Phoenix BIOS and SYS errors: Difference between revisions

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Return to [[The Warp Pharmacy:Hardware]]
Return to [[The Warp Pharmacy:Hardware]]


Last update: 6th November, 1995
Last update: 6th November, 1995
----
== Symptoms ==
   
   
Large variety of SYS errors occurring randomly during graphical portion of
== Symptoms ==
installation and normal use of Warp. Errors are typically of the "Application
Large variety of SYS errors occurring randomly during graphical portion of installation and normal use of Warp. Errors are typically of the "Application can not continue" type.
can not continue" type.
 


== Hardware ==
== Hardware ==
Hard drive prefetch enabled in PhoenixBIOS Version 4.04 (possibly others)
Hard drive prefetch enabled in PheonixBIOS Version 4.04 (possibly others)
 


== Problem ==
== Problem ==
Warp bypasses the system BIOS and uses its own drivers to control the hard drive.
Warp bypasses the system BIOS and uses its own drivers to control the hard drive.
When the "prefetch" option is turned on in the BIOS, the hard drive returns
When the "prefetch" option is turned on in the BIOS, the hard drive returns unexpected data to Warp, whose drivers aren't aware that prefetch is enabled. This causes any data read from the hard drive to have a chance of being misread.
unexpected data to Warp, whose drivers aren't aware that prefetch is enabled.
This causes any data read from the hard drive to have a chance of being misread.
 


== Procedure ==
== Procedure ==
Disable the prefetch option in the BIOS.
Disable the prefetch option in the BIOS.


== Notes ==
== Notes ==
This problem seems to occur most often in Selective Install.
This problem seems to occur most often in Selective Install.


 
''By Jim Little''
----
By [[Jim Little]]


Return to [[The Warp Pharmacy:Hardware]]
Return to [[The Warp Pharmacy:Hardware]]


[[Category:The Warp Pharmacy]]
[[Category:The Warp Pharmacy]]

Revision as of 21:33, 7 June 2017

Return to The Warp Pharmacy:Hardware

Last update: 6th November, 1995

Symptoms

Large variety of SYS errors occurring randomly during graphical portion of installation and normal use of Warp. Errors are typically of the "Application can not continue" type.

Hardware

Hard drive prefetch enabled in PhoenixBIOS Version 4.04 (possibly others)

Problem

Warp bypasses the system BIOS and uses its own drivers to control the hard drive. When the "prefetch" option is turned on in the BIOS, the hard drive returns unexpected data to Warp, whose drivers aren't aware that prefetch is enabled. This causes any data read from the hard drive to have a chance of being misread.

Procedure

Disable the prefetch option in the BIOS.

Notes

This problem seems to occur most often in Selective Install.

By Jim Little

Return to The Warp Pharmacy:Hardware