X62 problems, quirks, and fixes

Old(er) Thinkpads with New(er) Intestines: X62 / T50 / T70 / etc.
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bitonic
Posts: 13
Joined: Fri Nov 10, 2017 11:54 am
Location: Rome, Italy

Re: X62 problems, quirks, and fixes

#151 Post by bitonic » Tue Nov 21, 2017 3:41 am

vavet,

I've added a comment explaining the values: https://github.com/bitonic/x62-fancontr ... rol.c#L155 . I still don't really know what they _mean_, but that's the effect they have on the fan speed.

Given the PWM terminology one would think that the fan speed regulates the pulse width modulation frequency, but there are a few jumps in the 0-255 range and even in the range where the change is smooth it does not seem to change the fan speed linearly

bitonic
Posts: 13
Joined: Fri Nov 10, 2017 11:54 am
Location: Rome, Italy

Re: X62 problems, quirks, and fixes

#152 Post by bitonic » Tue Nov 21, 2017 4:01 am

now onto the next problem: the fan emits a very high frequency vibration at low speeds (which i'm hearing for the first time since it was always at high speed before)

wujstefan
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Joined: Fri Mar 04, 2011 8:38 am
Location: Tarnow, Poland

Re: X62 problems, quirks, and fixes

#153 Post by wujstefan » Wed Dec 13, 2017 11:18 am

Other than that:

Battery charge and discharge times are a bit... say, they go mad sometimes. I've installed BatteryBar and it worked just fine with both charging and sicharging times... for two days :) then I needed to reinstall it to make sure what is the exact working time and how long would the system stay alive, and still it jumps every 5 seconds to different value, ranging from 3,5hrs to 8hrs on fresh battery (update every 5 seconds).

Is there any reasonable way to create own powerplan on those systems in W7? I guess you can't change voltage on i5 without changing the clock, but a good utility would be nice in here.
Dailies:
T601f, X61sfL - work
HP Elitebook 8740w - multimedia
R61f - wife
R61f - kids
Collectibles:
T43, Z60t, G41, R30, R50e
Under construction:
A31, 600X, R52p, T22, A22m, R40, T30

NonesensE
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Posts: 94
Joined: Mon May 29, 2017 6:28 am
Location: GF/BS/OHA, Germany

Re: X62 problems, quirks, and fixes

#154 Post by NonesensE » Wed Dec 13, 2017 3:21 pm

wujstefan wrote:
Wed Dec 13, 2017 11:18 am
I guess you can't change voltage on i5 without changing the clock, but a good utility would be nice in here.
You can set a voltage offset (read: undervolt) the X62 with Intel XTU or ThrottleStop (I recommend the latter: Less processor usage, built-in C-state check window which you need anyway for configuring the X62 to save power).
Sometimes coming over from the German forum...
X62s 3rd batch, [s]T61[/s] T70 14" 4:3 1st batch

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