Undervolting the Thinkpad X120e

[Metroid_III]

Those are great results! Glad it's worked out for you

As a note, though, since I notice you dual-boot Ubuntu, the undervolt values used by RW-Everything obviously won't carry over to your Ubuntu install. That said, there is a way to apply the lower voltages in Ubuntu as well--I believe it is covered in the SPCR thread I mentioned in my first post (there's someone using Ubuntu on his dm1z in that thread).

Funny you brought that up, yes I went through that thread yesterday and (through a couple hours of figuring things out) have my undervolts in Linux too, where the fans turn off even more often I would hate for anyone to have to do all the digging I did to figure out undervolting the E-350 in Linux, so I've written a draft of a newb friendly guide to undervolting in Linux, applying those undervolts at startup, and applying them on resume from sleep or hibernate. which I can post here if people want

Only one Q: in a new thread or in here?

[MidnightSun]

Funny you brought that up, yes I went through that thread yesterday and (through a couple hours of figuring things out) have my undervolts in Linux too, where the fans turn off even more often I would hate for anyone to have to do all the digging I did to figure out undervolting the E-350 in Linux, so I've written a draft of a newb friendly guide to undervolting in Linux, applying those undervolts at startup, and applying them on resume from sleep or hibernate. which I can post here if people want

Only one Q: in a new thread or in here?

Sounds great, glad that worked out for you! You can create a new thread in this subforum, perhaps "Undervolting the Thinkpad X120e in Linux," and I can link to it in my original posts.

[Metroid_III]

Alright everyone, the thread is up

[frostedflakes]

Just wanted to register and say thanks for this guide, very helpful.

Also figured I'd go ahead and throw my results into the mix as well since I found other users results very helpful when undervolting.

P0: 1600MHz @ 1.175V
P1: 1280MHz @ 1.050V
P2: 800MHz @ 0.825V

Also, does this technique undervolt the GPU portion of the E-350, or does it only affect the CPU portion? If the latter, would it also be possible to undervolt the GPU in this way?

edit: Found a GUI utility that appears to support both CPU and GPU/NB undervolting, it's called BrazosTweaker. Haven't really messed around with it yet, but looks promising.

[Pseudorandom]

Would BrazosTweaker be a better tool than what was used originally for Overclock/Undervolt? It seems like a better user interface than rweverything, but is it more powerful?

Make your AMD Fusion laptop quieter or faster with BrazosTweaker - Liliputing

[johan851]

Would BrazosTweaker be a better tool than what was used originally for Overclock/Undervolt? It seems like a better user interface than rweverything, but is it more powerful?

Make your AMD Fusion laptop quieter or faster with BrazosTweaker - Liliputing

Looks like it has undervolt options for the northbridge, which I assume is the GPU side of things. That could be handy, and people had some trouble getting those settings to 'stick' with rw-everything.

Have you tried it out yet? If anything the interface is MUCH nicer than manually writing to a bunch of registers.

[unrel2k]

Undervolting the northbridge works at least for the s205, but not with the x120e. That's what i from reading the threads in german forums where the author supports his tool.

[johan851]

Undervolting the northbridge works at least for the s205, but not with the x120e. That's what i from reading the threads in german forums where the author supports his tool.

Tested out that tool and saw the same behavior - can't get NB values to stick.

[doshu]

I just wanted to ask about the NB part of Brazostweaker myself... Since I own a Wind U270 and not a x120e, I'll try this out and post the results here.

Btw, here are my CPU undervolt settings :
P0 : 1.125
P1 : 0.975
P2 : 0.7875

I just have to found a way to apply this on my linux partition now^^.

Also, too bad there's no way yet to overclock this netbook, I'm sure I could get very good results with it ...

[johan851]

Also, too bad there's no way yet to overclock this netbook, I'm sure I could get very good results with it ...

Most overclocking results on the E-350 platform are pretty mediocre. I don't think you're missing out on much.