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XEN-PC (P2) ROM BIOS Release Summary (Rev 1.8.1)

Release Date Changes
R01-E0 28/10/94
R01-F0
PN 154308SW
Checksum
29/11/94

7400
Fixed a bug which occurred if the motherboard is not fitted with the M5213 Local bus IDE part, but the backplane has a M1445 - ‘SETUP’ would allow ‘Hard disk PIO mode 3’ and ‘Hard disk 32 bit access’ to be selected. This should have no effect on us, as we always have the M5213 part fitted and not the backplane M1445.

The retry count for the VL-PCI bridge chip has been increased from 16 to 64. This should have no effect on us, as we never use that part.
R01-F4
BETA
21/4/95 The Cirrus Logic video BIOS has been upgraded to V. 1-22.

Systems would hang if the Microsoft mouse driver V. 9-01 was installed without a mouse connected. This has now been resolved.
R01-G0
BETA
checksum
PN 154308SW
15/5/95

9F00
An un-specified ‘SETUP’ problem has apparently been resolved.

Video MCLK for an un-specified mode has been changed from 48 to 50
R01-G1
BETA
checksum
PN 154308SW
17/5/95

A300
The period during which ‘CTL ALT ESC’ can be pressed for entry to ‘SETUP’ has been extended.
R02-G2
BETA
checksum
PN 154308SW
9/10/95

0E00
Plug and Play Support BIOS.

Support for "enhanced" AMD 486 processors, e.g. AMD 486DX4 Write Back cache supported
R02-G2
checksum
PN 154308SW
6/12/95
0E00
This release is functionally unchanged from version R02-G2 BETA.

 


 

Computing for a Connected World