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Chapter B - Hardware Installation

B. Hardware Installation

B.1 Before the Installation

The GDT controller is designed for minimum power consumption and maximum opera-

tional security. It therefore contains delicate electrical components (CMOS ). In order to

avoid damages caused by electrostatic charges, the following warning must be observed

during the installation:

Never take the GDT controller out of the antistatic bag un less this is done on an anti-

static work place and the person handling the GDT controller is secured against ele c-

trostatic charge through wrist bands. If these instructions are not ob served, the user

risks damage or destruction of the CMOS components of the GDT controller !

B.2 Tools

Before installing, please switch off the complete computer system and remove all cables

including the power cable. Open the case of the host computer with an appropriate screw-

driver (usually a medium sized Philips-screwdriver).

B.3 Installing the Cache RAM SIMM

If the GDT controller is not yet equipped with cache RAM, or if another SIMM is to be i n-

stalled, we recommend adding it before you install the GDT controller in your computer

system. As mentioned before, the GDT controller can be run with different cache RAM sizes.

The minimum cache RAM size is 2MB for GDT6110, GDT6115 and GDT6117, and 4MB

for all other controllers.

The maximum cache RAM size for GDT FAST SCSI RAID Control-

lers is 32MB. The maximum cache RAM size for GDT Wide SCSI and Wide & Ultra SCSI RAID

Controllers is 64MB. The GDT controller provides one socket for a standard 72 PIN (36-bit)

Fast Page Mode

memory module (PS/2), the SIMM (

ingle

nline

emory

odule).

The SIMM is properly plugged into the SIMM socket, if it is engaged correctly into the

socket's metal hooks and if all contacts of the SIMM are equally contacting the corr e-

sponding pins of the socket.

Automatic Cache RAM Recognition

Each time you switch on the computer system, the GDT controller automatically recognizes

how much cache RAM is available and configures itself accordingly.

Recommended SIMMs

SIMMs from Goldstar, Motorola, NEC, Samsung, Siemens, Texas Instruments, and Toshiba

have been successfully tested with the GDT controllers. This recommendation does not

imply an evaluation of quality. SIMMs from other manufacturers may be equally suitable. A

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Adaptec GDT651y Manuale Utente Pagina 33