NotebookForums.com › Forums › General Notebook Discussions › Notebook Guides › Simple Undervolting Tutorial - Pentium M Dothan
New Posts  All Forums:Forum Nav:

Simple Undervolting Tutorial - Pentium M Dothan - Page 48

post #941 of 1202
11/6/05 at 11:13pm
As I described, I applied AS5 recently. I did take apart laptop to do that and checked it for dust buildup. After about a year of usage there was negligible amount of dust in it (only a little in out of reach corners), which tells me that air flow is pretty good in this TravelMate model. The temperature raise was due to now proper heat removal from video chip (I do have it full power rather than balanced on AC).

Just for reference, I have a mini-desktop (AOPEN board in ARIA case) running Pentium M processor (the motherboard is built on 855 chipset). With pretty good airflow and cooling, it never gets to anything lower than 37-38.

27 degrees means CPU should feel cool to touch....

I can see that 9300 has separate cooling solutions for CPU and video, two fans. Also, southbridge is on a separate heatsink. That explains lower temperatures registered for just CPU...
Reply
Reply
post #942 of 1202
11/8/05 at 2:48am
whats are good

Minimal Speed:
Maximum CPU temperature
Maximum CPU Fan Speed
Maximum CPU temperature
Maximum CPU Fan Speed

Maximal Speed:
Maximum CPU temperature
Maximum CPU Fan Speed
Maximum CPU temperature
Maximum CPU Fan Speed

for i700M.. 1.7 GHZ, 1 GB RAM, Fujitsu 80GB 5400rpm..?
Reply
Reply
post #943 of 1202
11/8/05 at 7:28am
Update 11/10:I've experienced a significant drop in temps all around, so ill share~
1st of all I live in south florida, with an ambiet room temp between 80-88 farenheit.
Woken up from standby, Im recording temps of:
CPU-29c
GPU-38c
Dimm/North Bridge:31c
HD-38c(becouse of standby im assuming, but I have recorded a low of 28c during idle

I quite impressed by these #'s, its nice to have the control and have your machine running a little cooler

Great guide/easy to follow
cheers
Reply
Reply
post #944 of 1202
11/9/05 at 5:18pm
hmmmmm i wonder what the true idle and max temps registered truly are for the xps aand the 9300.
Reply
Reply
post #945 of 1202
11/12/05 at 3:47am
Thanks! Great guide to things I didnt even think I needed.
Reply
Reply
post #946 of 1202
11/14/05 at 9:14am
I've read the first 29 pages of this thread and I don't remember anyone who has undervolted a 2.13GHz P-M.

I would like to know if someone has done it and what are the min and max values you used. Is it worth it??? 'Cause I've read that in higher clock processors, the less you can undervolt.

Edit:

Ok, I've just found one, but still I would like to know your opinion, is it worth it???
Reply
Reply
post #947 of 1202
11/15/05 at 3:59pm
Can someone tell me what power scheme i should be utilizing under windows XP sp2? i can't remember reading if its ALWAYS ON or OFFICE/HOME DESKTOP... and 64 pages is too much to read...
Reply
Reply
post #948 of 1202
11/15/05 at 7:05pm
Quote:
Originally Posted by jgaeta
Can someone tell me what power scheme i should be utilizing under windows XP sp2? i can't remember reading if its ALWAYS ON or OFFICE/HOME DESKTOP... and 64 pages is too much to read...
ALWAYS ON, then set your CHC or RMClock settings.
Reply
Reply
post #949 of 1202
11/16/05 at 2:24am
Quote:
Originally Posted by MrMsyvc
ALWAYS ON, then set your CHC or RMClock settings.
What's your reasoning? I'm just curious.

Basically any Pentium M processor can be undervolted, but I stress that you test and find your own values to make sure you have a stable system.
Reply
Reply
post #950 of 1202
11/16/05 at 11:24am
Hi folks,

I am curious:

Is it possible that a lower voltage results in a pixel defect?

