-------------------------------- SECTION-2 | CONFIGURING YOUR VGA ADAPTER | -------------------------------- CONTENTS -------------------------------------------------------------------------- 2.1 Hardware Configuration 2.2 Jumper Settings 2.2.1 Enable/Disable Zero-Wait State: Jumper J1 and J2 2.2.2 Scan Rate Select: Jumper J7 2.2.3 Enable/Disable Autodetect: Jumper J8 2.2.4 ISA Bus Slot Select Jumper J6, J9 and J10 -------------------------------------------------------------------------- this section explains how to configure the adapter for use with your computer system. WARNING: Incorrect setting or use of the adapter may result in damage to the computer system, monitor, or the graphics adapter itself. Carefully read through this manu before installing the adapter in your system. Step-by-step instructions in the "In- stallation" section will guide you through the installation process. 2.1 Hardware Configuration Figure 1 is a diagram of the VGA graphics adpater. Board features are listed. Trident TVGA 8900D Feature Connector 旼컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴� � �袴袴袴袴袴袴敲 � � 旼� 旼� 旼� 旼� J8 J7 J1 훤袴袴袴袴袴袴� � � � � � � � � � � -|-|-|- � � � � � � � � � � -|-|-|- 旼컴컴컴� � � � � � � � � � � � TKD � � � 읕� 읕� 읕� 읕� 旼컴컴커 � 8001 � 봬컴� � � � 읕컴컴컴� � � � 旼� 旼� 旼� 旼� J6 J10 � CHIP � � � � � � � � � � � � -|-|- � � J2 旼컴컴컴컴컴컴커 � � � � � � � � � � � -|-|- 읕컴컴켸 -|- � VGA BIOS � 봬컴� � � � � � � � � � -|- 읕컴컴컴컴컴컴켸 � � 읕� 읕� 읕� 읕� J9 � � DRAM -|-|-|- � � -|-|-|- � 읕컴커 旼컴커 旼� � 읕컴컴컴컴컴켸 읕컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴켸 읕�-� FIGURE 1. 256KB/512KB/1.0MB Jumpers & component Locations 2.2 Jumper Settings You can adapt the VGA adapter for special hardware configura- tions using the given jumpers on the card. 2.2.1 Enable/Disable Zero-Wait State J1 and J2 allows you to enable/disable the adapter's ISA bus zero-wait state feature. When enabled (default), the CPU can transfer data to the VGA adapter at the zero-wait state rate through ISA bus. There are two zero-wait state stages that can be enabled or disabled. If your display exhibits pixel drop outs or the system hangs, use Jumper J2 to disable the first zero-wait state stage. If you still encounter problems, use Jumper J1 to disable the second zero-wait state stage. J2: Enable First Stage Zero-Wait J2: Disable First Stage Zero-Wait State State (Default:Pin 1 and 2 connected) (Pin 1 and 2 open) J1: Enable Second Stage Zero-Wait J1: Disable Second Stage Zero- State Wait State (Default: Pin 1 and 2 open) (Pin 1 and 2 conneted) 2.2.2 Select Scan Rate: J7 J7 allows you to configure the scan rates of extended VGA modes to be compatible with your multi-scanning monitor. J7 is operational for 4 DRAM (512k) and 8 DRAM (1MB) configurations only. If your monitor can scan at 48.7KHz, remove the Jumper pin across J7.J7 in the open position will allow non-interlaced display for 1024x768 modes and higher horizontal and vertical scan rates for 800x600-16 color (4 DRAM and 8 DRAM) and 800x600-256 (8 DRAM only). If your monitor cannot scan at 48.7KHz, leave the Jumper pin for J7 in the default position. This will give interlaced display for 1024x768 modes and reduced horizontal and vertical scan rates for the 800x600-16 color (4 DRAM and 8 DRAM) and 800x600-256 (8 DRAM). Reference Table a (Page 3-4), Table 4 (Appendix A-4), and your monitor specifications for more detail on scan rates. J7: 48.7 KHz Scan Rate J7: Default Scan Rate (Pin 1 and 2 Open) (Pin 1 and 2 connected) 2.2.3 Enable/Disable Autodetect: J8 J8 allows you to enable/disable the BIOS Autodetect feature. When enabled (default) the BIOS will determine whether the Graphics Adapter can operate with an 8-bit or 16-bit BIOS interface, and will configure the BIOS interface accordingly. When disabled, the board will boot up in its default BIOS interface setting (generally 8-bit). NOTE: If you have problems booting your system, set Jumper J8 to disable autodetect, or place the card in an 8-bit slot and set J6, J9 and J10 jumper according to 2.2.4. J8: Enable Autodetect J8: Disable Autodetect (Pin 1 and 2 Open) (Pin 1 and 2 connected) 2.2.4 8 or 16 Bit ISA Bus Slot Select J6, J9 and J10 are ued to select whether the VGA adapter is seated in a 8-bit or 16-bit slot. J10 setting for 16-bit slot J6,J9 setting for 8-bit slot