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Topic Title: S2K Control options - don't understand anything!
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Created On: 08/07/2005 11:13 AM
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 08/07/2005 11:13 AM
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Mr. Barton
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Joined: 08/06/2004

Hello
I have the Asus A7N8X-E Deluxe board and an AMD Athlon XP 2600+ Barton CPU. Recently, i downloaded a program called "S2K control" which helps keep the CPU cool by disconnecting it from the bus. What i'd like 2 understand is what are such things like "Halt Disconnect Divisor" and "Stop Grant Divisor" means and what numbers should give me optimal cooling (currently, i am using "8" 4 both settings but i really do not understand what is that 8 and what will happen if i choosed another numbers coz of my ignorance about what do these two options actually mean)

Also the program gives me 4 methods 4 making the bus disconnect. They are:
Default
Alternative
Default W/SBlive!
Alternative W/SBlive!

Again, i am really ignorant about these 4 methods and which one i should use.

THANKS

 08/08/2005 07:58 PM
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technic58
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i really dont hav any clue about that program, ive neevr used it, and i dont plan to. if your running XP, u dont need any cooling program because windows XP has a "system idle process" that halts the CPU wen its not in use.

if u hav any older OS(ex windows 98, 2000), id fully recommend a program called "rain2.0" or "CPUIdle". rain is freeware, cpuidle is shareware. but work pretty well.

however keep in mind, these programs dont cool a CPU from thesecond u turn on teh PC. they only kick in wen the CPU isnt being used.

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 08/21/2005 12:33 PM
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oingo456
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QUOTE(technic58 @ Aug 8 2005, 05:58 PM)i really dont hav any clue about that program, ive neevr used it, and i dont plan to. if your running XP, u dont need any cooling program because windows XP has a "system idle process" that halts the CPU wen its not in use.

if u hav any older OS(ex windows 98, 2000), id fully recommend a program called "rain2.0" or "CPUIdle". rain is freeware, cpuidle is shareware. but work pretty well.

however keep in mind, these programs dont cool a CPU from thesecond u turn on teh PC. they only kick in wen the CPU isnt being used.
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This is incorrect advice. You DO need a program like S2K on windows XP, for AMD processors without Powernow or quiet'n'cool. The bus disconnect feature is entirely different than the HLT instruction (and thus most CPU coolers,) and only for AMD. The bus disconnect also has to be supported by the motherboard chipset.

Rain and CPUIdle type programs are only necessary on windows 95/98 because those operating systems don't issue the HLT instruction when they are idle.

The bus disconnect feature saves a lot of power. I have a wattmeter hooked up to my UPS so I can monitor the power. On my old Athlon Thunderbird 1.2GHz server, the system pulls 138 watts (AC) whether it's at 100% cpu usage or idle. The processor does get hot.

When running S2K, the system drops to 82 Watts (AC) when idle and the cpu is completely cool. I do not notice any performance problems. This one program saves me 490 KWH per year on the server, (about $44 worth of electricity.)

I do have a problem with S2K in that it doesn't seem to auto-start properly, no matter where I launch it from the registry. I have to manually start it after the system is up and running. I haven't found any other program that works on the athlon thunderbird.


 08/22/2005 03:19 PM
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Sansei-K7
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Hi Mr. Barton! These four options were added to help you to force the decreasing of the CPU temperature in case the Creative SBLive! soundcard where installed. As for divisors, they are used to divide an internal CPU frequency when the processor is in the low power state. For example, a 2000MHz AMD processor with a defined Stop Grant divisor of 16 has an actual clock frequency of 125MHz in the Stop Grant low power state. Frankly speaking, I do not believe to this fairytale about frequencies, but I have a BIOS and Kernel Developers Guide for AMD K7 platform that explains how this technical crap really works. In addition, you may use my recent DRAGNOTT 2.0 utility (or CBId), that supports a lot of chipsets to enter the processor the low power state by activating a bus disconnect protocol. Besides, it may change divisors as well.

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 08/22/2005 03:56 PM
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MD - Moderator
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QUOTE(Sansei-K7 @ Aug 22 2005, 11:19 AM)Hi Mr. Barton! These four options were added to help you to force the decreasing of the CPU temperature in case the Creative SBLive! soundcard where installed. As for divisors, they are used to divide an internal CPU frequency when the processor is in the low power state. For example, a 2000MHz AMD processor with a defined Stop Grant divisor of 16 has an actual clock frequency of 125MHz in the Stop Grant low power state. Frankly speaking, I do not believe to this fairytale about frequencies, but I have a BIOS and Kernel Developers Guide for AMD K7 platform that explains how this technical crap really works. In addition, you may use my recent DRAGNOTT 2.0 utility (or CBId), that supports a lot of chipsets to enter the processor the low power state by activating a bus disconnect protocol. Besides, it may change divisors as well.
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As an aside...

Do you know the following Sansei?

Vitaliy Jungle, Honey-X et al

-------------------------
The opinions expressed above do not represent those of Advanced Micro Devices or any of their affiliates.

Physics? Ha! This is clearly magic and devilry at work. Prepare firewood! We have witches to burn!


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 08/23/2005 02:11 AM
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Sansei-K7
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QUOTE(MD Willington @ Aug 22 2005, 11:56 AM)As an aside...
Do you know the following Sansei?
Vitaliy Jungle, Honey-X et al
[right][snapback]486593[/snapback][/right]


Yeah, I know Vitaliy Jungle, because it is my real name =) I know Honey-X as well. We cooperate together at www.rhcf.com.

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AMD Embedded Computing Solutions Division Software Partner
AMD Alchemy and Geode Developers Team
Native Specialist - AMD ECSD CPUID tool
 08/23/2005 12:20 PM
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MD - Moderator
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Fellow RHCF member here...There's a few of us around here...

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The opinions expressed above do not represent those of Advanced Micro Devices or any of their affiliates.

Physics? Ha! This is clearly magic and devilry at work. Prepare firewood! We have witches to burn!


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