User manual TYAN TOMCAT I7230B

[. . . ] Tomcat i7230B /// Version 1. 0 S5161 Copyright Copyright © TYAN Computer Corporation, 2005. No part of this manual may be reproduced or translated without prior written consent from TYAN Computer Corp. Trademark All registered and unregistered trademarks and company names contained in this manual are property of their respective owners including, but not limited to the following. Intel, Prescott, and combinations thereof are trademarks of Intel Corporation. IBM, PC, AT, and PS/2 are trademarks of IBM Corporation. Notice Information contained in this document is furnished by TYAN Computer Corporation and has been reviewed for accuracy and reliability prior to printing. [. . . ] Disabled / Enabled No Execute Mode Mem Protection This feature is used to enable the function of No Execute Mode Mem Protection. Enabled / Disabled Frequency Ratio This feature is used to set the Frequency Ratio Default / X 8 / 19 /14 /15 / 16 / 17 / 18 54 http://www. tyan. com 3. 3. 3 I/O Device Configuration This setting allows you to configure I/O devices. Serial Port A/B: This defines how the first serial port is detected and configured. Disabled / Enabled Base I/O Address: Set the base I/O address for serial port A/B. 3F8 / 2F8 / 3E8 / 2E8 Interrupt: Set the interrupt for serial port A/B. IRQ3 / IRQ4 Parallel Port This defines how the parallel port is detected and configured. Disabled / Enabled Mode This field allows the user to select the parallel port mode. The default value is Standard that automatically selects the correct mode to use. The other modes are explained as follows: 55 http://www. tyan. com SPP works with all parallel port devices. However, it is the slowest transfer mode and should only be used when faster transfer modes cannot be used. There are two faster bidirectional modes available - the ECP (Extended Capabilities Port) and EPP (Enhanced Parallel Port) modes. ECP uses the DMA protocol to achieve data transfer rates of up to 2. 5 Mb/s and provides symmetric bidirectional communication. On the other hand, EPP uses existing parallel port signals to provide asymmetric bidirectional communication. Generally, because of its FIFOs and the DMA channel it uses, ECP is good for large data transfers (useful for scanners and printers). On the other hand, EPP is better with links that switch directions frequently (like parallel port drives). SPP / EPP / ECP Base I/O Address / Interrupt This determines the base address and interrupt of the parallel port. 378 / IRQ7 / Disabled / 278 / IRQ5 / 3BC / IRQ7 DMA Channel This BIOS feature determines which DMA channel the parallel port should use when it is in ECP mode. The ECP mode uses the DMA protocol to achieve data transfer rates of up to 2. 5 Mbits/s and provides symmetric bidirectional communications. By default, the parallel port uses DMA Channel 3 when it is in ECP mode. This feature is provided just in case one of your add-on cards requires the use of DMA Channel 3. In such a case, you can use this BIOS feature to force the parallel port to use the alternate DMA Channel 1. Please note that there is no performance advantage in choosing DMA Channel 3 over DMA Channel 1 or vice versa. As long as either Channel 3 or Channel 1 is available for your parallel port to use, the parallel port will be able to function properly in ECP mode. [. . . ] The CPU is lightly placed in an open ZIF socket, and a lever is pulled down. This shift the processor over and down, guiding into the board and locking it into place. 83 http://www. tyan. com Technical Support If a problem arises with your system, you should first turn to your dealer for direct support. Your system has most likely been configured or designed by them and they should have the best idea of what hardware and software your system contains. Furthermore, if you purchased your system from a dealer near you, take the system to them directly to have it serviced instead of attempting to do so yourself (which can have expensive consequences). [. . . ]