Overclocking of the KT600 Dragon Ultra Platinum
Soyo uses the Award Bios version 6.0 with a Soyo Combo feature menu where all your settings for overclocking are found. Here you can set your system performance optimisations, FSB, AGP/PCI ratio, DRAM ratio, CPU/DRAM/AGP voltages as well as your Serial ATA functions and various other onboard features.
First off we will look at your system performance settings. You have three options of Normal, Fast or Turbo.
Next you have your CPU Frequency mode. Here you have the pre-determined speeds as well as a manual setting. When set to Manual you can adjust the FSB in 1MHz increments up to a maximum of 300MHz.
Next we have your CPU to PCI divider ratio. One disadvantage of the VIA chipset is the inability to lock the PCI/AGP divider ratios. However you can set your divider to either /3, /4 or /5 depending on your CPU FSB speed. A system clock shows you what your new PCI frequency will be before restarting the PC.
Now we have your DRAM clock settings. Here you can select either 200/266/333/400Mhz or allow the system to use the SPD of your memory to determine the speed of the RAM.
CPU core voltages are very flexible with settings from 1.475v up to 1.85v in 0.025v increments; this is the maximum safe level for AMD CPU's these days. DDR voltage are selectable from 2.5v up to 2.8v in 0.1v increments, this is average settings for an overclockers motherboard these days. AGP voltage settings are adjustable from 1.5v up to 1.8v in 0.1v increments.
Using our unlocked AMD Athlon XP 2500+ Barton CPU we managed a FSB of 256MHz, however, pushing above 258MHz the system's PCI bus became unstable. In all we were reasonably pleased with the overclocking options.
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