Article ID: 129119
Article Last Modified on 11/1/2006
APPLIES TO
- Microsoft Windows NT Workstation 3.5
- Microsoft Windows NT Server 3.5
This article was previously published under Q129119
SYMPTOMS
Under Windows NT 3.5, you are unable to set the typematic rate on a 90 mHz AT&T Globalyst 600 (3356) Pentium ISA/PCI. Changing these settings in the CMOS or in Control Panel has no effect.
NOTE: The AT&T Globalyst 600 (3356) Pentium ISA/PCI in on the December 1994 Hardware Compatibility List (HCL). The NCR H0150-STD1-12-17 and 3299-K440- V003 are the standard keyboards for this computer.
CAUSE
The problem appears to be related to the speed of the machine. Slower machines with the same keyboard work fine, but the 90mhz machines fail consistently.
MORE INFORMATION
The initialization code for i8042prt sends a control byte to the keyboard controller to set the typematic rate and the keyboard indicator lights. It then waits a preset, but arbitrary, amount of time for a return. If no return is received, a message is posted to event viewer and initialization proceeds. The waiting period is not configurable through the user interface or the registry.
The Events posted include:
STATUS
Microsoft has confirmed this to be a problem in Windows NT version 3.5. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.
Additional query words: prodnt light
Keywords: KB129119
