400FSB BIOS Settings
We have decided to provide users with both 400 and 450FSB starting points for quad-core processors. These settings are geared towards a performance oriented setup for 24/7 usage. Individual systems will require stability testing according to personal preferences and component selections. The settings shown are a guideline only; voltages may vary according to individual components and motherboard ability. Remember, perseverance is the key when overclocking!
2GB QX9650 BIOS settings
| Gigabyte GA-X48T-DQ6 Bios Settings @ 400FSB | |
| Robust Graphics Booster | Turbo |
| CPU Clock Ratio | 9x |
| CPU Frequency | 400FSB |
| CPU Host Clock Control | Enabled |
| CPU Host Frequency (MHz) | 400 |
| PCI Express Frequency (MHz) | 100 |
| C.I.A.2 | Disabled |
| Performance Enhanced With | Extreme |
| System Memory Multiplier | 4.00B |
| DRAM Timing Selectable | Manual |
| CAS Latency Time | 6 |
| DRAM RAS# to CAS# Delay | 6 |
| DRAM RAS# Precharge | 6 |
| Precharge delay (tRAS) | 18 |
| ACT to ACT Delay (tRRD) | 4 |
| Rank Write To READ Delay | 7 |
| Write To Precharge Delay | 10 |
| Refresh to ACT Delay | 60 |
| Read to Precharge Delay | 5 |
| Static tRead Value | 6 |
| Static tRead Phase Adjust | Auto |
| Command Rate | 1N |
| CPU/PCIEX Clock Driving | 800mV |
| CPU Clock Skew Control | Normal |
| (G)MCH Clock Skew Control | Normal |
| System Voltage Control | Manual |
| DDR3 Overvoltage Control | (+)0.55 |
| PCI-E Overvoltage Control | Normal |
| FSB Overvoltage Control | (+)0.35 |
| (G)MCH Overvoltage Control | (+)0.25V |
| Loadline Calibration | Disabled |
| CPU Voltage Control | Normal |
If stability issues are experienced with these settings or lower a VDimm is favored, CAS 7-6-6-18 - 1N timings should suffice.
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