X201 tablet minimum power consumption at idle

X200, X201, X220 (including equivalent tablet models) and X300, X301 series specific matters only.
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IvanAndreevich
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X201 tablet minimum power consumption at idle

#1 Post by IvanAndreevich » Sat Mar 12, 2011 5:10 pm

Hey guys

I can get my X200T down to 5.25W at idle with the X25-M G2 SSD. Putting the same SSD into the X201T (with a 400 nit screen, but turned all the way down) I get a whopping 7W at idle.

This very crappy - X201T is consuming a whopping 33% more! It's using a 32nm chip, so I have no idea why this should be happening.

Is this normal?
Owned Thinkpads: X300 X201T X200,T X61,s,T,T+ X60,s,T,T+ X41 X40 X31 T510 T500 T410 T400 T400s T61,p T60,p T43 T42 T41,p T40 W500 W700 - favorites in bold :)
To do list: X301 X220 X220T X201 X201s X200s X201i T420s T410s T420 T520 W510 W701 and future models :)
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Colonel O'Neill
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Re: X201 tablet minimum power consumption at idle

#2 Post by Colonel O'Neill » Sat Mar 12, 2011 5:50 pm

Could it be that some drivers are mismatched? I'm assuming you're transferring the OS on the SSD as well?
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IvanAndreevich
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Re: X201 tablet minimum power consumption at idle

#3 Post by IvanAndreevich » Sat Mar 12, 2011 6:00 pm

Colonel O'Neill wrote:Could it be that some drivers are mismatched? I'm assuming you're transferring the OS on the SSD as well?
Which driver?

Thing is, with the stock hard drive the X201 also has a high power consumption.
Owned Thinkpads: X300 X201T X200,T X61,s,T,T+ X60,s,T,T+ X41 X40 X31 T510 T500 T410 T400 T400s T61,p T60,p T43 T42 T41,p T40 W500 W700 - favorites in bold :)
To do list: X301 X220 X220T X201 X201s X200s X201i T420s T410s T420 T520 W510 W701 and future models :)
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erik
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Re: X201 tablet minimum power consumption at idle

#4 Post by erik » Sun Mar 13, 2011 11:03 am

battery life simply isn't as good on the X201 series due to the processors using more energy.   if you need the absolute best battery life, the X200 series is still the winner.
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IvanAndreevich
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Re: X201 tablet minimum power consumption at idle

#5 Post by IvanAndreevich » Sun Mar 13, 2011 6:34 pm

erik wrote:battery life simply isn't as good on the X201 series due to the processors using more energy.   if you need the absolute best battery life, the X200 series is still the winner.
Hmm looks like it's the CPU then.

http://ark.intel.com/Product.aspx?id=43563 vs http://ark.intel.com/Product.aspx?id=36689

But then again, that includes the graphics core for the Core i5, while the Core 2 has separate consumption for the chipset.

So is that right, can anyone with another X201T confirm that they get a whopping 7W min at idle?
Owned Thinkpads: X300 X201T X200,T X61,s,T,T+ X60,s,T,T+ X41 X40 X31 T510 T500 T410 T400 T400s T61,p T60,p T43 T42 T41,p T40 W500 W700 - favorites in bold :)
To do list: X301 X220 X220T X201 X201s X200s X201i T420s T410s T420 T520 W510 W701 and future models :)
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IvanAndreevich
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Re: X201 tablet minimum power consumption at idle

#6 Post by IvanAndreevich » Mon Mar 14, 2011 8:20 pm

LOL I just saw that for some stupid reason "CPU Deeper Sleep" is disabled in the Maximum Battery Life profile.

Now it's at 5.4W down from 7W with the X25M. This is normal, as I would have expected :)
Owned Thinkpads: X300 X201T X200,T X61,s,T,T+ X60,s,T,T+ X41 X40 X31 T510 T500 T410 T400 T400s T61,p T60,p T43 T42 T41,p T40 W500 W700 - favorites in bold :)
To do list: X301 X220 X220T X201 X201s X200s X201i T420s T410s T420 T520 W510 W701 and future models :)
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