- Oct 14, 1999
- 11,977
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Is there any CPU programs that allow us to overclock while in Windows, but then to backoff the speed while in idle... like a laptop does to save juice? It would be really sweet to have several "steps" to run the CPU at, rather than to have it dynamically jumping up and down in PCI and AGP frequency.
Imagine an AMD 2000+ XP/T-bred system:
IDLE SPEED - 300MHz, 1.3v/.9v, 3x 100fsb, 33pci, 66agp, Halt command
LOW SPEED - 600MHz, 1.35v/1.0v, 6x 100fsb, 33pci, 66agp
MEDIUM SPEED - 1.25GHz, 1.5v/1.25v, 12.5x 100fsb, 33pci, 66agp
HIGH SPEED - 1.67GHz, 1.65v/1.35v, 12.5x 133fsb, 33pci, 66agp
LUDICROUS SPEED - 1.8GHz, 1.85v/1.45v, 11x 166fsb, 33pci, 66agp
Imagine an Intel 2.4GHz P4 system:
IDLE SPEED - 1.2GHz, 1.0v, 18x 266fsb (66x4), 33pci, 66agp, Halt command
LOW SPEED - 1.2GHz, 1.2v, 18x 266fsb (66x4), 33pci, 66agp
MEDIUM SPEED - 1.8GHz, 1.35v, 18x 400fsb (100x4), 33pci, 66agp
HIGH SPEED - 2.4GHz, 1.55v, 18x 533fsb (133x4), 33pci, 66agp
LUDICROUS SPEED - 2.56GHz, 1.7v, 18x 568fsb (142x4), 33pci, 66agp
Q: Why would this be sweet?
A: Because you'd be burning far less juice when the machine is idle or does not require much power. I'm all for keeping the room both quiet and cool.
Q: How would the machine decide between IDLE, LOW, MEDIUM, HIGH, and LUDICROUS speeds?
A: Your threads run at different priority levels, from low to high priority. As the threads are running they use only so much of the processor's time. The speed would be decided by reaching thresholds of processor time used. There is also an "IDLE speed" which could be set for when your machine is below a certain threshold (like <5%), or in standby mode. As a safety measure, the LUDICROUS speed would be for only times of >75% usage AND when manually enabled.
Q: Why does the XP/T-bred processor have two voltages listed?
A: The XP processor is built on the .18 micron process and uses more voltage than the Thoroughbred (T-bred), the latter of which is on the .13 micron process.
Q: Why do the XP and T-bred processors use different multipliers for the CPU?
A: Because it can, at least if AMD leaves them unlocked.
Imagine an AMD 2000+ XP/T-bred system:
IDLE SPEED - 300MHz, 1.3v/.9v, 3x 100fsb, 33pci, 66agp, Halt command
LOW SPEED - 600MHz, 1.35v/1.0v, 6x 100fsb, 33pci, 66agp
MEDIUM SPEED - 1.25GHz, 1.5v/1.25v, 12.5x 100fsb, 33pci, 66agp
HIGH SPEED - 1.67GHz, 1.65v/1.35v, 12.5x 133fsb, 33pci, 66agp
LUDICROUS SPEED - 1.8GHz, 1.85v/1.45v, 11x 166fsb, 33pci, 66agp
Imagine an Intel 2.4GHz P4 system:
IDLE SPEED - 1.2GHz, 1.0v, 18x 266fsb (66x4), 33pci, 66agp, Halt command
LOW SPEED - 1.2GHz, 1.2v, 18x 266fsb (66x4), 33pci, 66agp
MEDIUM SPEED - 1.8GHz, 1.35v, 18x 400fsb (100x4), 33pci, 66agp
HIGH SPEED - 2.4GHz, 1.55v, 18x 533fsb (133x4), 33pci, 66agp
LUDICROUS SPEED - 2.56GHz, 1.7v, 18x 568fsb (142x4), 33pci, 66agp
Q: Why would this be sweet?
A: Because you'd be burning far less juice when the machine is idle or does not require much power. I'm all for keeping the room both quiet and cool.
Q: How would the machine decide between IDLE, LOW, MEDIUM, HIGH, and LUDICROUS speeds?
A: Your threads run at different priority levels, from low to high priority. As the threads are running they use only so much of the processor's time. The speed would be decided by reaching thresholds of processor time used. There is also an "IDLE speed" which could be set for when your machine is below a certain threshold (like <5%), or in standby mode. As a safety measure, the LUDICROUS speed would be for only times of >75% usage AND when manually enabled.
Q: Why does the XP/T-bred processor have two voltages listed?
A: The XP processor is built on the .18 micron process and uses more voltage than the Thoroughbred (T-bred), the latter of which is on the .13 micron process.
Q: Why do the XP and T-bred processors use different multipliers for the CPU?
A: Because it can, at least if AMD leaves them unlocked.
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