Managing Pentium-M Speed/Voltage with software (temp sticky)

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nirvana0001 · #61 Post by **nirvana0001** » Wed Jun 15, 2005 12:29 am

mk:@MSITStore:C:\Program%20Files\Centrino%20HC\Centrino_HC_Help.chm::/Voltage_Sonoma.htm
you got to check this out before you do anything

Scorpiontico · #62 Post by **Scorpiontico** » Wed Jun 15, 2005 1:06 pm

are you sure this are the "lowest" settings you got to run without errors for your 2.13ghz sonoma cpu?

again, how should i do tests on prime95, by the blend, small or large ffts setting?

thanks

nirvana0001 wrote:Here are my final result for sonoma 770 2.13ghz

6x - 0.700v
8x - 0.748v
9x - 0.780v
10x - 0.828v
11x - 0.876v
12x - 0.908v
14x - 1.004v
16x - 1.116v

I ran each multiplier on Prime95 at least 2 hours without any error. Hopefully they are work for you too.

nirvana0001 · #63 Post by **nirvana0001** » Wed Jun 15, 2005 6:03 pm

I used large fft for mine

Aristotle11 · #64 Post by **Aristotle11** » Thu Jun 16, 2005 10:04 pm

Yes, large fft is best since it stresses out the CPU the most.

I wish I had the 533 bus instead of the 400 bus, since its a bottleneck. A bigger bottleneck is the hard drive... I can't wait nutil those notebook flash drives come out. They use less than half the power and have twice the speed!

kaplanfx · #65 Post by **kaplanfx** » Thu Jun 16, 2005 10:31 pm

Aristotle11 wrote:A bigger bottleneck is the hard drive... I can't wait nutil those notebook flash drives come out. They use less than half the power and have twice the speed!

Which hard drive? I have the hitachi 7200 60GB and the performance is decent even compared to my desktop.

-kaplanfx

nirvana0001 · #66 Post by **nirvana0001** » Thu Jun 16, 2005 10:45 pm

Aristotle11 wrote:A bigger bottleneck is the hard drive... I can't wait nutil those notebook flash drives come out. They use less than half the power and have twice the speed!

How about S-ATA hard drive??

kaplanfx · #67 Post by **kaplanfx** » Thu Jun 16, 2005 10:54 pm

Currently I believe the limits are part of the pysical drive itself. Current hard drives cannot even max out an ATA133 bus, so the additional speeds offered by SATA drives are not taken advantage of by the improved bus speeds.

-kaplanfx

Scorpiontico · #68 Post by **Scorpiontico** » Thu Jun 16, 2005 11:06 pm

kaplanfx wrote:Currently I believe the limits are part of the pysical drive itself. Current hard drives cannot even max out an ATA133 bus, so the additional speeds offered by SATA drives are not taken advantage of by the improved bus speeds.

-kaplanfx

im sorry but whos or whats limits? is the hard drive or the motherboard limiting transfer speeds?

my sales rep told me t43s dont have sata capabilities but ata133 or something like that.

UCI2CI · #69 Post by **UCI2CI** » Fri Jun 17, 2005 4:11 am

yes, SATA is not available in thinkpads as of yet. they run the same old PATA. Real world performace between the two interfaces is small, as kaplanfx mentioned. If a notebook hard drive could max out an ATA133 interface, you would be a VERY happy customer. hard drives are pretty much the slowest component in your computer; they will always be a bottle neck. the feature is in solid state storage.

back to the discussion at hand, here are the voltage setting im running at:

2ghz Dothan, using RMclock for voltage control, running halt commands at idle.

6x @ .7 (1 day Prime95 tested)
20 @ 1.116 (4 days of Prime95)

For those of your using CHC, give rmclock a try also. I tried both, but rmclock carries less bagage and has a more straightforward design.

Aristotle11 · #70 Post by **Aristotle11** » Fri Jun 17, 2005 1:48 pm

UCI2CI,

I had been using RMclock before I started using CHC. I use CHC for the following reasons:

1. CHC updates more often, which hopefully correlates to improvement (this is the least important of my reasons, since regular updates may not correlate to quality, as is the case with Microsoft Windows)

2. CHC, unlike RMclock, allows you to set all the voltages for all the clock speeds from 6x to 17x. RMclock only allows you to set the high and low voltage.

3. CHC, unlike RMclock, has built in underclocking support for my ATI video card. RMclock requires something like ATItool to run in addition to it. With ATItool, you can get it to set the clock speeds at startup and then unload the program to save RAM, but even then RMclock takes up more RAM...

