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

Yeah its pretty old, I just need EIST disabled and all other features that could give me a performance boost.The Cpu is overclockable I have heard of guys being able to push up until 2.1Ghz which is not bad for an old machine.

 

Even if u enable or disable you wont get any performance boost
I have 2.4 core 2 duo t7700 and it is laggy ..

 

Its worth a try...... Maybe just the boost I need.Can I get any help on this?

 

Download throttle stop it is here somewhere.. or just google

 

I have throttle stop but EIST is locked (greyed out) and can only be changed in BIOS but the option is not there.Thats why im requesting for a modded BIOS .There was a guide but I could not follow it to the end got stuck in the middle.

Here is my previous post http://forum.notebookreview.com/fuj...ens-2530-unlock-eist-bios-other-features.html

Maybe you can understand what I was asking about now.

 

yeah i know what u mean but i never used it cos they sellin t7600g only in usa and still very expensive !

links Fujitsu Siemens Amilo Pi 2530 v1.15 Fujitsu SLIC 2.1
Bios Mods -The Best BIOS Update and Modification Source - Unlocked Phoenix BIOSes
amilo-forum.de • Foren-Übersicht
BIOS Updates forum
Fujitsu Technology Solutions - Forum • View topic - [Xi 2530] Vista BSOD, BIOS question
Bios Mods -The Best BIOS Update and Modification Source - Fujitsu Siemens Amilo Pi 2530 v1.15 Fujitsu SLIC 2.1

 

nice rig! especially the bios is cool with all the features unlocked.Thanks for trying.You get a rep up for that XD.

 

Thnx man
Here is another forum ..
Try to register and ask people..

 

No problem, hey I can't see the link.

 

Ooh sorry :-D here
Forums

 

Apple doesn't let you tinker around in the BIOS? And people wonder why I refuse to service their devices at work. Ha. You'd NEED to DISABLE EIST in the BIOS for the EIST checkbox in Throttle Stop to NOT be grayed out. Also, a quick Google search would show you the operating voltages for the T7700. Here you go: SLAF7 (Intel Core 2 Duo T7700)

 

Apple DOESNT HAVE BIOS so cannot disable EIST..
It is enabled and greyed out.. cannot untick..

 

Anyone know which Alienware BIOS is compatible with my Amilo pi2530?
It has a Uniwill P55 chassis with Intel pm965 chipset.

 

sorry to post something so old, just curious would this work on T7600 CPU? 7600 2.33ghz is quite old.. in my XPS M2010 laptop. it has speedstep EIST and cstate on/off options.

turning cstate off and speedstep on helps towards better disk and boot performance but by turning speedstep off can gain more multiplier thus better performance.. is this correct? I just bought a used m2010 and hoping to max out it's performance.

 

Is it possible to have IDA on both Cores on linux?

 

Hi having trouble understanding step 4, how do you check for this

0000XXXX B9A0010000 mov ecx,0x1a0
0000XXXX 0F32 rdmsr
0000XXXX 0D00001000 or eax,0x100000
0000XXXX 0F30 wrmsr

when in result.txt you only get B9A0010000 mov ecx,0x1a0...

any help would be much appreciated

thanks

 

I ahve explored this Dual IDA thing with my Ubuntu 12.04 linux. I have a Dell D630 with a T9500 penryn inside. It has 6mb cache 800Mhz fsb, and a 13 multipler, and 14 IDA multipler. That meants 2600, and 2800 Mhz frequency respectively.

I have followed the code in this post. It did not work, my cpu was just get back into the non IDA frequency after I got disabled the intel speedstep. But I have found a workaround for that, I have to disable one of my cpu cores till the MSR registers is being written.

Whats requied: In my case od Dell D630
- Disable speedstep in bios
- Disable IDA in bios
- Both can be reenabled by writing into MSR registers

My dell bios does not allow to disable these IDA, and speedstep, when its enabled in BIOS with writing MSR registers.

All of the code should be run by root, or with a sudo.

Code:

#load MSR cpu register tool kernel module
modprobe msr

#enable SpeedStep and IDA
wrmsr 0x1a0 0x[B]0[/B]3648[B]5[/B]2489

#Lock the highest multipler 0xe=14 2800Mhz with 0x19=25 Voltage Id
wrmsr -p0 0x199 0x[B]e[/B]19
wrmsr -p1 0x199 0x[B]e[/B]19

#disable the 2nd core
echo "0" > /sys/devices/system/cpu/cpu1/online 

#disable SpeedStep
wrmsr 0x1a0 0x03648[B]4[/B]2489

#reenable the 2nd core
echo "1" > /sys/devices/system/cpu/cpu1/online 

Also there is a strange thing what I have found:
You can do an SLFM mode with adding a "8" in front of a FID: if my "wrmsr -p0 0x e16=14" means 2800Mhz in 800Fsb, "wrmsr -p0 0x 8e16=14" means the same with 400mhz fsb. But my cpu got into 2500Mhz with writing 25 multipler into the registers!

