great job. You have been a great help to many new users im sure!!!
post #21 of 38
2/23/05 at 8:25am
|The ASUS V6000V is an ultra slim and super light 15-inch notebook measuring at 2.5cm in thinness. It is characterised by a refined and elegant design that represents the most comprehensive solution for professionals who
demand functionality and cutting-edge performance .
|This thread is intended to be a simple tutorial for undervolting your Pentium M (Dothan) laptop. Undervolting the CPU reduces power consumption, thus allowing your laptop to run cooler and increasing battery life. I was able to adjust the minimum voltage of my Pentium M 760 (Dell Latitude D810) from 0.988V to 0.700V and the maximum voltage from 1.308V to 1.068V. Your mileage may vary!
1.) Download RightMark CPU Clock Utility (RMClock) from http://cpu.rightmark.org/ and Prime95 from http://www.mersenne.org/freesoft.htm
2.) Unzip the programs to the directories of your choice (I use /program files/rmclock/ and /program files/prime95/).
3.) Launche Prime95.exe, download and begin calculations, minimize the window (you should see a red icon in your system tray), then launch RMClock.exe.
4.) Click on the "General" tab and note your default voltages (mine are "Startup" and "Minimal" at 0.988V and "Maximal" at 1.308V).
5.) Click on the "Management" tab.
6.) Select the "Use P-State Transitions (PST)" box. Intel 855 and 915 chipset users may need to select "Run HLT command when the system is idle" (I did). Do not select or modify any other options.
7.) Make sure "Minimal FID" is at the lowest number (6.0x in my case) and "Maximal FID" is at the highest number (15.0x in my case).
8.) Change "Profile" to "Maximal" and click the apply button.
9.) Now click on the "General" tab and ensure that "Actual Clock" is your maximum processor operating speed (1995.16 Mhz in my case). Return to the "Management" tab.
10.) Decrease the "Maximal VID" (1.308V in my case) by one stepping and click the apply button.
11.) Ensure that Prime95 is still running without any errors. An error will look something like this: "FATAL ERROR: Rounding was 0.5, expected less than 0.4" or "Hardware failure detected, consult stress.txt."
12.) If you do not encounter any errors after a few minutes, return to RMClock and decrease the "Maximal VID" by another stepping.
13.) Continue decreasing the "Maximal VID" and checking Prime95 until you encounter an error. Make sure to press the apply button with each change.
14.) Once you encounter an error, raise the "Maximal VID" by one stepping.
15.) Then allow Prime95 to run for a few hours. If you receive an error, increase the "Maximal VID" by another stepping and run Prime95 for a few hours until you do not encounter any errors.
16.) If Prime95 runs for a few hours without encountering any errors, you have determined the lowest possible CPU voltage at maximum processor speed (1.068V in my case). Write this number down!
17.) Now change "Profile" to "Minimal." Repeat steps 9-15, except for "Minimal VID" instead of "Maximal VID."
18.) If Prime95 runs for a few hours without encountering any errors, you have determined the lowest possible CPU voltage at minimum processor speed (0.700V in my case). Write this number down!
19.) Change "Profile" to "Automatic Management" and select your recorded "Minimal VID" and "Maximal VID" values (0.700V minimal and 1.068V maximal in my case). Press the apply button.
20.) Select the "Advanced" tab and select "Apply these settings at program startup" under the "Misc Settings" area. Do not change any of the other settings. Click the apply button.
21.) Right click the RMClock system tray icon and select "Run Automatically at Startup" and "Start Minimized to Tray." You also may want to unselect "Force Minimal Profile on Batteries."
I will post my system improvements (battery life, CPU temperature, fan speed, etc) soon. People have reported amazing results, such as their CPU fans no longer activating at 0.700V, significant battery life improvement, and a noticable decrease in CPU and laptop temperature. Please let me know if this works for you and the results you are able to acheive. Good luck!
EDIT: Here is my data thus far (all under 100% CPU load for 5 minutes):
Maximum CPU temperature @ 0.700V - 100 F
Maximum CPU Fan Speed @ 0.700V - 2399 RPM (variable on/off)
Maximum CPU temperature @ 0.988V - 107 F
Maximum CPU Fan Speed @ 0.988V - 2410 RPM (always on)
Maximum CPU temperature @ 1.068V - 114 F
Maximum CPU Fan Speed @ 1.068V - 2422 RPM (always on)
Maximum CPU temperature @ 1.308V - 132 F
Maximum CPU Fan Speed @ 1.308V - 2944 RPM (always on)
Originally Posted by smilepak
Asus W3V (Sonoma Version)
Intel Pentium-M 750 Dothan (1.86Ghz; 533mhz w/ 2mb Cache)
14" WXGA (1280 x 768) Color Shine (glaretype) LCD Panel
Asus W3V w/ Intel 915PM Chipset
512MB DDR2 533 (1 x 512) - up to 2GB supported
Hitachi 60GB; 5400RPM
ATI Mobility Radeon x600 PCI-Express Graphics w/ 64MB VRAM
Built-In Intel PRO/Wireless 2915 A/B/G miniPCI
8x Dual Layer DVD Burner
8-Cell Li-Ion; Approximately 4-5 hours of normal use life
(the US spec will come with the larger battery, standard)
Windows XP Pro w/ SP2
13" (length) x 9.7" (width) x 1.18"-1.28" (height) /
about 4.6 LBS (with 8 cell and travelers drawer)
2 year global parts and labor through ASUS
Note: US version comes standard with 8cell batter compared with 4cells in other countries.
User Reviews & Info:
Where To Buy:
Originally Posted by Ransomed1
I see both Dothan AND Sonoma listed for this processor. Could you please clarify? I believe it's actually a Sonoma (as listed in your subject line), but in the product info you have "Dothan" (which I believe is directly from the website), which I think is wrong. Just askin'.