BIOS and Overclocking Results
Chaintech offers a very feature-packed BIOS with all the major I875P chipset tweaks, including the PAT system to increase memory performance by skipping four out of six wait states. Overclocking is also supported under the Frequency/Voltage Control menu; from here you can change the system speeds and voltages.
Front Side Bus speed is adjustable from 100MHz up to 255MHz in 1MHz increments. This was slightly disappointing as the clock generator onboard supports up to 350MHz FSB adjustments. A simple BIOS update is defiantly needed to fix this.
PCI and AGP frequencies can be locked to 33/66MHz respectively to allow the PCI and AGP buses to remain stable when pushing the FSB above specifications.
Enabling the Voltage Fine Tune function allows you access to CPU Voltage Regulator, DRAM voltage Regulator and AGP Voltage Regulator. CPU voltage can be changed to +0.1, +0.2 or +0.3 of default. This gives a maximum of 1.8v when using Northwood CPU's. More options for the voltage steps would have been ideal for better stability, but you do have enough juice to hit the high notes.
DRAM voltage steps are identical to the CPU, +0.1, +0.2 and +0.3 of default giving you 2.8v maximum on the DRAM, While this is good, up to +0.5 would have been better to allow higher DRAM frequencies when overclocking.
AGP voltages are of the same token as well, +0.1, +0.2 and +0.3 above normal. This is more than enough for today's AGP as you can lock the frequency, thus eliminating AGP bus overclocking.
In our tests we used an Engineering Sample 800Mhz 3.0Ghz Pentium 4, which is unlocked. We backed the multiplier down to 12x to see what the maximum speed we could get out of the board was. We managed to hit 255MHz FSB easy, thus maxing out the board's highest FSB speeds; Chaintech needs to update the BIOS in order to allow much more versatile FSB settings.
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- Chaintech 9CJS - Page 1 [Introduction]
- Chaintech 9CJS - Page 2 [Specifications]
- Chaintech 9CJS - Page 3 [Features]
- Chaintech 9CJS - Page 4 [Features Continued]
- Chaintech 9CJS - Page 5 [BIOS and Overclocking Results]
- Chaintech 9CJS - Page 6 [Benchmarks - Test System and Sandra 2003]
- Chaintech 9CJS - Page 7 [Benchmarks - System and Multimedia Productivity]
- Chaintech 9CJS - Page 8 [Benchmarks - Synthetic 3D and PC]
- Chaintech 9CJS - Page 9 [Benchmarks - OpenGL]
- Chaintech 9CJS - Page 10 [Benchmarks - Direct3D]
- Chaintech 9CJS - Page 11 [Conclusion]
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