kdb158: HP Pentium BIOS Bug – Upper Memory Conflict

Title: HP Pentium BIOS Bug – Upper Memory Conflict
Keywords: HP Pentium BIOS bug memory conflict Intellicon
Date: August 7, 1996
KDB: KDB-158
Revision: 0.00
Author: Support
Distribution: External

Customers have been reporting problems with the new Hewlett Packard Vectra Pentium systems, model no. XM5-133 and XM5-166. The problem is encountered when using the Intellicon 2,4 or 8, but it could also present a problem with the NT960.

The symptom of the problem occurs when the card is at these settings.

IRQ – any.
I/O – port any.
Memory – d0000h or e0000h.

Users will encounter these errors:

  • DOS – unable to verify code into coprocessor.
  • QNX2 – Cannot verify code into coprocessor.
  • QNX4 – Intellicon Memory test failed at (some address)hex on board using I/O port (nnn) hex
  • Check for memory Conflicts
    Contents of the address are:….
  • Unix – unable to load code at xxxx.

Problem:

The new HP Vectras have a bug in the BIOS which prohibits the usage of the memory region ranging from DC000 up to FFFFF.

Solution:

HP can provide a BIOS upgrade utility and a new BIOS which will fix the problem. Customers should contact their HP representative for more information.

End of KDB-158

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