I used the Notebook hardware control and set up a very slightly reduced voltage, after restarting the notebook, the screen had one dark pixel, hard to notice but it's there.

I use a Toshiba Qosmio g20 with double backlight Display. Is it possible that this is somehow connected or just coincidence?
Reply
Reply
post #951 of 1202
11/16/05 at 11:25am
Quote:
Originally Posted by Mr. K6
What's your reasoning? I'm just curious.

Basically any Pentium M processor can be undervolted, but I stress that you test and find your own values to make sure you have a stable system.
I saw it posted in this massive thread at one time, though I can't search on always or always on presently.
Reply
Reply
post #952 of 1202
11/16/05 at 3:22pm
Quote:
Originally Posted by Sunstone
Hi folks,

I am curious:

Is it possible that a lower voltage results in a pixel defect?

I used the Notebook hardware control and set up a very slightly reduced voltage, after restarting the notebook, the screen had one dark pixel, hard to notice but it's there.

I use a Toshiba Qosmio g20 with double backlight Display. Is it possible that this is somehow connected or just coincidence?
I think it has to be a coincidence. I cant think of a way how undervolting would case such an effect. Is it permanent? Have you tried touching the screen or brushing it to see if it'll go away?

Quote:
Originally Posted by MrMsyvc
I saw it posted in this massive thread at one time, though I can't search on always or always on presently.
Ahhh, yah, I just set my time what fits my uses.
Reply
Reply
post #953 of 1202
11/16/05 at 10:26pm
I searched this thread and am still unsure if I can undervolt a Celeron M?

Thanks
Reply
Reply
post #954 of 1202
11/17/05 at 3:15am
Quote:
Originally Posted by shepard97504
I searched this thread and am still unsure if I can undervolt a Celeron M?

Thanks
I think you cant, I read somewhere that Celeron Ms don't have the speedstep technology, sorry.
Reply
Reply
post #955 of 1202
11/17/05 at 3:18pm
Quote:
Originally Posted by Mr. K6
I think it has to be a coincidence. I cant think of a way how undervolting would case such an effect. Is it permanent? Have you tried touching the screen or brushing it to see if it'll go away?
Thanks for all your answers.
Yes I tried all sorts of things with that pixel. I rubbed it softly for nearly 15 minutes, used the Screen sweep software to get rid of stuck pixels without any positive result.
I returned my notebook now, ...maybe to be all secure I won' tweak around with the voltage anymore.
Reply
Reply
post #956 of 1202
11/17/05 at 11:12pm
Would undervolting void the warranty?
Reply
Reply
post #957 of 1202
11/18/05 at 12:30am
Quote:
Originally Posted by HERBOLARYO
Would undervolting void the warranty?
Any changing of hardware settings _could_ void the warranty, so check with your vendor if you're concerned. But undervolting will not permanently damage hardware like overclocking can, if anything it will prolong the life of your system(s). And this method, being software, leaves little room for unrecoverable problems.
Reply
Reply
post #958 of 1202
11/21/05 at 5:45am
is there any sort of software that you can usually to manually turn on/off your fan? now that my cl56 is undervolted, the fan never runs, though i think the rest of the innards still feel kinda warm...
Reply
Reply
post #959 of 1202
11/21/05 at 5:04pm
No it won't void your warranty. Basically the worst thing that happens from undervolting these chips is that they become unstable and BSOD, which is easily fixed with a reboot.

teq, check out I8KFanGUI: http://www.diefer.de/i8kfan/
Test it out and see if it works with your lappy.
Reply
Reply
post #960 of 1202
11/23/05 at 2:54am
Quote:
Originally Posted by Mr. K6
teq, check out I8KFanGUI: http://www.diefer.de/i8kfan/
Test it out and see if it works with your lappy.
i've got a cl56...i guess we'll find out
Reply
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Notebook Guides
NotebookForums.com › Forums › General Notebook Discussions › Notebook Guides › Simple Undervolting Tutorial - Pentium M Dothan