Pentium M 780 nhc undervolting

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kfzhu1229
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Pentium M 780 nhc undervolting

#1 Post by kfzhu1229 » Sun Feb 05, 2017 8:55 pm

I am just wondering what undervolting settings have all of you used on Pentium M 780 that works without underclock/freezing?
I have set my 6x setting into 0.988V and 17x (max) setting into 1.228V. Before it has to top to around 94 degrees, now it tops at 80 degrees with no GPU usage and 83-84 with full GPU usage (FireGL V3200)
Also did any of you underclock the GPU as well? FireGL V3200 runs especially hot! The GPU can go up to 95 degrees where it throttles while the CPU remains at 75!
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ajkula66
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Re: Pentium M 780 nhc undervolting

#2 Post by ajkula66 » Sun Feb 05, 2017 11:15 pm

My settings from when I had PM 780, a digit or two might be incorrect, the paper is old and I've just scribbled the values on it:

Multiplier 6 - 0.6

8 - 0.78

9 - 0.812

10 - 0.876

11 - 0.956

12 - 1.004

14 - 1.064

15 - 1.120

16 - 1.2

17 - 1.224

As for the GPU, I've played with some underclocking but was never really all that pleased with the results so I haven't saved any figures.
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Re: Pentium M 780 nhc undervolting

#3 Post by axur-delmeria » Mon Feb 06, 2017 4:25 am

kfzhu1229 wrote:I am just wondering what undervolting settings have all of you used on Pentium M 780 that works without underclock/freezing?
There are no generic/universal undervolting settings. You have to stress-test the CPU every time you lower the voltage.
Usually, you'll be spending an entire day trying to find the lowest stable voltage.
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kfzhu1229
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Re: Pentium M 780 nhc undervolting

#4 Post by kfzhu1229 » Mon Feb 06, 2017 11:02 pm

ajkula66 wrote:My settings from when I had PM 780, a digit or two might be incorrect, the paper is old and I've just scribbled the values on it:
Now I am trying these values. Just to make sure in case you had some incorrect values, I have raised up every voltage you've provided by one option available in the drawer boxes in nhc (except for the 17x one which I have tested before that 1.228V is indeed stable). I am now trying to use this machine on a daily basis with these values and will keep this updated.
axur-delmeria wrote:There are no generic/universal undervolting settings. You have to stress-test the CPU every time you lower the voltage.
Usually, you'll be spending an entire day trying to find the lowest stable voltage.
Yep I know this part. I was just asking for some values for me to start off with to save me some hassle.
Patience, boys. All good things to those who wait. – Mother Gothel (Tangled)
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T23 PIII 1.13ghz 1gb W7
2xT43 14.1" 2.26 SXGA+ 2gb 1*fp W10
T530i 15.6" i7 16gb fp W10
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kfzhu1229
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Re: Pentium M 780 nhc undervolting

#5 Post by kfzhu1229 » Thu Feb 09, 2017 6:38 pm

So far it is working great on me!
I used the following settings (based on ajkula66's - thanks for that recommendation):
M V
6x 0.7V
8x 0.796V
9x 0.828V
10x 0.892V
11x 0.972V
14x 1.084V
15x 1.116V
17x 1.228V
Patience, boys. All good things to those who wait. – Mother Gothel (Tangled)
_________________________________
T23 PIII 1.13ghz 1gb W7
2xT43 14.1" 2.26 SXGA+ 2gb 1*fp W10
T530i 15.6" i7 16gb fp W10
Flexview UXGA:
A30p PIII 1.2 1gb W7 (IDTech)
T43p 2.26 2gb fp W10

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