The choice of options in this BIOS feature depends entirely on the setting of the DRAM Ratio H/W Strap or N/B Strap CPU As BIOS feature.
When DRAM Ratio H/W Strap has been set to Low, the available options are 1:1 and 3:4. When DRAM Ratio H/W Strap has been set to High, the available options are 1:1 and 4:5. When N/B Strap CPU As has been set to PSB800, the available options are 1:1, 3.2 and 5:4. When N/B Strap CPU As has been set to PSB533, the available options are 1:1 and 4:5. When N/B Strap CPU As has been set to PSB400, the only available option is 3:4.
The options of 1:1, 3:2, 3:4 and 4:5 refer to the available CPU-to-DRAM (or CPU: DRAM) ratios.
BIOS Option Of The Week - DRAM PreChrg to Act CMD at TechARP
Posted on Sunday, December 23 2012 @ 16:55 CET by Thomas De Maesschalck
This week TechARP reveals the details of the DRAM PreChrg to Act CMD BIOS setting, you can learn about it over here.