BIOS Setup
the CAS and RAS strobe signals, used when DRAM is written to, read from or refreshed. Fast speed offers faster performance while slow speed offers more stable performance. Settings: 4, 3, 2 (clocks).
DRAM RAS# Precharge
This item controls the number of cycles for Row Address Strobe (RAS) to be allowed to precharge. If insufficient time is allowed for the RAS to accumu- late its charge before DRAM refresh, refresh may be incomplete and DRAM may fail to retain data. This item applies only when synchronous DRAM is installed in the system. Available settings: 4, 3, 2 (clocks).
Memory Frequency For
Use this item to configure the clock frequency of the installed DRAMs. Set- ting options: Auto, DDR266, DDR333, DDR400.
System BIOS Cacheable
Selecting Enabled allows caching of the system BIOS ROM at F0000h- FFFFFh, resulting in better system performance. However, if any program writes to this memory area, a system error may result. Setting options: Enabled, Disabled.
Video BIOS Cacheable
Selecting Enabled allows caching of the video BIOS ROM at C0000h to C7FFFh, resulting in better video performance. However, if any program writes to this memory area, a system error may result. Setting options: Disabled, Enabled.
Memory Hole At 15M-16M
In order to improve performance, certain space in memory can be reserved for ISA peripherals. This memory must be mapped into the memory space below 16MB. When this area is reserved, it cannot be cached. Settings: Enabled, Disabled.
Delay Prior to Thermal
When the CPU temperature reaches a factory preset level, a thermal monitor- ing mechanism will be enabled following the appropriate timing delay speci- fied in this field. With the thermal monitoring enabled, clock modulation controlled by the processor’s internal thermal sensor is also activated to keep the processor within allowable temperature limit. Setting options: 4 Min, 8 Min, 16 Min, 32 Min.
