How to Enable Intel Dynamic Acceleration (IDA) on Both Cores of a Core 2 Duo

I've got some more good news for you. Core Temp is using the wrong TJMax. The Q9100 is only 100, not 105 so your reported core temperatures are 5C less than what it is reporting.

Intel® Core?2 Quad Processor Q9100 (12M Cache, 2.26 GHz, 1066 MHz FSB) with SPEC Code(s) SLB5G

You can check the ThrottleStop.INI configuration file to make sure TS is using 100. It should be.

A faster and cooler running CPU. You've got the best of both worlds. Thanks for posting that.

 

Its actually a Q9000 but I think its getting confused at it being at 2.26ghz.

 

It also thinks it's socket M, when it really is socket P.

 

Ooops, I didn't notice the Q9000 to Q9100 transformation.

The Q9000 also has a default TJMax of 100C so either way, Core Temp is wrong and your core temperatures are 5C lower than what it's reporting.

Intel® Core?2 Quad Processor Q9000 (6M Cache, 2.00 GHz, 1066 MHz FSB) with SPEC Code(s) SLGEJ

 

Successfully enabled 11x multiplier on Dell Vostro's T7250.
Can't test it thou, my laptop is at 2% on battery because i forgot my power supply at the university.
Any advice about the settings that should be used in the energy saver mode?
Thanks for the application, 200 mHz gained without breaking a sweat...

 

You have to disable EIST to lock the IDA multiplier on both cores. Once EIST is disabled, you can't adjust the multiplier or VID voltage. Both cores will be locked to that frequency and voltage and that's it. You need to set the VID voltage first, before you enter Dual IDA mode. That's about the only energy savings to be had when using this trick.

 

Uhm, i think i got it.
Thanks.

I already disabled EIST from my bios, should i do something more?

 

Have you lowered your CPU voltage before enabling Dual IDA? That helps. Post a CPU-Z and ThrottleStop screen shot so I can see how it looks.

 

This is my screenshot.
I started a 24H prime 95 test for my laptop at 2.2 ghz but i found it restarted after 20hrs or so.
Max temp reached was 69°C.
Can i consider it stable after 15 or a bit more hrs of solidness?
I don't think i can trust it.

 

Just run intelburntest, takes 10mins and works better.

 

15 hours of Prime is stable enough for me while other users prefer more strenuous tests like IBT or LinX.

LinX - A simple Linpack interface

How stable you need to be depends on what you are using your laptop for. If your game crashes will life come to an end? Probably not. If you are running a nuclear power plant with your laptop and it crashes, will life come to an end? Maybe.

Your CPU-Z screen shot shows that the ThrottleStop VID voltage request of 1.10 volts was ignored. As mentioned above, you have to set your voltage first before disabling EIST or going into Dual IDA mode. VID and FID changes are ignored as soon as EIST is disabled. CPU-Z shows your T7250 running with actual VID set to 1.275 volts which is probably a lot more than what you need to run stable.

 

What should i do then?
Enable EIST once again from bios then setting 1.1V and then disable EIST once again?

 

Ok, now my DUAL IDA mode is working properly but as i disabled the EIST i can't put my laptop on saving mode at 600mhz (100*6) .
Shall i reboot and enable it each time i want to change the working mode?

 

Why not just have Profile 1 as your Dual IDA profile and set up Profile 2 as a low speed power saving profile. You can set Profile 1 to have EIST off and Profile 2, 3 and 4 can be whatever you like with EIST on.

You couldn't do this with early versions of ThrottleStop but I recently added this feature. Try downloading the latest beta version.

ThrottleStop 2.90 beta 4
http://www.mediafire.com/?wyqfkhqg9tx2u8t

There's no need to reboot to toggle EIST on and off. Just do that using ThrottleStop. Go into the Options window and set Profile 1 to be your default Dual IDA profile.

 

If i start my laptop on battery i find it in saving mode (profile n°4) in throttlestop and since then i can plug my adapter in to switch it to performance mode (profile 1) .
Thing is i can't put it back into profile n°4 unless i switch it off and power up my laptop on battery. I can't even reach 600 MHz in saving mode which i could with RMclock.
Here's a screenshot of my laptop plugged in, you think i can shave a bit of voltage off it now that i am here?
Let me try doing what you are suggesting.



EDIT:I installed the beta you suggested and now i can switch from one profile to another easily but i can't understand why i can't reach 600 MHz in power saving mode.
Here's my screen:
Cpu-z reports 200*4 (x4 multiplier is nonsense) while throttlestop varies from 4*200 or 8*100.

 

The CPU can be rapidly entering and exiting SLFM mode many times a second so it is impossible for any monitoring software to report this 100% accurately. The total MHz that ThrottleStop reports is a very accurate average when the CPU is rapidly transitioning like this.

