At 3.8 GHz Some Minor Voltage Increases Become Necessary

12:26 - Wednesday 10 May 2006 by Bert Töpelt
Source: Tom's Hardware – Keywords: dual, 41, ghz, cores, uk

Table of content:
23 – At 3.8 GHz Some Minor Voltage ...
  1. 1 – A Budget CPU At Top Speeds
  2. 2 – A Budget CPU At Top Speeds, Continued
  3. 3 – Inside the Pentium D 805
  4. 4 – The Secret Of The Multiplier
  5. 5 – 133 MHz FSB: Perfect For Overclocking
  6. 6 – How Is Breaking The 4 GHz Barrier Possible?
  7. 7 – How Is Breaking The 4 GHz Barrier Possible? Continued
  8. 8 – How Is Breaking The 4 GHz Barrier Possible? Continued
  9. 9 – Three Theories Where The Customer Comes Out Ahead
  10. 10 – Which Memory Clock Speed Is Most Suitable?
  11. 11 – The Right Chipset
  12. 12 – Keeping Cool When Power Consumed Tops 150 Watts at 4.1 GHz
  13. 13 – Keeping Cool When Power Consumed Tops 150 Watts at 4.1 GHz, Continued
  14. 14 – Power Consumption Levels Top 200 W
  15. 15 – Power Consumption Levels Top 200 W, Continued
  16. 16 – Energy Saving Functions Lack C1E
  17. 17 – Risk-free Overclocking, Including Heat Protection
  18. 18 – Ready For The 64 Bit Future
  19. 19 – Tom's Hardware Guides Overclocking Diary
  20. 20 – 3.33 GHz Remains Stable At Standard Voltage Levels
  21. 21 – 3.33 GHz Remains Stable At Standard Voltage Levels, Continued
  22. 22 – Trouble Free Operation At 3.60 GHz
  23. 23 – At 3.8 GHz Some Minor Voltage Increases Become Necessary
  24. 24 – Water Cooling Is Recommended For 4.0 GHz
  25. 25 – Water Cooling Is Recommended For 4.0 GHz, Continued
  26. 26 – Overclocking To 4.10 GHz Boosts Basic Clock Speed By 54 Percent
  27. 27 – Overclocking To 4.10 GHz Boosts Basic Clock Speed By 54 Percent, Continued
  28. 28 – Will The System Boot At 4.3 GHz?
  29. 29 – Benchmark Results Show Performance Increases Of Up To 54 Percent
  30. 30 – 3D, Continued
  31. 31 – 3D, Continued
  32. 32 – Video Editing / Video Encoding
  33. 33 – Video, Continued
  34. 34 – Video, Continued
  35. 35 – Audio Encoding
  36. 36 – Office Applications
  37. 37 – Office Applications, Continued
  38. 38 – Parallel Applications - Multitasking
  39. 39 – Synthetic Benchmarks
  40. 40 – Synthetic Benchmarks, Continued
  41. 41 – Synthetic Benchmarks, Continued
  42. 42 – Synthetic Benchmarks, Continued
  43. 43 – Summary Overview: Who's The Winner?
  44. 44 – Conclusion: The 4.1 GHz Dual Core Delivers Peak Performance For Pocket C...
  45. 45 – Conclusion, Continued

At 3.8 GHz Some Minor Voltage Increases Become Necessary

Ad

We continued our attempts to increase the speed of the FSB clock rate and boot the system at 190 MHz FSB. We could no longer sustain stable operation at this speed, which led us to boost CPU core voltage levels. We raised the voltage in steps of 0.025 V until the processor could operate without crashing at peak load. We achieved this goal when the voltage levels reached 1.500 V, or 0.1625 V above the standard level.

After increasing the input voltage, the system boots without difficulty at 3.8 GHz.

CPU-Z also fails to show the correct voltage here as well.

Of course, power consumption also increases as a result of raising the input voltage, but the Zalman cooler was able to handle the corresponding increase in temperatures without any problem, which enabled continued work at a modest noise level. In fact, it wasn't even necessary to set the fan rotation speed to its maximum value just yet.

In idle mode, power consumption was about 14 W higher than at 3.6 GHz. When the system was heavily loaded, however, it took a noticeable leap upward of about 36 W - the average power consumption of the CPU climbed to nearly 190 W.

RAM performance increases in lockstep with CPU clock rate; we could now select a memory clock of DDR2-760 in the BIOS, which produced an increase of 7.6 percent in memory performance.

Settings allowed for the memory at a 190 MHz FSB clock rate.

Talkback
Be the first to comment on this review!

Note You are going to post a comment as anonymous.



  •
Submit my comment
Google Ads