is there any way i can undervolt lower than 0.925v? i'm having temp problems and i'm trying to find any way to reduce it. and how do i enable IDA and DFFS under the "management" tab?
you can see that it's already 47C on idle, after the lowest possible undervolt, with the fan spinning at about medium. do these temps seem high? my relevant hardware is with a T6500 processor and 4500mdh graphics in a HP dv3t, and this is not even with the dedicated nvidia graphics.
is there any other way to lower my temps and fan noise? i'm thinking about even opening the notebook up to replace the TIM between the CPU and cooler. are there any aftermarket coolers for my notebook?
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WhiteFireDragon Notebook Evangelist
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I would replace your TIM/thermal pad with your own since there is no way the idle temps should be that high. I bet it's dried or loss contact and by replacing it, you can probably get a 5-10 deg drop.
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WhiteFireDragon Notebook Evangelist
ok will do. but how do i get to it? seems like i have to take off the whole bottom cover to get to the CPU/fan right? there's not easy access cover like the memory and HD part.
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You can change unlock the available VID(voltage) by tweaking the Registry for RMClock.
Follow this solution,
1.) Enter regedit(registry editor, click Start button, type in regedit and press enter).
2.) Find [HKEY_CURRENT_USER\Software\RightMark\RMClock] via Regedit.
3.) FInd UnlockVid, its value should be 0. Double click it and set it to 1.
4.) Close the Regedit and restart. -
WhiteFireDragon Notebook Evangelist
thanks for the suggestion darksilver. however, when i tried it, there's no "UnlockVid" like you mentioned:
do i need to update it or do something else? -
Go to your RMClock directory folder(where you extracted your file from rmclock_235_bin.rar).
Find RMClock_Tweaks(registries entries). Double click it and allow changes(apply). -
WhiteFireDragon Notebook Evangelist
thanks for the suggestion again darksilver. it work in letting me select vcore all the way down to 0.7125v, however the voltage reading off CPUz still shows 0.925v as the lowest. i guess the chip is hardlocked to .925v as lowest?
if i changed any of the p-state options or custom p-state, would that help?
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I don't have the knowledge to lower it more than the default locked lowest VID.
Basically, we can't change it though. Unless using other method or software.
You can try PM Moral Hazard. He is very pro on modding DSDT table and CPU stuffs. Here is the link, http://forum.notebookreview.com/showthread.php?p=5398397#post5398397
He helped us a lot. -
Those temps are perfectly fine. 78 Celsius isn't going to hurt the CPU. The T6500 will be fine up to 100 Celsius, according to Intel. And they aren't lying. One, they don't want to risk liability if CPU's are failing at high rates while they're within the specified temperature range (which goes well above 78). Two, I've tested this myself. After dozens of hours of running 90+ temperatures over several months, and reaching up to 98 Celsius at the high point (at least, that I saw my temperature monitoring program record), I've been able to detect no damage whatsoever to my CPU. And the same is probably true for the vast majority of people whose (comparable Intel Core 2) CPU's run at 95 Celsius.
True, high temperatures aren't good for electronics in the long run, but 78 is by no means a dangerously high temperature in either the long or short term. You'd be risking much more and running a much higher chance of damage by trying to manually improve the cooling than you would by leaving it alone. Not to mention voiding any remaining warranty, which you may end up needing.
47 in idle isn't anywhere near too high, either, although idle temperatures aren't nearly as important. I've been running idle temps in the mid-50's for the better part of a year, with no issues. And with a CPU that supports up to 100 Celsius, why worry about a 47 idle temperature?
The methods that do make sense are undervolting (which, taking your CPU down to 64, already takes you far beyond where there should be any worry), a laptop cooler (sorry, I don't know if there are any for the dv3t), and cleaning the vents with compressed air. The latter made a difference of 15-20 degrees Celsius for me (I now hit 81 Celsius without undervolting), although if your notebook is fairly new it might not cause much change. But if you've had it for 6 months or so, it probably will make some difference.
All this isn't to say cooling isn't important - it is. But you aren't in a dangerous zone, and with undervolting, you are in a very safe zone. The only reason you should be concerned is if the fan noise really is an issue - with those temps, I'd say you could use a fan control program to set the fan to not come on at full speed until higher temperatures (perhaps 75C or so), so long as you undervolted most of the time. Then your undervolted temperatures would be similar to the stock ones, due to the fan being on less, but you'd also have a quieter computer. Unfortunately, I can't recommend any particular fan control program for HP (or anyone else besides Dell).
As for IDA, all I can think of is that it might not be enabled in the BIOS. Otherwise, I don't know why it wouldn't be showing up as an option. The same goes for Super Low Frequency Mode (SLFM), which halves the speed of the front side bus (FSB), allowing lower power consumption (and thus better battery life), and speeds as low as 600 MHz (on the T6500). -
Why didn't anyone mention that you could change the lowest vid?!?!? Damn that's a neat trick. Could we include that in the undervolting sticky?? Please?
I've seen alot of people hitting their lowest value at like 8x multiplier..
Or else could you make a thread to tell everyone about it, DarkSilver? Like How-to change loest VID in Rmclock. Unless I'm the only one who didn't know?
RMclock advance settings
Discussion in 'Windows OS and Software' started by WhiteFireDragon, Oct 10, 2009.