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Simple Undervolting Tutorial - Pentium M Dothan - Page 40

post #781 of 1202
8/25/05 at 8:51am
RM Clock 1.7 was released on 8/23/05
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post #782 of 1202
8/25/05 at 12:13pm
Glad ya fixed it Loren

Thanks Fusoya, I noticed that as I was writing my laptop tweaking guide. I hope it's not too different, but if it is, I'll check it out and write an update for it.
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post #783 of 1202
8/25/05 at 6:04pm
Ok, another update- I removed the pin mod so now I'm running at 1.7Ghz. I've been running Prime95 at 17X(1.7Ghz) and 1.29V and so far my temp has stayed at 71-73C. It looks like the pin mod was raising my temps about 4-5 degrees. I'll probably leave it at 1.7Ghz for a while and maybe overclock a little bit later on when I can figure out how to get my temps lower.
One last thing though, and this is kind of way out there. Is there any chance undervolting caused the extra heat? I know that's dumb but if I remember correctly, my temps were in the low to mid 70's before the undervolt.
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post #784 of 1202
8/25/05 at 8:26pm
Undervolting severely decreases temps, that's why we do it (well, that and extra battery life ). Here's why I'm wondering what's wrong with your CPU rage. Before I undervolted, I idled (800MHz) at 29C and loaded at 56C. Now that I've undervolted, I idle at 28C and I load at 44C. I got a 12C drop off load temps. Because you got so little drop in your temps, that usually signifies that your heatsink is messed up. You should be seeing at least 5C drops off the load temperature. I'll go do some research on the Asus and see if I can find anything that would cause a problem like this.
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post #785 of 1202
8/26/05 at 1:43am
My computer averages about 52-53C while I play music, AIM, and Firefox. When I wake up and I'm on a battery, I get somewhere in the 40s. I have a 700m which is small so is that why it runs kind of warm? I read i6000 getting like 29 which is something i would like to my laptop to run at. i dont think im doing anything wrong in CHC either.
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post #786 of 1202
8/26/05 at 10:25am
Quote:
Originally Posted by Mr. K6
Because you got so little drop in your temps, that usually signifies that your heatsink is messed up. You should be seeing at least 5C drops off the load temperature. I'll go do some research on the Asus and see if I can find anything that would cause a problem like this.
I think that the z70v runs just a little hotter than a lot of people expect. I have the same machine as Rage, but with a 2.13 GHz. At 1.1 volts, 16x, chugging away on Prime95, it gets up to around 70 degrees -- idle it's about ten degrees cooler. Before undervolting, it was closer to 80/70. Bump those figures each down another 10-12 degrees for 6x.

Here's my question for Rage: when you put it under load and then remove the load, does the temperature drop like a shot? On mine, the temperature drops back to the idle temps within a fraction of a second. I take this as an indication that the heat sink and fan are doing their job just fine, otherwise the temperature would take longer to stabilize as the heat would have to find slower ways to escape the chip.

As I said in another thread, Intel says that the maximum temperature for the Pentium M series is 100 degrees Celsius. If you can't get hotter than the high 70s with Prime 95, you've got plenty of margin for normal use.
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post #787 of 1202
8/26/05 at 12:30pm
PJ- you have my temps pretty much dead on. On battery @ 800mhz(6X), I run in the 50's. At full power(2.26Ghz/17X), I've gotten it down to the 72-74 degree range. But, like you said, as soon as I remove load, the temp drops like a rock into the low 60's to upper 50's. So then, these are pretty average temps for the Z70V? If so, then I'm gonna go ahead and put the pin mod back in .
Right now, I have the pin mod removed and I've gotten my volts at 17X down to 1.164 V and temp has stayed around 64C. Prime ran stable for a couple of hours till I shut it down. I did go to the Arctic Silver web site and it does say it could take up to 200 hours of heating/cooling for the paste to bond and work to its maximum.
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post #788 of 1202
8/26/05 at 1:15pm
Arctic silver shows almost no improvement after the first few heating/cooling cycles (startup/shutdown). However, if the temp is dropping that fast than PJ is dead on: the heatsink is running fine. I guess the Z70V's just run very hot. Thanks for clearing that up
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post #789 of 1202
8/26/05 at 8:06pm
Quote:
Originally Posted by Mr. K6
...Thanks for clearing that up
Yes, I agree. Thanks! Now I can rest a little easier.
I kept seeing all the posts of people with their temps in the 50's and 60's and I was beginning to worry. But most of those laptops were Dell or some other brand. I was wondering what people who had the Z70V were getting.
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post #790 of 1202
8/28/05 at 2:36pm
which program do you guys use to test the temperature decreases and fan speed decreases after undervolting?

