Adaptec GDTSETUP Manual de usuario descargar pdf (Pagina 52)

1. The PCI computer system must automatically assign (map) the ICP Controller BIOS to

an adequate address in the lower, 1MB area of the computer system’s main memory.

2. The PCI computer system must map the ICP Controller’s Dual Ported Memory

(needed for high performance operation) to an adequate address in the lower, 1MB

area of the computer system’s main memory. In addition, it has to disable the shad-

owing of this address <SPACE>.

3. Assigning a system IRQ to a PCI interrupt.

The PCI 2.x specification prescribes 4 PCI interrupts, called INT A, INT B, INT C and

INT D. A PCI interrupt must be assigned to a free (unused) IRQ of the PCI mother-

board or computer. The ICP Controller is shipped with PCI INT A.

Depending on the manufacturer of the PCI computer system, there are several ways to

carry out this task:

 automatically (automatic IRQ routing)

 with the PCI System-BIOS setup program

 with the PCI System-BIOS setup program and

jumper settings on the system motherboard

Depending on the BIOS manufacturer (e.g., Award, Phoenix, etc.), the setup program

is activated by pressing a certain key-combination shortly after the reset (cold boot or

warm boot). For detailed information on the key-combination and the jumpers’ loca-

tions and settings, please refer to the system manual of your PCI motherboard or

computer.

The System is not fully PCI compatible.

Problems may occur if the motherboard and/or System-BIOS are not fully PCI 2.x compati-

ble. The best remedy is to update the PCI system-BIOS to the latest version.

Furthermore, we have integrated into our GDT BIOS various routines (tricks) which remedy

the incompatibilities of some PCI system-BIOSes, at least with regard to the ICP Controller.

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Now, after having installed the ICP Controller and the SCSI devices, check whether the con-

troller is working correctly. If the ICP Controller is the only controller in the computer sys-

tem, set hard disks C: and D: to not available in the System-BIOS setup program of the

computer. Normally, you can start the BIOS setup program by pressing a certain key-

combination after switching on the computer. After switching on the PCI computer system,

pay attention to the LEDs of the ICP Controller.

 If everything is installed correctly, the green LED "S" will light up when switching on the

PCI computer system. The green LED "S" (S for status) shows that the ICP Controller is

online. If this green LED does not react as described above, switch off the PCI computer

and double-check the correct installation of the ICP Controller.

 The electronic loudspeaker of the ICP Controller gives forth a series of 4 signals with a

pause between the first two).

 The other green LED "T" may flicker sometimes (it always lights up during BUS-Master

DMA transfers; the brighter it lights, the more DMAs).

 The yellow LEDs indicate accesses to the SCSI devices. They also may flicker occasion-

ally as GDT scans the SCSI channels for existing SCSI devices. The yellow LED "SCSI"

flickers whenever a SCSI device on any of the ICP Controller's SCSI channels is ac-

cessed.

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