When a CPU with a default 200 MHz FSB like your T7250 goes into SLFM mode, the bus speed gets cut in half from 200 MHz to 100 MHz and the multiplier increases from 6.0 to 8.0 so the total is approximately 800 MHz. That's the Intel spec for a T7250. RM Clock lets you use the 6.0 multiplier when using SLFM mode but at the moment, ThrottleStop does not let you do this. I'll look into adding an option for this in the near future.

You're right that multipliers lower than 6.0 don't exist in the Core 2 design. The 4.0 multipliers you see in the FID column is an average based on a 200 MHz bus speed. I find seeing the FID data reported this way makes it easier to see what the CPU is really doing compared to what's actually happening internally. I found watching the actual multiplier rapidly bouncing back and forth between 6.0 and 8.0 at idle looks like useless random data.

Have you monitored with BatteryBar and RMClock and compared power consumption on battery power between 800 MHz at idle and 600 MHz? On the 45nm Core 2 CPUs there is no difference which is why I have not added this feature yet. On your 65nm CPU, there might be a small difference but since the voltage is the same at 600 MHz or 800 MHz, the difference usually isn't that much and can be difficult to measure accurately. I'm just adding a similar power consumption monitoring feature to ThrottleStop so this can be monitored and compared. It uses the same Windows API that BatteryBar is using so will report the same data.

Edit: Check out ThrottleStop 2.90 beta 5. Since someone finally asked, I added a SuperSLFM option to ThrottleStop.

http://forum.notebookreview.com/6956723-post73.html

 

Haven't tried to monitor the battery consumption as i haven't been using RMClock for a long time and my battery has surely lost some capacity meanwhile.
I got an idle temperature of 33-35°C which is fine for a cpu that used to run on 45°C at least when idle so it's a good improvement already.
I am going to try your beta now, let's see how it is.
Thank you.

 

I added SuperSLFM=1 to the .ini file but i can't make my cpu run at 600Mhz.

 

Did you enable PowerSaver and SLFM mode?



It definitely works for me. Post a screen shot so I can have a look.

You don't need RM Clock now to test 600 MHz vs 800 MHz at idle. Once you get the SuperSLFM feature working, you can compare battery power consumption at idle when running at 600 MHz or 800 MHz. You don't need a brand new battery to compare this. Battery power consumption will be the same whether your battery is old or brand new.

 

There you are, i added that SuperSLFM=1 line in the .ini file but here's the result.
At least it stays on x6 multiplier on slfm mode.

 

Try going into the Options winidow and set the PowerSaver C0% to a sky high number like 80. For testing you can go as high as 99. For the next beta I've increased the maximum value for this to 100. What this lets you do is run both cores, fully loaded, with SLFM and the lowest VID and FID. With this new feature I was able to do a quick test and compare 600 MHz to 800 MHz at full load while using the same SLFM VID for both.





From idle to full load, CPU power consumption increased approximately 5.0 watts at 600 MHz. A multiplier increase from 6 to 8 is equivalent to a 33% increase and I also saw the expected 33% increase in power consumption. It went from 5.0 to approximately 6.6 watts. (21.4 W total vs 23.0 W total). The new TS Bench puts a very consistent load on a CPU and is perfect for power measurement testing purposes.

Intel's low voltage CPUs are highly overrated when you can create your own.

The C0% number that the PowerSaver feature is based on is a very accurate measure of how hard a CPU is working internally but Intel only documents its use for the Core i CPUs. It works OK on my 45nm Core 2 mobile CPU but I haven't recently tested any 65nm Core 2 CPUs like you have. In general, as the CPU slows down internally, the C0% number goes up. At idle, as one core is trying to remain asleep and the second core is being significantly slowed down, it has to spend more time in the C0 state to process the hundreds of Windows background tasks. In my screen shot above I'm getting C0 readings of about 13% and 20% when using SuperSLFM mode. Your C0 numbers are much higher which is why ThrottleStop is preventing you from using SuperSLFM mode. An adjustment in the Options window should fix that.

What does Task Manager show for typical CPU Usage at idle? Just curious.

 

Do you want a screen of my task manager in idle?
EDIT: 600Mhz reached with your suggestion.

 

Finally! Thanks for your SuperSLFM suggestion. It was a very easy feature to add. I might add this to the Options window someday if I ever find the room for it.

At idle, with a high multiplier, my T8100 has CPU Usage around 0% to 1% in the Task Manager. When I reduce the speed to 600 MHz, it jumps around more between 1% and 6%. No need for a screen shot since we've probably gone a little off topic anyhow. Glad to hear it works.

 

Thank you once again.