thanks
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post #791 of 1202
8/28/05 at 2:58pm
I use CHC to undervolt and it has built in temp monitoring. For fans I just use my ears . I9KFanGUI has fan and temp monitoring, see the thread on it in the Dell 9300/XPS2 section.
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post #792 of 1202
8/28/05 at 4:54pm
My computer averages about 52-53C while I play music, AIM, and Firefox. When I wake up and I'm on a battery, I get somewhere in the 40s. I have a 700m which is small so is that why it runs kind of warm? I read i6000 getting like 29 which is something i would like to my laptop to run at. i dont think im doing anything wrong in CHC either.
I'm hitting high 50's now. Is it b/c I have a 700m?
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post #793 of 1202
8/28/05 at 5:37pm
Taking a look at Dell's online guides, the cooling solution on the 700m doesn't look that bad. The only thing I can say is that maybe your fan turns off at idle because CPU heat out put is so low after undervolting. Essentially, you'd be running passive cooling, and those temps are fantastic for that.
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post #794 of 1202
8/28/05 at 11:03pm
I just bumped into this thread - is the method and steps involved of undervolting still valid and safe which are listed in the the first post or have there been any revisions made? Sorry for asking but I don't really want to go thru 700+ posts.
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post #795 of 1202
8/28/05 at 11:06pm
Quote:
Originally Posted by Mr. K6
Taking a look at Dell's online guides, the cooling solution on the 700m doesn't look that bad. The only thing I can say is that maybe your fan turns off at idle because CPU heat out put is so low after undervolting. Essentially, you'd be running passive cooling, and those temps are fantastic for that.
Yeah, my fans barely ever run. So if the fans were running 24/7, I would get cooler temps?
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post #796 of 1202
8/29/05 at 12:11am
Quote:
Originally Posted by 426Hemi
I just bumped into this thread - is the method and steps involved of undervolting still valid and safe which are listed in the the first post or have there been any revisions made? Sorry for asking but I don't really want to go thru 700+ posts.
I'm not the expert on RM Clock but I run it. Yes, v.1.7 is the latest and the config has changed slightly. THIS post gives updates for v.1.6, which apply to 1.7 also. In the Management tab you only need your MIN and MAX states defined, "as long as" you go into the Modify button on each and check "Auto-adjust intermediate ... VIDs". My states for my 8104 are "P-State 0, 6.0x, 0.700V" and P-State 1, 15.0x, 1.100V. If you don't want to do all the Prime95 tests find some successful examples for your computer within this thread and use those. If they don't work then adjust them, as results may vary even on the same model laptops. I tried CHC (Centrino Hardware Control utility) for awhile but my lappie seemed to run hotter. Good luck.
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post #797 of 1202
8/29/05 at 6:45am
I have been using this for a while, and my temps have decreased so the fans rarely run
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post #798 of 1202
8/29/05 at 11:50am
Quote:
Originally Posted by MrMsyvc
I'm not the expert on RM Clock but I run it. Yes, v.1.7 is the latest and the config has changed slightly. THIS post gives updates for v.1.6, which apply to 1.7 also. In the Management tab you only need your MIN and MAX states defined, "as long as" you go into the Modify button on each and check "Auto-adjust intermediate ... VIDs". My states for my 8104 are "P-State 0, 6.0x, 0.700V" and P-State 1, 15.0x, 1.100V. If you don't want to do all the Prime95 tests find some successful examples for your computer within this thread and use those. If they don't work then adjust them, as results may vary even on the same model laptops. I tried CHC (Centrino Hardware Control utility) for awhile but my lappie seemed to run hotter. Good luck.
Thanks! I'll check it out and start testing!
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post #799 of 1202
8/29/05 at 1:56pm

undervolting

Hi,

I am using CHC and it works greatly.... my idle temp has decreased from 51-52º to 48º, and fully load temp has dropped even more. My fans did not work too much before undervolting, but now my laptop feels much better and cooler and it will never go above 56º any more (before it used to work around 64 under light load -> word processing, surfing and emule). Great thing, undervolting!!!

I know that I could decrease my temp using good thermal paste, but I do not want to open my lappy.... still have the warranty and dont want to void it
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post #800 of 1202
8/29/05 at 6:15pm
That's why undervolting is great for everyone, glad it worked out for you. I did some testing and CHC gives me the same temps as RMClock, but I'd imagine each laptop has the possibility of handling the programs and undervolting differently.
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