Originally posted by: rebel
Hlafordlaes - can you give me bios settings mem timings that you recommend for my rig? thanks.. ram says its 5-5-5-18 but i have everything set to AUTO
Here are my current settings:
CPU Configuration
CPU: e4500 (800Mhz, or 200MHz FSB default)
Overclock Mode [CPU,PCIE Sync.]
CPU Frequency (MHz) [266]
PCIE Frequency (MHz) [100]
PCI Frequency [33.33MHz]
Spread Spectrum [Disabled]
Boot Failure Guard [Enabled]
Ratio [10]
Max CPUID Value Limit [Disabled]
No-Execute Memory Protection [Disabled]
Chipset Configuration
DRAM Frequency [266MHz (DDRII533) ]
Flexibility Option [Disabled]
DRAM CAS# Latency [3] - manually set to match my particular RAM
DRAM Bank Interleave [Auto]
Precharge to Active (Trp) [Auto]
Active to Precharge (Tras) [8] - manually set below SPD values
Active to CMD (Trcd) [Auto]
REF to ACT/REF to REF (Trfc) [Auto]
ACT (0) to ACT (1) (Trrd) [Auto]
Read to Precharge (Trtp) [Auto]
Write to Read CMD (Twtr) [Auto]
Write Recovery Time (Twr) [Auto]
DRAM Bus Selection [Dual Channel]
DRAM Command Rate [2T]
? Advanced Memory Configuration
[Untouched] - Really trying hard to find guidelines from VIA or Asrock on these, as I am sure that the 2nd DDR2 slot holds things back a bit and these settings AFAIK set timing offsets per channel, so in theory some tweaking would do some good.
? Advanced Host Configuration
Pipeline DRQCTL [Enabled]
GTL Control [Auto]
DRAM Voltage [Low]
AGP Voltage [High]
Primary Graphics Adaptor [AGP]
AGP Mode [8x]
AGP Fast Write [Enabled]
AGP Aperture Size [256MB]
AGP Staggered Delay [None]
AGP GADSTB Output Delay [None]
AGP 3.0 Calibration [Auto]
AGP 3.0 DBI Function [Auto]
DBI Output for AGP Trans. [Auto]
DBI Output for FRAME Trans. [Auto]
V-Link Speed [Normal]
PCI Delay Transaction [Disabled]
IDE Drive Strength [Normal]
PCIE Downstream Pipeline [Disabled]
OnBoard LAN [Disabled]
OnBoard HD Audio [Enabled]
Front Panel [Enabled]
CD-In [Enabled]
Bus No. [80] - Note: a 02 setting will make audio impossible to install in Vista
Echo TPR Disable [Auto]
There are a couple of settings not listed from my modded pctreiber bios, but they are on Auto and are not too important AFAIK.
In gral, mem settings should all be auto except DRAM frequency. However, the bios does not detect the optimal CAS setting of my RAM, as listed in CPU-Z (SPD tab), so I lower it manually. I also experimented with Tras and found it stable at 8 (12 default).
Each case is different depending on the sticks, of course. I can't say why some users are not getting a 1:1 ratio when DRAM and CPU frequency are equal, as that should be the result.