 

I am reading that Alienware's should be able to do this but I have no EISt option in my bios and following this guide ( http://forum.notebookreview.com/har.../525272-guide-turn-off-eist-without-bios.html) doesn't allow me to choose the option in the program either. I have the older m15x so if anyone has gotten it working on that and could help me out that would be great

 

That EIST guide doesn't work. That's why that thread ended after one post.

EIST stands for Enhanced Intel SpeedStep. Is there a bios option for that? Most of the Dells give you this option so I thought your Alienware might be supported too but maybe not. Some HP owners have had to modify their bios to unlock the EIST option in ThrottleStop but I haven't heard of any users with your laptop successfully doing this.

 

hey unclewebb,
thanks heaps for this guide. Just have a few questions...

I have a dell d820 with T7600 core2duo 2.33

I've gone through all the steps and the best I can seem to get is:
FID: 14
VID: 1.1000 (using the Prime95 test. Any lower voltage and I start getting
errors)
Below are screenshots...
ImageShack® - Online Photo and Video Hosting
ImageShack® - Online Photo and Video Hosting
ImageShack® - Online Photo and Video Hosting
(hope those links work)

Anyways, what I wanted to know was
a) cpuz shows my core speed as about 2.33, shouldn't it be more if it's overclocked?

b) throttlestop shows my core temps up around 72degrees while doing the test (nividia shows it a little lower) is this a safe temp?

c) throttlestop won't allow me to 'uncheck' disable turbo, why is this?

thanks heaps!

 

T7600 is a 667MHz FSB CPU that doesn't support IDA. See here. I believe IDA was introduced in the next Santa Rosa series of CPUs.

 

sorry to sound like a noob but what exactly does that mean for my T7600?

that throttlestop will not effectively work for it? (cause I think it has worked in that it's got possibly got both processors working at full speed...)

or that it just won't overcloock above the 2.33??

 

As nando4 said, the older CPUs like your T7600 don't support Intel Dynamic Acceleration (IDA) or turbo boost. ThrottleStop does not let you uncheck Disable Turbo because your CPU does not have the turbo boost feature so it is permanently disabled.

The default multiplier is 14.0 for your CPU so that's exactly what you're running at. CPU-Z and ThrottleStop are reporting the correct MHz.

Intel® Core?2 Duo Processor T7600 (4M Cache, 2.33 GHz, 667 MHz FSB)with SPEC Code(s)SL9SD, SL9SJ

The good news is that some of the T7600 CPUs are actually T7600G models which means they have an unlocked multiplier and work just like an Extreme CPU. If you have a T7600G, you are going to be very happy with what ThrottleStop can do for your CPU.

Here's an example of a user that was able to increase his multiplier from 14.0 to 18.0 for a nice little boost in performance.

http://www.freeimagehosting.net/uploads/7af199c1da.jpg

CPU-Z reports his CPU as a plain Jane T7600 but under the skin, it has an unlocked multiplier so the sky's the limit. To find out if your T7600 supports this type of overclocking, right mouse click on ThrottleStop and have a look for the Unlock FID/VID feature. Once your CPU is unlocked, try increasing the multiplier to 15. This feature also lets you increase the VID voltage as high as you need to to be stable. Head over to the Extreme Unlock thread for more info.

http://forum.notebookreview.com/har...unlock-core-2-extreme-multiplier-windows.html

Edit: Here's some more background info about what these T7600G CPUs are all about and how to correctly identify one.

http://www.notebookforums.com/post3181143.html

 

@unclewebb
Any chance that something similar might be done on a T7300?

 

The T7600G was a special model and as far as I know, I think it only came in Dell laptops but don't quote me on that. It's possible that these CPUs ended up in lots of different laptops but without bios support, no one knew that they had an unlocked multiplier. ThrottleStop can take care of that problem so you don't need bios support.

The T7300 will have a locked multiplier like most other Intel CPUs. If I had a laptop that could take one of these type of CPUs, I'd be keeping my eyes open on Ebay for a T7600G. $190 bucks isn't too bad for what these CPUs can do.

http://cgi.ebay.com/Intel-Core-2-Du...724?pt=CPUs&hash=item5d2cb0630c#ht_2071wt_905

 

The T7300 is socket P (T7600 is socket M). So if you have the T7300, you have a lot of upgrade options, like the X9000.

 

Any chance to throttlestop sl9300?

 

SL9300-1.6 already has IDA support, so TS can enable that on a single core. If you want dualIDA in your X200T, then need someone to unlock MSR 0x1a0 bit 20 by creating a modded bios, an example shown here.

 

ok, when I right click on throttlestop to get the menu it does not show the option to unlockfid/vid so I'm guessing my t7600 is not a 'g' model. So no overclocking for this cpu. No probs.

