User manual GIGABYTE GA-7IXE4

[. . . ] FCC Compliance Statement: This equipment has been tested and found to comply with limits for a Class B digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in residential installations. This equipment generates, uses, and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. [. . . ] (Default Value) Disabled 32 7IXE4 Motherboard · Security Option This category allows you to limit access to the Always and Setup, or just to Setup. Always Setup The system can not boot and can not access to Setup page will be denied if the correct password is not entered at the prompt. The system will boot, but access to Setup will be denied if the correct password is not entered at the prompt. (Default value) · Boot To OS/2 > 64MB Yes No Enabled Boot To OS/2. (Default Value) · BIOS Write Protect Enabled Disabled Enabled BIOS Write Protect function. (Default Value) · C000 32K Shadow- DC00 16K Shadow These categories determine whether optional ROM will be copied to RAM by 16 byte. Optional shadow is cached. 33 BIOS Setup Chipset Features Setup AMIBIOS SETUP ­ CHIPSET FEATURES SETUP ( C ) 1999 American Megatrends, Inc. All Rights Reserved **** SDRAM Timing **** Config SDRAM Timing Auto *SDRAM PH Limit 32 Cycles *SDRAM Idle Cycle Limit 8 Cycles *SDRAM TRC Bank Cycle Time 7 Cycles *SDRAM TRP SRAS Precharge 2 Cycles *SDRAM TRAS Timing 5 Cycles *SDRAM CAS Latency 3 Cycles *SDRAM TRCD Timing 2 Cycles DRAM Integrity Mode Memory Hole DRAM Burst Refresh Graphics Aperture Size USB Function USB KB Legacy Support Disabled Disabled Enabled 64MB Enabled Disabled ESC: Quit : Select Item F1 : Help PU/PD+/-/ : Modify F5 :Old Values (Shift)F2:Color F6 : Load BIOS Defaults F7 : Load Setup Defaults Figure 5: Chipset Features Setup *These seven items will be available when Config SDRAM Timing is set to Manual. · Config SDRAM Timing Auto Manual Set Config SDRAM Timing to Auto. (Default value) Set Config SDRAM Timing to Manual. · SDRAM PH Limit This function specify the number of consecutive Page-Hit requests to allow before choosing a non-Page-Hit request. (Default value) Set SDRAM PH Limit to 64 Cycles. 34 7IXE4 Motherboard · SDRAM Idle Cycle Limit This function specify the number of idle cycles to wait before precharging an idle bank. (Idle cycles are defined as cycles where no valid request is asserted to the MCT. ) 0 Cycles 8 Cycles 12 Cycles 16 Cycles 24 Cycles 32 Cycles 48 Cycles Disabled Set SDRAM Idle Limit to 0 Cycles. Disabled this function. · SDRAM TRC Bank Cycle Time This function specify the minimum time from activate to activate of the same bank. 3 Cycles 4 Cycles 5 Cycles 6 Cycles 7 Cycles 8 Cycles Set SDRAM TRC Timing Value to 3 Cycles. (Default value) Set SDRAM TRC Timing Value to 8 Cycles. · SDRAM TRP SRAS Precharge This function specify the delay from precharge command to activate command. (Default value) Set SDRAM TRP Timing Value to 3 Cycle. · SDRAM TRAS Timing This function specify the minimum bank (SRAS[2:0]#) active time. 2 Cycles 3 Cycles 4 Cycles 5 Cycles 6 Cycles 7 Cycles Set SDRAM TRAS Timing Value to 2 Cycles. Set SDRAM TRAS Timing Value to 7 Cycles. 35 BIOS Setup · SDRAM CAS Latency This function specify the delay from SCAS[2:0]# to data valid. (Default value) · SDRAM TRCD Timing This function specify the delay from the activation of a bank to the time that a read or write command is accepted. 4 Cycle Set SDRAM TRCD Timing Value to 4 Cycle. · DRAM Integrity Mode Disabled ECC Disabled this function. (Default Value) Set DRAM Integrity Mode to ECC. · Memory Hole Disabled 14MB-15MB 15MB-16MB 14MB-16MB Normal Setting. Set Address=14~16MB remap to ISA BUS. · DRAM Burst Refresh Disabled Enabled Disabled this function. (Default Value) 36 7IXE4 Motherboard · Graphics Aperture Size 32 MB 64 MB 128 MB 256 MB 512 MB 1 GB 2 GB Display Graphics Aperture Size is 32MB. Display Graphics Aperture Size is 2GB. · USB Function Disabled Enabled Disabled USB Function. [. . . ] The password typed now will clear the previously entered password from CMOS memory. To disable password, just press <Enter> when you are prompted to enter password. A message "PASSWORD DISABLED" will appear to confirm the password being disabled. Once the password is disabled, the system will boot and you can enter Setup freely. [. . . ]