Even though the NB76 is directed at the value market, DFI still managed to include some nice overclocking options for the enthusiasts among us. Firstly, you are able to adjust the FSB speed from 100MHz to 200MHz in 1MHz increments. The AGP/PCI ratio can also be adjusted from the options 66/33, 75/37.5 and 88/44. This ensures that the AGP and PCI devices don't become a bottleneck while overclocking. Multiplier adjustments are available through the BIOS, however, all Intel processors are multiplier locked (besides engineering samples of course), so this option will not be of much use to you. VCore adjustments are also available between 1.1v and 1.85v in 0.025v increments.
I was able to overclock my Willamette-based Pentium 4 2GHz (20x100) processor all the way up to 2.3GHz (20x115) with a VCore of 1.85v and an AGP/PCI ratio of 66/33. The heatsink/fan unit used was an Alpha PAL8942 with a 7000RPM delta fan. This is a very impressive overclock, especially considering that the processor is based on the older Willamette core and that only air-cooling was used.
During testing the board remained absolutely stable and I did not encounter one crash or lockup. The NB76 also lasted through 12 hours of 3DMark2001 loops without a single crash or reboot. As far as overclocking and stability goes, I was very pleased with the DFI NB76.
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- DFI NB76 - Page 1 [Introduction]
- DFI NB76 - Page 2 [Packaging & Software Bundle]
- DFI NB76 - Page 3 [Layout]
- DFI NB76 - Page 4 [Features]
- DFI NB76 - Page 5 [Benchmarks - Test Setup and Sandra]
- DFI NB76 - Page 6 [Benchmarks - System Prpductivity]
- DFI NB76 - Page 7 [Benchmarks - MadOnion]
- DFI NB76 - Page 8 [Benchmarks - OpenGL]
- DFI NB76 - Page 9 [Benchmarks - D3D]
- DFI NB76 - Page 10 [Overclocking]
- DFI NB76 - Page 11 [Conclusion]
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