View Poll Results: Which do you think is more power efficient?
- Voters
- 1. You may not vote on this poll
-
Knoppix Power Management
Anyone know anything about how the knoppix power consumption relates to windows or DOS? Or just plain facts about Knoppix power usage or managment?
-
Windows XP performs better here because power management hardware is better supported under win
It's all a matter of good drivers und good configuration which is not the case with Linux and some/a lot of mainboards/notebooks. I've spent a lot of time to configure my desktop and notebook to have good power management support. The standard Knoppix installation is very poor in this case. On my desktop (mainboard is MSI KT880 Delta) which supports mobile Athlon XP's is the power management feature not available at all. Exspecially in the case if you have a mobile version of an Athlon XP. The support for this lacks completely in Linux because there is no support for this in the kernel at all. I say "Linux" because this is not only the problem with Knoppix. In Windows you have tools like CrystalCPUID and others to control multiplikator, FSB and core voltage which are very great tools. These tools are availabe with source code and are licensed under the BSD license. I'm surprised why nobody has transferred these tools to Linux
BUT there is one tool for Linux which is very "cool", called athcool, which can be found here: http://members.jcom.home.ne.jp/jacob...softwares.html
READ compatiblity list! You system may crash when you use it! On my system it works very fine. So try it out when you have backuped all your important files.
I have modified my 1800+ Athlon XP to be a mobile one which works very fine now. I could decrease the power consumption of the whole desktop (without monitor and audio speakers) from 81W to 60,3W which is about 25% less. I used athcool (which decreases the power consumption to 62,3W) and modified the powernow-k7 driver to support my desktop platform and modified mobile Athlons. So here are my result:
athcool mult=3x mult=11,5
ON 60,3W 62,3W
OFF 65,7W 81W
Even with athcool ON the cpu fan stops because there is no need of it
and the CPU stays very "cool"
By the way under Windows XP I got no better results.
What I still miss under Linux is the possibility to change the FSB online.
The efforts described in this post may go too far for some people, but I think I have answered a lot of questions in this thread and gave some useful hints. If somebody is interested in the modified powernow-k7 driver then drop a post here. I will reply. But I have to say that the modification is a very cheap hack.
So
1) I would have to spend some time to make the hack better and more flexible
2) You should have some experiences in driver programming
Cheers, Martin
-
THanks
Thanks Martin this helps a ton. Thanks again!
Steve
Similar Threads
-
By thaumielx72 in forum MS Windows & New to Linux
Replies: 4
Last Post: 11-24-2005, 05:23 PM
-
By Tion in forum Hardware & Booting
Replies: 1
Last Post: 04-03-2005, 08:50 PM
-
By maurovik in forum Laptops
Replies: 0
Last Post: 09-03-2004, 08:22 AM
-
By jazzback in forum Customising & Remastering
Replies: 0
Last Post: 06-01-2004, 12:52 AM
-
By A. Jorge Garcia in forum Hdd Install / Debian / Apt
Replies: 2
Last Post: 11-02-2003, 09:43 PM
Posting Permissions
- You may not post new threads
- You may not post replies
- You may not post attachments
- You may not edit your posts
-
Forum Rules
![Vintage Computer, Memorex Storage Unit For Main Frame Computer 1986, Movie Prop picture](/store/img/g/O4EAAOSwQgJisRdE/s-l225/Vintage-Computer-Memorex-Storage-Unit-For-Main-Fra.jpg)
Vintage Computer, Memorex Storage Unit For Main Frame Computer 1986, Movie Prop
$995.00
![Vintage IBM System 370 Mainframe MST Backplane populated with 16 SLT/MST cards picture](/store/img/g/JCIAAOSwQ99mhgGR/s-l225/Vintage-IBM-System-370-Mainframe-MST-Backplane-pop.jpg)
Vintage IBM System 370 Mainframe MST Backplane populated with 16 SLT/MST cards
$299.95
![1 x NOS Vintage Burrougs 4 Tube Mainframe Nixie Assembly - P/N BEZ-59-4 picture](/store/img/g/f~QAAOSw605mgeel/s-l225/1-x-NOS-Vintage-Burrougs-4-Tube-Mainframe-Nixie-As.jpg)
1 x NOS Vintage Burrougs 4 Tube Mainframe Nixie Assembly - P/N BEZ-59-4
$50.00
![10 VINTAGE MAINFRAME COMPUTER PUNCH CARDS. IBM 80-column University of Iowa picture](/store/img/g/aFcAAOSwuB1gNhpB/s-l225/10-VINTAGE-MAINFRAME-COMPUTER-PUNCH-CARDS-IBM-80-c.jpg)
10 VINTAGE MAINFRAME COMPUTER PUNCH CARDS. IBM 80-column University of Iowa
$9.95
![IBM FRU26F7630 3390 DASD Hard Drive 10.8” from Vintage Mainframe picture](/store/img/g/lBkAAOSwE2dmYlgV/s-l225/IBM-FRU26F7630-3390-DASD-Hard-Drive-10-8-from-Vint.jpg)
IBM FRU26F7630 3390 DASD Hard Drive 10.8” from Vintage Mainframe
$249.99
![IBM mainframe emulation software, OS/360 DOS/360 VM/370 picture](/store/img/g/TlEAAOSwJoxcjjmS/s-l225/IBM-mainframe-emulation-software-OS-360-DOS-360-VM.jpg)
IBM mainframe emulation software, OS/360 DOS/360 VM/370
$12.50
![Vintage Hewlett Packard HP 2100A Microprogrammable Computer System Mainframe picture](/store/img/g/qjQAAOSw~Dhk0rov/s-l225/Vintage-Hewlett-Packard-HP-2100A-Microprogrammable.jpg)
Vintage Hewlett Packard HP 2100A Microprogrammable Computer System Mainframe
$999.99
![Vintage Computer Punch Plug Board Mainframe Panels & Wiring Harness picture](/store/img/g/buQAAOSwRdNmaOVv/s-l225/Vintage-Computer-Punch-Plug-Board-Mainframe-Panels.jpg)
Vintage Computer Punch Plug Board Mainframe Panels & Wiring Harness
$40.00
![Lotus Works Vintage Software 3.5in Disks Original Seal 1990 Mainframe Collection picture](/store/img/g/sAIAAOSwl1VlRTR9/s-l225/Lotus-Works-Vintage-Software-3-5in-Disks-Original-.jpg)
Lotus Works Vintage Software 3.5in Disks Original Seal 1990 Mainframe Collection
$335.99
![Xargon 1 Beyond Reality RARE Game Floppy 3.5” Floppy Mainframe Collection picture](/store/img/g/CoYAAOSw5d1kKux9/s-l225/Xargon-1-Beyond-Reality-RARE-Game-Floppy-3-5-Flopp.jpg)
Xargon 1 Beyond Reality RARE Game Floppy 3.5” Floppy Mainframe Collection
$299.99