Power Consumption for X31/2

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gunston · #1 Post by **gunston** » Wed Sep 12, 2007 8:00 am

what is your power consumption for your X31/2?
and how long does the battery last?

qviri · #2 Post by **qviri** » Wed Sep 12, 2007 9:51 am

The lowest I have achieved so far is 8.5 watts in idle, with undervolting, brightness turned down, wireless on. Turning the brightness up adds about 2 watts, turning it off altogether gets rid of about 2-3 watts. I have yet to turn off some things like the infrared port, the modem, the parallel port, etc - that could bring it down to a an 8 watt idle. Aggresive settings for hard drive spin-down can also help. My battery life is a little under three hours on an old battery down to 65% of original capacity.

gunston · #3 Post by **gunston** » Wed Sep 12, 2007 6:53 pm

Heard that the bottom of the chassis get hot easily?
is it true?

qviri · #4 Post by **qviri** » Wed Sep 12, 2007 7:15 pm

IME:

It is what I would classify as unusually warm, unless you are undervolting. Too warm to hold on a naked lap comfortably; if wearing pants it's acceptable.

gunston · #5 Post by **gunston** » Thu Sep 13, 2007 12:38 am

qviri,
you guys don't undervolt as to increase the battery lasting hrs?
normally, i used RM clock utility for my T43.

would like to get a X32. what do you think?

The Spirit of X21 · #6 Post by **The Spirit of X21** » Thu Sep 13, 2007 12:44 am

Undervolting the CPU can extend your battery life, but it also has the effect of lowering the CPU temperature - helpful to folks who find the X3 machines a bit too warm for comfort.

The X32 is a nice machine, but it has the same heat issues you will find present in any other X3 series machine. Also, given the fact that it is essentially an X31 with a higher frequency CPU, the X31 offers much more value for your money.

gunston · #7 Post by **gunston** » Thu Sep 13, 2007 12:48 am

The Spirit of X21 wrote:Undervolting the CPU can extend your battery life, but it also has the effect of lowering the CPU temperature - helpful to folks who find the X3 machines a bit too warm for comfort.

The X32 is a nice machine, but it has the same heat issues you will find present in any other X3 series machine. Also, given the fact that it is essentially an X31 with a higher frequency CPU, the X31 offers much more value for your money.

thanks for the reply,
well, i would presume the X3 machine is not as hot as T43 right?

qviri · #8 Post by **qviri** » Thu Sep 13, 2007 6:59 am

gunston wrote:qviri,
you guys don't undervolt as to increase the battery lasting hrs?
normally, i used RM clock utility for my T43.

I do, except a) not in Linux because I have been too lazy to figure that out yet, and b) not as much as I'd like because my CPU isn't that great and won't go below 0.820 V stable.

The Spirit of X21 · #9 Post by **The Spirit of X21** » Thu Sep 13, 2007 2:14 pm

gunston wrote: thanks for the reply,
well, i would presume the X3 machine is not as hot as T43 right?

You've got me there, as I have never owned a T43. At the moment, I do have a T40, and between the two I have noticed that the X30 can get warmer on the bottom.

dj2005 · #10 Post by **dj2005** » Fri Sep 14, 2007 9:53 pm

Like previously stated, the X31 gets quite hot when the CPU is not undervolted. Personally, I have my CPU undervolted to .764 (600mhz) and 1.372 (1.6ghz). Unless I'm gaming, the laptop is lukewarm at best so it is definitely tolerable. I'm not sure how it compares to the T series as this is the first laptop I've owned.

Battery life:
My battery is a little over three years old and still has 79% of its charge left. At lowest brightness settings and just browsing the web I get 3:30 hours. Without wifi I get at least an extra thirty minutes (I tested idle time with wifi and idle time without wifi).

Power Consumption for X31/2

Power Consumption for X31/2

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