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3.33 GHz Remains Stable At Standard Voltage Levels, Continued

A 4.1 GHz Dual Core at $130 - Can it be True?
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The cooling performance of the box cooler is barely adequate. The system starts up trouble-free at 3.33 GHz, and our overclocking causes power consumption in idle mode to climb by about 6 watts. If the CPU is heavily loaded for some time, however, the system inevitably crashes because of overheating. The cause of this turns out to be the way in which the fan is controlled - it was designed by Intel to emit only a small amount of noise while active, but because of overclocking, power consumption levels climb by 24 W and the cooler gets into trouble. The controller can't react properly to this jump in energy consumption and the fan can't increase its speed fast enough to keep the CPU from overheating. It's also no help that your only options in the BIOS are to control the fan by PWM or voltage levels, or turn it off altogether.

The box cooler only works when this CPU is run at its standard clock rate. It's not designed for overclocking use.

Pentium D 805 Intel Standard CPU Cooler
Clock rate 100% utilization Idle mode
4.10 GHz crash crash
4.00 GHz crash crash
3.80 GHz crash crash
3.60 GHz crash crash
3.32 GHz crash 57 °C
2.66 GHz 78 °C 53 °C

After abandoning the Intel box cooler, we chose a Zalman model instead. We recommend the CNPS9500, one of the best coolers available on the market today.

The Zalman CNPS9500 has no difficulty handling heat levels at a CPU clock rate of 3.33 GHz.
Summary
  1. A Budget CPU At Top Speeds
  2. A Budget CPU At Top Speeds, Continued
  3. Inside the Pentium D 805
  4. The Secret Of The Multiplier
  5. 133 MHz FSB: Perfect For Overclocking
  6. How Is Breaking The 4 GHz Barrier Possible?
  7. How Is Breaking The 4 GHz Barrier Possible? Continued
  8. How Is Breaking The 4 GHz Barrier Possible? Continued
  9. Three Theories Where The Customer Comes Out Ahead
  10. Which Memory Clock Speed Is Most Suitable?
  11. The Right Chipset
  12. Keeping Cool When Power Consumed Tops 150 Watts at 4.1 GHz
  13. Keeping Cool When Power Consumed Tops 150 Watts at 4.1 GHz, Continued
  14. Power Consumption Levels Top 200 W
  15. Power Consumption Levels Top 200 W, Continued
  16. Energy Saving Functions Lack C1E
  17. Risk-free Overclocking, Including Heat Protection
  18. Ready For The 64 Bit Future
  19. Tom's Hardware Guides Overclocking Diary
  20. 3.33 GHz Remains Stable At Standard Voltage Levels
  21. 3.33 GHz Remains Stable At Standard Voltage Levels, Continued
  22. Trouble Free Operation At 3.60 GHz
  23. At 3.8 GHz Some Minor Voltage Increases Become Necessary
  24. Water Cooling Is Recommended For 4.0 GHz
  25. Water Cooling Is Recommended For 4.0 GHz, Continued
  26. Overclocking To 4.10 GHz Boosts Basic Clock Speed By 54 Percent
  27. Overclocking To 4.10 GHz Boosts Basic Clock Speed By 54 Percent, Continued
  28. Will The System Boot At 4.3 GHz?
  29. Benchmark Results Show Performance Increases Of Up To 54 Percent
  30. 3D, Continued
  31. 3D, Continued
  32. Video Editing / Video Encoding
  33. Video, Continued
  34. Video, Continued
  35. Audio Encoding
  36. Office Applications
  37. Office Applications, Continued
  38. Parallel Applications - Multitasking
  39. Synthetic Benchmarks
  40. Synthetic Benchmarks, Continued
  41. Synthetic Benchmarks, Continued
  42. Synthetic Benchmarks, Continued
  43. Summary Overview: Who's The Winner?
  44. Conclusion: The 4.1 GHz Dual Core Delivers Peak Performance For Pocket Change
  45. Conclusion, Continued
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