Some of the IBM clicky keyboards (the technical name is "buckling
spring" keyboards) don't work reliably with some newer motherboards. A
primary issue was that they drew more power than some keyboard ports
could supply, and that they also loaded the "clock" line of the PS/2
port too heavily, causing unreliable operation. The problem became kind
of severe in the 2003-2002 time frame when a number of Asus motherboards
in particular were severely afflicted (The P4T-E was one where I
personally first encountered this issue).
It took me a long time to find out what was going on, but I finally got
a white paper that discussed the problem and a fix in detail. Only some
specific part numbers of IBM keyboards were involved, mostly produced in
the 1980's and the early 1990's. Some other keyboard models exhibited
these problems also. Because of the nature of the problem and the PS/2
port, although the keyboard could cause this problem, the keyboard might
work and the symptom could involve the mouse or just general instability
of the system at bootup.
There is an unofficial writeup by another end-user of one of the major
aspects of this problem here:
http://www.geocities.com/jszybowski/keyboard/
It's possible that this could be the issue that JLowenha was experiencing.
Ben Myers wrote:
> Huh? My IBM 101-key clicky-clack keyboard works just fine in Dells and many
> other boxes. So does a more recent IBM branded keyboard made by Lexmark.
>
> But, yes, keyboards and keyboard electronic signalling interfaces on
> motherboards deviate somewhat from the old IBM keyboard gold standard, and I run
> into keyboard-mobo combinations that do not work. If one deviates one way and
> the other deviates the other way, ya got problems. Talk about deviates! ...
> Ben Myers
>
> On Wed, 13 Dec 2006 15:40:35 -0500, Barry Watzman <>
> wrote:
>
>> What keyboard are you using? If it's not the Dell original keyboard,
>> and especially if it's an "IBM" keyboard, then the problem may be a
>> keyboard incompatibility. Keyboards are not as totally standard as many
>> think that they are.
>>
>>
>> wrote:
>>> I have a Dell Dimension 8250 with windows xp that I bought in february
>>> 2003.
>>>
>>> I seem to be having a intermittent keyboard problem.
>>>
>>> When I type text the letters coming out are not what I typed.
>>>
>>> For example the letter "a" comes out as another letter and this happens
>>>
>>> for all the letters on the keyboard.
>>>
>>> I know enough to check device manager to see if there is
>>> a hardware problem and the keyboard check out OK.
>>>
>>> Could something be wrong with the keyboard driver ? or the physical
>>> keyboard itself ?
>>>
>>> The only way to solve this is to reboot and it goes away for awhile -
>>> then comes back again.
>>>
>>> Does anyone know what could be wrong ?
>>>
>>> Thanks for your help - Jim
>>>