Acer Veriton 7800 Veriton 5800/6800/7800 Service Guide (Gigabyte MB) - Page 40

Advanced Chipset Features CMOS Setup Utility-Copyright © 1984-2005 Award Software Advanced Chipset Features Item Help CAS Latency Time [Auto] Menu Level DRAM RAS# to CAS# Delay [Auto] DRAM RAS# Precharge [Auto] Active to Precharge Delay [Auto] Refresh Mode Select [Auto] ** On-Chip VGA Setting ** DVMT Mode On-chip Video Memory Size [Both] [128MB] : Move Enter: Select F5: Previous Values +/-/PU/PD: Value F10:Save F7: Default Settings ESC: Exit F1: General Help Parameter CAS Latency TIme Description When synchronous DRAM is installed, the number of clock cycles of CAS latency depends on the DRAM timing. Options 5,4,3,6,Auto 2,3,4,5,6,Auto DRAM RAS# to CAS# Delay This field lets 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. DRAM 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 data. Fast fives faster performance; and Slow gives more stable performance.This field applies only when synchronous DRAM is installed in the syste. This option is used to set up the timing delay between the SDRAM active to precharge. This option is used to set up e the Refresh Mode 2,3,4,5,6,Auto Active Precharge Delay Refresh Mode Select 4,5,6,7,8,9,10,11, 12,Auto 7.8us 15.6us Auto DVMT Mode On Chip Memory Size This option is used to select the video mode. Select the on chip memory size for VGA drive use. Fixed,DVMT,Both 39 Chapter 2