4. CHC takes up less RAM when running in the background (varies from 1.6 to 2 MB instead of RMclock's consistent 3.6MB).

5. CHC has custom dynamic switching (maybe RMclock does the same thing under "On demand clock modification," which seemed to slow down my computer too much).

On the other hand, RMclock has the HLT command built in, but it doesn't seem to have any effect (according to the RMclock forum, it seems to increase temps, actually). I cannot find the HLT command in CHC, but that doesn't seem important.

Also, RMclock hass those cool graphs under "Monitoring."

I would go back to RMclock if I thought there were any real advantages.

Best,
Aris

Aristotle11 · #71 Post by **Aristotle11** » Fri Jun 17, 2005 1:50 pm

I also have the 60GB hitachi 7200, but it is still a bottleneck.

kaplanfx wrote:
Aristotle11 wrote:A bigger bottleneck is the hard drive... I can't wait nutil those notebook flash drives come out. They use less than half the power and have twice the speed!
Which hard drive? I have the hitachi 7200 60GB and the performance is decent even compared to my desktop.

-kaplanfx

WozniakMac · #72 Post by **WozniakMac** » Sun Jun 19, 2005 6:00 pm

I am looking at what you guys are saying, and I am a bit confused at why my temps are so high. I have Mozilla Firefox running, as well as CHC, but that's all, and my temp is 56 Celsius.

My settings are:

What should I change these to to make it run cooler. Thank you.

Edited by Moderator: Links, not images, without a warning in the subject line for dialup users.

sugo · #73 Post by **sugo** » Sun Jun 19, 2005 6:31 pm

WozniakMac, you have your cpu maxed out all the time ...

In control panel power settings, change Home/Office/Always On to Portable/Laptop.

Unless you did it for good reason, on Graphics tab in CHC, uncheck Enable ATI overclock.

You should be able to knock down the temperature to below 47'C. You can then play with undervolting.

WozniakMac · #74 Post by **WozniakMac** » Sun Jun 19, 2005 9:35 pm

Changed the settings on my 1.8 Dothan.

6x - 0.700 @ 43 Load
18x - 1.132 @ 51 Load

These are preliminary settings that I will test tonight, and see how Prime95 tests out.

apoll0 · #75 Post by **apoll0** » Sun Jun 19, 2005 9:37 pm

Does anyone know what the "Acoustic Management" and "Advance Power Management" options under Hard Disk does? I don't quite understand of the options available.

WozniakMac · #76 Post by **WozniakMac** » Sun Jun 19, 2005 9:40 pm

I assume Acoustic Management is the noise control for the hard drive so it's not very loud during use. The other, I don't know.

Scorpiontico · #77 Post by **Scorpiontico** » Mon Jun 20, 2005 3:04 am

please correct me if im wrong but right centrino hardware control does not conflict with intel speedstep blabla?

thanks.

ps:in a t43, should speedstep be unabled? how to (just in case)?

CaptainMorgan · #78 Post by **CaptainMorgan** » Tue Jun 21, 2005 1:33 am

Wow, great thread. Bill make this a permanent sticky. Very useful information.

Glad I found it, thanks to the folks here I downloaded CHC, dropped the 6x voltage to .700, dropped 17 processes for a total 39, and temp dropped to 41c down from a usual 48-49; all this also results in a signficant drop in fan noise! It's almost perfectly quiet! - it was at a steady hum before.

A big thanks!

JHaislet · #79 Post by **JHaislet** » Tue Jun 21, 2005 1:49 am

Dude, I just checked out your "defect" pics! What's up with that sky-blue line? Does it just do that when loading the OS or is it now persistent even after windows/linux completes booting? Either way, that really stinks.

If it's any consulation, I ordered mine 6/15 and minutes ago the shipdate when from 7/12 to 7/8. Another rep today when I called back finally gave me a straight answer & said there's a good possibility it could ship out this week. Hopefully it won't take more than a week or two to get another 266872U in your hands!

CaptainMorgan · #80 Post by **CaptainMorgan** » Tue Jun 21, 2005 1:56 am

Omg, I hate it.. everything was fine with this baby. Then It just shot out. It is consistent, never wavering, always there; startup or standard run time.

Check out: http://forum.thinkpads.com/viewtopic.php?t=12454

Totally stinks, happened earlier today. Now Ill be out a laptop for a good 2-3 weeks. Ill have to use my wife's, 15", for the time being.

Ill be getting things rolling tomorrow and can't wait to hear what they say.

JHaislet · #81 Post by **JHaislet** » Tue Jun 21, 2005 2:40 am

It would probably be best (if you can stand the wait) to return that one and place a new order for another 266872U. OR if you want to save a couple hundred and get the larger battery, order a 2687DSU. It's an express model that has the EXACT same spec's as yours, except comes with a 9-cell.

