Dram Timing Settings - JETWAY PT800DB - REV 1.0 User Manual

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. The settings are: Enabled and Disabled.
Video RAM Cacheable
Select Enabled allows caching of the video BIOS, resulting in better system performance.
However, if any program writes to this memory area, a system error may result. The settings are:
Enabled and Disabled.
Memory Hole
You can reserve this area of system memory for ISA adapter ROM. When this area is reserved,
it cannot be cached. The user information of peripherals that need to use this area of system
memory usually discusses their memory requirements. The settings are: Enabled and Disabled.
3-6-1

DRAM Timing Settings

CMOS Setup Utility – Copyright(C) 1984-2003 Award Software
System Performance
RAS Active Time
RAS Precharge Time
RAS to CAS Delay
DRAM CAS Latency
Bank Interleave
DRAM Command Rate
DRAM Burst Length
Write Recovery Time
Write to Read Command Delay
↑↓→← Move Enter:Select +/-/PU/PD:Value F10:Save ESC:Exit F1:General Help
F5:Previous Values
RAS Active Time
This field let's you insert a timing delay between the CAS and RAS strobe signals, used when
DRAM is written to, read from, or refreshed. Fast gives faster performance; and Slow gives
more stable performance. This field applies only when synchronous DRAM is installed in the
system. The settings are: 2T and 3T.
RAS Precharge Time
If an insufficient number of cycles is allowed for the RAS to accumulate its charge before DRAM
refresh, the refresh may be incomplete and the DRAM may fail to retain date. Fast gives faster
performance; and Slow gives more stable performance.
synchronous DRAM is installed in the system. The settings are: 2T and 3T.
DRAM Timing Settings
By SPD
7T
3T
3T
2.5
Enabled
2T Command
8
2T
3T
F6:Optimized Defaults
27
Item Help
Menu Level >>
F7:Standard Defaults
This field applies only when