under DOS and Windows
The Situation: You have a PS/2 and wanted to add a XGA-2 card to get more than the usual 16-VGA colours and higher resolution than 640 x 480.|
The Action: Follow these instructions and you will be able to use the XGA-2 with your machine.
The XGA-2 card requires a 386 or better processor. It does not run in a Mod. 50 or 60 - not even if they are equipped with a 386/486 processor upgrade kit. The Mod. 50/60 systemboard is incapable to do the required 32-bit busmaster transfers. The minimum machine is a Mod. 8555 (55SX) or 8565 (65SX) !
First Step: In either case you will need the XGA / XGA-2 option disk Version 2.2 from IBM-ftp.
Download the file and run the EXE; follow the instructions on the screen and create the option disk on a new, error-free 1.44MB floppy.
Second Step: You will have to update the reference disk / reference partition of your machine with the option files from this disk. Unlike to the "usual procedure" with "Copy an option disk" it is here required to boot with the XGA Option disk.
Select the type of machine from the XGA option disk update menu and let the update proceed.
Third Step: Power down the machine and install the XGA-2 card. Detach the monitor from the planar VGA-port and attach it to the XGA card.
Fourth Step: Assumed you did everything right and the machine comes up with no errors and behaves as usual - you will now have to install the XGA video drivers - if any required.
If you are running Windows 95 you only need to click with the right mouse button at a free spot on your desktop, then click on "Properties" to open the "Display Properties Menu".
From this menu select "Settings", then "Change Configuration ...".
Under "Graphic Card" select "Change...", switch on "Show all Models" and select "IBM" and "IBM XGA/2". Click on "OK".
Under "Monitor" try to find your monitor type or one which is as close as possible to it.
Use "OK" and the system will (probably) need to copy some files from the Win95 installation CD / disks / directory. After a restart everything should work out fine.
You can change the screen resolution / color depth in the "Display Properties"-menu as well - but the M$-driver for the XGA does not support all video modes of the XGA-2 ... basically it is a driver for the XGA-1, which for example did not support the 800 x 600 mode at all. The maximum color depth of 64K-colors can only be used in 640 x 480; the XGA-2 card however can do it under 800 x 600 as well - but the Win95-driver doesn't support it.
If you are running DOS and Win 3.x (Windows 3.1, 3.11 or Windows for Workgroups 3.11) you need a different strategy - and an additional XGA-2 DOS / WIN3.x Driver disk.
Download and extract this disk by running the EXE as well and follow the instructions on the screen.
Then return to the previous menu end select "Quit" - remove the disk from A: and reboot the machine to activate the changes in the AUTOEXEC.BAT and start the DMQS-system.
This was the basic DOS installation part.
The DMQS-installation *might* be useful even under Windows 95 - in case you have a somewhat unconventional monitor (not included in the Win95-database) and must use the XVGARATE-utility from the XGA 2.12 drivers disk to override the Win95 monitor refresh setting for e.g. 72 or 75Hz refresh.
Now you need to install the Win 3.x-drivers.
You need the Windows Installation Disks or need to have the Windows CD or to know the name of the installation directory !
At the DOS-prompt C: change into the Windows directory.
In the "Setup Menu" select "Display" and press [ENTER]. From the following selection use "OEM-disk from manufacturer".
After finishing this you can start Windows. Most likely your system will come up in a hi-resolution / 256-colors mode already, depending on the type of monitor you'd selected for the DMQS.
Open "Main", open "System Control". You will notify a new icon: "XGA Setup". Click at it.
Here are some lists:
Don't forget that the full advantage of the DMQS-system is only given under DOS / Windows 3.x with the IBM XGA-2 Driver 2.12 installed. At least the third table is not applicable for Windows 95 and also most of the modes mentioned in Table 1 are not supported under Win95 - blame Microsoft for that. The XGA-2 Hardware CAN do it ... the drivers cannot.
Feel free to report experiences.
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