Just a though, b/c you'll probably get a refubed part if you send it off for repair.

roast · #82 Post by **roast** » Tue Jun 21, 2005 10:24 am

JujitsuFreak wrote: Glad I found it, thanks to the folks here I downloaded CHC, dropped the 6x voltage to .700, dropped 17 processes for a total 39, and temp dropped to 41c down from a usual 48-49; all this also results in a signficant drop in fan noise! It's almost perfectly quiet! - it was at a steady hum before.

Um.. I'd like to know how in the world you got your T43 from a steady hum to silence. I've cut down my processes to ~20 at startup, and the temperature is still 44-50 idle, with the fan never stopping. I too have undervolted 6x/800@0.700V, but never got to your temperature of 41C. It's unfortunate that your screen ended up messing up.

Photios · #83 Post by **Photios** » Wed Jun 22, 2005 9:27 pm

You know, it's interesting. I'm now running CHC, and I'm using the exact same numbers that nirvana0001 posted for his T43p, as my model is close to his, and we certainly have the same cpu. My temps have dropped from 60-65 all the way down to 42-44. However, my fan is still running all the time - unless - my computer is in standby mode, and I wake it up, and then it will take a while for the fan to come on, as the TP gets up to temperature. I woke it up about 10 minutes ago, and the fan has not yet come on yet, and I'm at 40 degrees, oops, now 41. Still no fan. Hmmm... I just looked down and noticed that I'm on battery power too, and that chc is set to max battery. Perhaps this is why I don't hear the fan right now. I'm not at 42 degrees, and no fan.

Hmmm... I may just have to go on battery all the time. It seems to me when I plug in the ac adapter, the fan comes on. I'll have to run some more tests.

Photios · #84 Post by **Photios** » Wed Jun 22, 2005 9:30 pm

Well, I just confirmed it; the fan comes on at 43 degrees, which is where I'm at. It just dropped to 42, but the fan continues...

nirvana0001 · #85 Post by **nirvana0001** » Thu Jun 23, 2005 2:22 am

my tp got 33C when i wake it up. and the room temperature approximately 75F

Photios · #86 Post by **Photios** » Thu Jun 23, 2005 9:25 am

Nirvana,

Does your fan still run most of the time? I'm at 40 degress right now, and my fan is just churning away... I'd say that my fan is still on almost all the time, though my temp is almost never above 45 degrees, usually 43 or lower.

nirvana0001 · #87 Post by **nirvana0001** » Thu Jun 23, 2005 3:27 pm

my fan is always on too. and it would stop spinning below 41C

sugo · #88 Post by **sugo** » Thu Jun 23, 2005 5:34 pm

Photios wrote:Well, I just confirmed it; the fan comes on at 43 degrees, which is where I'm at. It just dropped to 42, but the fan continues...

The stopping temperature is usually a few degrees below the starting temperature. Otherwise the fan will go on and off every few seconds.

On my T42, fan starts at 42/43'C and stops at 38/39'C.

yout4 · #89 Post by **yout4** » Fri Jun 24, 2005 3:38 am

I am trying to decide between the T42 and T43, and I was wondering whether any T42 users been able to get the fan to turn off completely using CHC. I am currently using a T41 (undervolted) and even with the CPU temp around 37 C, the fan is running constantly.

Also, for both T42 and T43 owners, what has been the best battery you were able to get with minimum voltage and low brightness?

Finally, I would like to ask if it is possible using CHC to cool the T43 enough to run consistently on the lowest fan speed (around the same noise as T41/T42).

Thanks.

Tan Mann · #90 Post by **Tan Mann** » Fri Jun 24, 2005 4:35 pm

Photios wrote:Nirvana,

Does your fan still run most of the time? I'm at 40 degress right now, and my fan is just churning away... I'd say that my fan is still on almost all the time, though my temp is almost never above 45 degrees, usually 43 or lower.

My freaking fan is ALWAYS on now, even with CHC set pretty aggressively and my CPU temp hangin' around 36-36c on my T42-2379DXU and HDD Sitting @ 35 C...with VERY SLOW CPU Settings (LT 600Mhz)...

You know, my fan used to be OFF at these setting when I am simply beating away at the keyboard...but I went ahead and did the BIOS Update...

I bet if I revert to my previous BIOS, all will be good...Frig, for a hack to change the thresholds when the Fan kicks in...now that would a nice thing!

Tan

Managing Pentium-M Speed/Voltage with software (temp sticky)

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