User manual TYAN THUNDER I840

[. . . ] TM Thunder i840 S2520 User's Manual Revision 1. 01 Copyright © Tyan Computer Corporation, 2001. No part of this manual may be reproduced or translated without prior written consent from Tyan Computer Corp. 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. Thunder i840 S2520 is a trademark of Tyan Computer Corporation. AMIBIOS is a trademark of American Megatrends, Inc. [. . . ] [Default is Enabled] Sets the type of caching algorithm that will be used for the L1 internal cache memory. [Default is Write-Back] Sets the type of caching algorithm that will be used for the L2 external cache memory. [Default is Enabled] Primary Display Parity Check Boot to OS/2 Wait for `F1' if error Hit `DEL' Message Display Internal Cache System BIOS Cacheable Thunder i840 S2520 31 3. 2-E. Onboard Device Configuration In this sub-screen, you can enable or disable certain devices as your needs require. Enable or disable the integrated SCSI controller. [Default setting is Enabled] Allow for optional ROM features. [Default is Enabled] Onboard SCSI Onboard SCSI Option ROM 3. 2-F. Event Log Configuration In this sub-screen you can access the log that is created when bootup errors occur. This log will help you troubleshoot any configuration problems you might experience. The status of the Event Log is shown on the top half of the screen. Event Logging If set to Enabled, bootup error events will be logged. [Default is Enabled] If set to Enabled, ECC events will be logged. [Default setting is Disabled] If set to Yes, the event log will be cleared on saving of BIOS settings followed by reboot. [Default is No] Shows you the Event Log. By using this option, the events in the Event Log can be organized to help troubleshoot configuration problems. ECC Event Logging Clear All Event Logs View Event Log Mark All Events As Read 32 http://www. tyan. com 3. 3 Chipset Setup The Chipset Setup is for advanced configuration of the motherboard attributes. Processor Serial Number Reserved function. [Default is Disabled] Specifies how the 16k of video ROM is treated at the listed address. Disabled: contents of video ROM are not copied to RAM Enabled: contents of video ROM at listed address segment is copied (shadowed) from ROM to RAM for faster execution. Cached/WP: contents of video ROM from listed address segment are copied from ROM to RAM and can be written to or read from cache memory. [Default is Cached] C000 - C400, 16k Shadow C800 - DC00, 16k Shadow [Default is Disabled] BIOS Act to Deact [Default is 6Clks] Act to Read/Write [Default is 3Clks] Sets length of RAS precharge part of DRAM system memory access cycle when SDRAM system memory is installed. [Default is 3Clks] RAS Precharge Time RA Cycle Time [Default is 10Clks] Write to Deact [Default is 3Clks] SDRAM CAS Latency [Default is CAS Latency 3] ISA IO Cycle Delay [Default is 1. 5 Bclk] MPS 1. 4 Support [Default is Enabled] Thunder i840 S2520 33 3. 3-A. [MCH] RAMBUS Sets clock speed of Rambus memory. [Default is 400 MHz] Graphics Sets memory aperture for onboard graphics. [. . . ] SCSI is an industry-standard computer interface for connecting SCSI devices such as HDDs, CD-ROMs, etc. There are several variations of SCSI, including UltraSCSI, Ultra2 SCSI, Ultra Wide, and so on. SDRAM (Synchronous Dynamic RAM): called as such because it can keep two sets of memory addresses open simultaneously. By transferring data alternately from one set of addresses and then the other, SDRAM cuts down on the delays associated with non-synchronous RAM, which must close one address bank before opening the next. Serial port: called as such because it transmits the eight bits of a byte of data along one wire, and receives data on another single wire (that is, the data is transmitted in serial form, one bit after another). SIMM (Single In-line Memory Module): formerly the most common form of RAM for motherboards. They must be installed in pairs, and do not have the carrying capacity or the speed of DIMMs. 56 http://www. tyan. com SIMM bank/socket: SIMM sockets are the physical slots into which you install SIMM modules. [. . . ]