ways to solve the problem that are cheaper than a motherboard replacement.

Try using a USB keyboard and see if the problem persists.

The fact that the USB mouse stops working along with the PS/2 keyboard suggests the computer may be reassigning resources in a conflicting manner and locking up the computer.

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