Improve usage/ideterqua and some other files

usage/ideterqua.rst

@@ -5,6 +5,8 @@ The additional tertiary and quaternary IDE controllers, enabled through the :ref
 
 The following system resources are used by these additional controllers:
 
+.. _table:
+
 +----------+-------------+---------------+---+
 |Channel   |Main I/O port|Status I/O port|IRQ|
 +==========+=============+===============+===+
@@ -13,30 +15,50 @@ The following system resources are used by these additional controllers:
 |Quaternary|01E8h        |03EEh          |11 |
 +----------+-------------+---------------+---+
 
-.. note:: While the IRQ for each channel can be changed through its respective *Settings* button on :ref:`settings/peripherals:Tertiary / Quaternary IDE Controller`, most operating systems do not allow legacy (ISA or VLB) IDE controllers to use custom IRQs.
-
-.. _bios:
+.. note:: While the IRQ for each channel can be changed through its respective *Settings* button on :ref:`settings/peripherals:Tertiary / Quaternary IDE Controller`, many operating systems do not allow legacy (ISA or VLB) IDE controllers to use custom IRQs.
 
 BIOS support
 ------------
 
-The tertiary and quaternary channels are both not visible and not bootable in any BIOS with the exception of **MR BIOS**, which provides full support for them, including bootability and real mode / DOS (INT 13h) access.
+The tertiary and quaternary channels are both not visible and not bootable in any BIOS, with the exception of **MR BIOS version 3**, which provides full support for them, including bootability and INT 13h services.
+
+DOS and real mode
+-----------------
+
+DOS and other real mode operating systems rely on the BIOS-provided INT 13h services to access hard disks. These are only provided for the tertiary and quaternary channels by **MR BIOS version 3**, as mentioned above.
 
 Windows 95, 98 and Me
 ---------------------
 
-TBD
+Each additional channel can be enabled after installation through the following procedure:
+
+1. Go to the *Add New Hardware* control panel.
+2. Add a *Standard IDE/ESDI Hard Disk Controller* from the *Hard disk controllers* category.
+3. Don't restart the system when asked to.
+4. Go to the *Device Manager* tab of the *System* control panel.
+5. Select the newly-added *Standard IDE/ESDI Hard Disk Controller* device from the *Hard disk controllers* category and click *Properties*.
+6. Go to the *Resources* tab.
+7. Select *Basic configuration 4* in the *Settings based on* box.
+8. Change the resource settings to match the :ref:`table above <table>`. The first *Input/Output Range* range corresponds to the **main** I/O port, the second one corresponds to the **status** I/O port, and *Interrupt Request* corresponds to the IRQ.
+
+   * The status I/O port range is off by 6 units. Select 0368 for the tertiary channel or 03E8 for the quaternary channel.
+   * The image below shows an example configuration for the tertiary channel.
+
+9. If both the tertiary and quaternary channels are enabled, repeat the steps above to add the other channel.
+
+.. image:: images/ideterqua_win98.png
+   :align: center
 
 .. _nt:
 
 Windows NT, 2000, and XP
 ------------------------
 
-The Windows NT 4 and 5 family will automatically detect and enable both additional channels during installation. This auto-detection does not work on machines with **Award BIOS**, except for the version that identifies itself as *Phoenix - AwardBIOS v6.00PG*, which does work.
+The Windows NT 4 and 5 families will automatically detect and enable both additional channels during installation. This auto-detection does not work on machines with **Award BIOS**, except for the version which identifies itself as *Phoenix - AwardBIOS v6.00PG*, where it does work.
 
 .. note:: If you install the system to a hard disk on one of the additional channels, it will not be bootable if the BIOS doesn't support booting from these channels.
 
-On Windows 2000 only, the additional channels can be enabled after the system is installed by going to the *Add New Hardware* control panel and adding a *Standard IDE/ESDI Hard Disk Controller* device for each additional channel. Configuration 0002 corresponds to the **tertiary** channel, while Configuration 0003 corresponds to the **quaternary** channel.
+On Windows 2000 only, the additional channels can be enabled after the system is installed through *Add New Hardware* similarly to Windows 95/98/Me above, although the I/O ports and IRQ cannot be changed. *Basic configuration 0003* corresponds to the **tertiary** channel, while *Basic configuration 0002* corresponds to the **quaternary** channel.
 
 Windows Vista and 7
 -------------------