Can you just let me know then if throttlestop is still of any use to my cpu?
I'm pretty sure it has allowed me to have both cores running at 14 multiplier constantly (so maximum 2.33 with both cores running simultainiously) and also to lower the voltage to my cpu to 1.1000.
Please correct me if i'm wrong cause then i'll just unistall throttle stop.

Thanks heaps for your replies. Really appreciated!

 

can someone point me towards a list of what TS can do for which processors?

 

applesplats: If you have your Windows Power Options set correctly and you have the C1E sleep state disabled then even without ThrottleStop, you should be able to run both of your cores with the 14 multiplier. This is your default multiplier so it should always be available. Some users like the Windows power saving options when running on battery power, especially when using one of the older 65nm CPUs like you have. This can drop the multiplier lower when a CPU if lightly loaded.

If you are using ThrottleStop to lower your core voltage and it is helping your laptop run cooler then you should continue using ThrottleStop. Less heat is a sign of less power consumption and increased battery life. Those are good things.

eyeland: I have a hard time remembering all of the different things that ThrottleStop can do for different processors. It's kind of like a Swiss army knife for the majority of Intel desktop and mobile CPUs. Tell me what CPU model you have and I'll tell you what ThrottleStop can do. For a T7300, you can use TS to lower your core voltage as well as monitor your CPU. I added Intel Atom support this weekend but I'm still waiting on feedback. If anyone has an Atom CPU and wants to do some testing, send me a PM.

Thanks moral hazard for clarifying that the T7300 and T7600G are not interchangeable.

 

Acer dualIDA modded bios

The Acer bios modding team has been busy giving producing more dualIDA capable modded bios for 5620G, 5920G, 7738G, 3810T/TG, 8731 with more yet to come.

Plenty of 3810T/3810TG owner's out there with a SU9400-1.4 can get a 1.6Ghz overclock for free

 

Hello, unclewebb! I use your Throttlestop with my Core 2 duo t5270 (maximum multiplier - x8), it works great.
Also I use RMclock, I set multiplier in rmclock to IDA and then set EIST to off in your utility.
I found interesting thing: its possible to set multiplier till x13 (need to edit PStatesdata in rmclock) in SuperLFM mode, and till x15, but it's needed turn off EIST for this multiplier sets for both cores. (Like Dual IDA)
I think that it's possible to set any multiplier in SuperLFM mode and then switch FSB to normal mode with saving of current multiplier. Overclock by multiplier.

Please look what possible to make.
And sorry for my bad english.

 

Have you done any testing after setting these higher multipliers to confirm you are seeing actual performance improvements? Eg: ts bench, wprime.

Being able to unlock multipliers on a Core2Duo would be fantastic if it was possible. It would then provide the same full overclocking flexibility as a Extreme cpu.

 

Yes, I test it. The frequency on each screenshot is 1.2 ghz with different FSB. I may to test performance in 3dmark 06 if you want.

 

3dmark06 has a cpumark as part of it's results. Can you post results @1.4Ghz and 2.4GHz (multi unlocked overclock). The latter should certainly give noticably better results. I'm dubious as the memory times were slower for 2.4Ghz than 1.2Ghz.

I found Everest was reporting incorrect FSB when SuperLFM flag was set in the CPU. It actually believed I had SuperLFM on my U7600 enabled when it's not even included with the CPU.

 

1.4 (200x7), 1.2 (200x6), 1.2 (100x12)

 

Nice try Rockstar59 but no cigar. As nando4 suspects this is just a Everest bug and as he rightly points out the memory bandwidth gives away the fact that the CPU is still using Dynamic FSB/SLFM.



Don't give up though, if we don't try then a lot of things will never be discovered.

 

I don't mean that I can to overclock processor by multiplier, I just mean that in SLFM mode possible to set multiplier till x15. I know that it's not gained performance but I believe that it's possible to switch then to normal mode.

 

Well at least you have helped me.

My SP9400 (ES) has no IDA.

But if I use your trick and ask for 19 x 133mhz, I get 9.5 x 266mhz (just like I would with IDA):
CPU-Z Validator 3.1

Now I have to test if both cores are active when it's 9.5x.

EDIT: wow looks like I get both cores at 9.5x, at least that's what throttlestop says.

So this is dual IDA without needing to disable EIST (which I can't do without a bios mod).

Awesome, extra .5x for free.

EDIT#2: After a few mins, I got a BSOD.

BTW I tried 20x, locked up straight away and I had to hold the power button to turn it off.

Still a very cool trick you have.

 

Then I'm not really sure what you mean. Sure you can set the SLFM twice as high as normal multi's, this has been demonstrated/mentioned a few times such as here. But what do you hope to gain? Seems Moral hopes to get his CPU a bit faster but there's a price to be paid with RAM bandwidth.

 

When SLFM is enabled ram bandwidth goes down?

 

moral hazard, look at my post #242