Adaptec GDTSETUP Manual do Utilizador descarregar pdf (Página 133)

133

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When using Expanded Memory Managers, a certain address area has to be excluded from

being controlled by these programs. This area is the GDT Dual Ported Memory address

space (sized 16KB ). If the ICP Controller is not run with the GDTX000.EXE driver (that is,

the driver has not been loaded from the CONFIG.SYS file), the address space of the GDT

BIOS must also be excluded (the size of the GDT BIOS is 8KB). If the GDTX000.EXE driver is

loaded from the CONFIG.SYS file in a line

before

the Expanded Memory Manager (EMM),

it is not necessary to exclude the address space of the GDT BIOS. Unlike ISA or EISA com-

puter systems where the controller’s BIOS address space is set manually (through jumpers

or the configuration file), PCI computers automatically map the address space of a periph-

eral PCI device (e.g., the ICP Controller with its BIOS and Dual Ported Memory) to a suit-

able location during a warm or cold boot. If the system configuration does not change (no

new PCI expansion cards are being added etc.), the PCI System BIOS will always map these

two spaces to the same addresses. To help you find out where these addresses have been

mapped to, the GDT BIOS indicates the physical address locations of the GDT BIOS and the

GDT DPMEM during the cold boot (also see chapter B in this manual):

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In this example, the GDT BIOS occupies E000:0000 to E000:1FFF (E000 is the segment ad-

dress).

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Here the DPMEM starts at D000:0000 and ends at D000:3FFF (D000 is the segment ad-

dress).

You may also use other utility programs such as Georg Schnurer’s (c’t magazine)

CTPCI

pro-

gram in order to obtain the requested address locations. On this occasion we would like to

thank Mr. Georg Schnurer and the c’t magazine for allowing us to use this very helpful utility on

our system disks.

Example 1: The Microsoft EMM386.EXE Manager is used. The GDT driver GDTX000.EXE has

not been loaded from the CONFIG.SYS:

DEVICE=EMM386.EXE X=D000-D3FF X=E000-E1FF

Example 2: The Microsoft EMM386.EXE Manager is used. The GDT driver GDTX000.EXE has

been loaded from the CONFIG.SYS:

DEVICE=EMM386.EXE X=D000-D3FF

(Note: You may have to add the path for "EMM386.EXE". Other parameters may follow the

excluded areas).

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In order to be able to install Windows 3.x, a fully operational MS-DOS operating system has

to be present on the chosen partition. Furthermore, the first entry in the CONFIG.SYS file

behind the HIMEM.SYS line has to be:

DEVICE=GDTX000.EXE

(if necessary, add the correct path name after the "=" symbol and before GDTX000.EXE).

(A)

Now install Windows according to the instructions given in the Windows manual. Gen-

erally, you start with Disk 1 - Setup from which you load the setup program. This Setup pro-

gram guides you through the entire installation and prompts you to insert further floppy

disks.

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