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Add machine notes about FW-6400GX and broken ACPI

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RichardG867
2020-08-12 00:49:06 -03:00
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hardware/machinespecific.rst
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@@ -3,6 +3,8 @@ Machine-specific notes
This page contains important notes related to specific machine models emulated by 86Box.
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80286
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@@ -55,6 +57,12 @@ Slot 2
* The BIOS display will corrupt itself during the memory test if the maximum of 2048 MB RAM is selected. This is a visual glitch which does not otherwise negatively impact the machine.
.. rubric:: Freeway FW-6400GX
* Hybrid motherboard supporting both Slot 1 and Slot 2 CPUs.
* ACPI is disabled by default. It can be enabled through the *ACPI Aware O/S* option of the *Power Management Setup* menu on the BIOS setup.
* Once enabled, ACPI does not work correctly if a VIA Cyrix III CPU is selected. See :ref:`brokenacpi` for more information.
Socket 370
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@@ -69,3 +77,19 @@ See: :ref:`atc6310bxii`
* The I/O ports and IRQs used by all these ports can be configured in the BIOS setup.
* ACPI is disabled by default, unlike other machines with Award v6.00PG BIOS. It can be enabled through the *ACPI function* option of the *Power Management Setup* menu on the BIOS setup.
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Footnotes
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.. _brokenacpi:
.. rubric:: Broken ACPI
Some machines may have faulty or otherwise incomplete `Advanced Configuration and Power Interface <https://en.wikipedia.org/wiki/Advanced_Configuration_and_Power_Interface>`_ implementations in their BIOSes, symptoms of which include:
* Windows 2000 and higher will install the "Standard PC" HAL, which does not enable ACPI features such as soft power off and suspend to RAM;
* Booting an existing Windows installation with the ACPI HAL will result in a STOP 0x000000A5 blue screen;
* Booting Windows Vista or 7 (which require ACPI) will also result in a STOP 0x000000A5 blue screen, or a Windows Boot Manager 0xc0000225 error.
There is no solution to this issue, as none of the currently emulated machines with broken ACPI ever received a BIOS update to fix it.