Code:

wrmsr -p0 0x[B]99[/B]16=14

Please note the "99" comes from 0x19 + 0x80 = 0x99 in HEX. 0x19 means the 25 multipler.
How come? The frequency halved states does not have a multipler lock? According to rmclock I was not able to choose such high multiplers in halved frequency modes. But I did not tried it either, to override the default rmclock settigns.

So like this Dual IDA method, it could be possible to lock into a "locked" multiplers, disable speedstep, and disable the fsb halving. For example I go for 15 multi with halved fsb, but after after disabling both speedstep and SLFM mode, I should be stuck into 3Ghz with this method. I ahve tried this with the following code, but sadly it does not work. It wont go up 800Mhz fsb after I disabled SLFM. Is there any other way to go back to the 800Mhz fsb without writing a non SLFM multipler with speedstep? With that, the multipler lock could have a workaround with SLFM enabled core 2 cpu-s.

Code:

#enable SpeedStep and IDA
wrmsr 0x1a0 0x0364852489

#enable SLFM
wrmsr  0xEE 0x9eb90400

#Step into an abnormal fid with slfm : 1500MHz
wrmsr -p0 0x199 0x8f22
wrmsr -p1 0x199 0x8f22

#disable the 2nd core
echo "0" > /sys/devices/system/cpu/cpu1/online 

#disable SpeedStep
wrmsr 0x1a0 0x0364842489

#disable SLFM
wrmsr  0xEE 0x8eb90400

#reenable the 2nd core
#the fid is locked, but its locked to "15" at 200fsb! means 3GHz 
echo "1" > /sys/devices/system/cpu/cpu1/online 

One last thing: stable voltages with my T9500:

600-2400Mhz VID:19 (0x13) 0.950
2600Mhz stock VID:22 (0x16) 0.9875 (was VID:34 (0x22) 1.15V) ~58-61°C at full load
2800Mhz IDA VID:25 (0x16) 1.025 (was VID:40 (0x28) 1.225V) ~60-65°C at full load

 

I tried to mod newest (3.22-1.07) Lenovo X200 (P8400, GM45 chipset) BIOS using kizwan's example as a guide. I changed 2 blocks in F7731B4C-58A2-4DF4-8980-5645D39ECE58.ff module. I did not found setting EIST bit in MOD_5100.ROM nor any BIOSCOD0 modules. Unfortunately I did not dissasemble other modules to check if it is only one which should be changed. I must admit it is not sufficient to change just one module in this BIOS as I am not able to unlock 9,5 multiplier. Anyone got dual-IDA working on X200?

EDIT: Disassembled all modules. None but mentioned above F7731B4C-58A2-4DF4-8980-5645D39ECE58.ff contains EIST bit setting. What else could I do to have dual IDA?

 

On Acer Aspire 8735G is working fine or not ?



CPU-Z show 3.2 GHz on T9900, but Windows 8.1 on System Properties show me 3.06 GHz.

Is a bug or real freqency ? I have moded BIOS v1.07 and Intel SpeedStep has been disabled in BIOS.

 

Can I have dual-IDA by using modified bios and CPUgenie, not Throttlestop?

 

I don't understand After restart CPU-Z it show 2925 MHz



If I run ThrottleStop 6.00 it show like this:



So why my CPU not remain overclocked ?

 

When you reboot BIOS resets settings. IIRC TS has the option to save settings but needs to be run each startup to apply them so once you are happy with your settings have task scheduler automatically start TS after reboot..

 

Now I have another problem. From the below screenshot i modify the following:



Intel Virtualization Technology = ENABLED
Intel SpeedStep = ENABLED
CX States = ENABLED
T States = ENABLED

The rest of settings from the above screenshot are DISABLED.

So the notebook is starting, I run CPU-Z in some second without ThrottleStop 6.00 and it show me for 1 minute 3191.95 MHz ... 3056.95 MHz... again 3191.95 MHz .... then 3056.80 MHz...

After 1 minute it show 3.0 X 789.90 then 3056.95 and remain at this frequency for a while then 789.90
I'm waiting another minutes to see 3191.95 or something like that... and no chance

I don't want to start ThrottleStop 6.00 after every startup of my operating system.
This must be done from the BIOS or other way...

I have another old computer with Athlon AMD64 4000+ (real 2.6 GHz) and I can overclock from BIOS using settings till 2.8 GHz or 3.0 GHz and Windows show me 2.8 or 3.0 .

Last night I restart my notebook from 30-40 times to get the correct setting but no chance

LATER EDIT:

On a search on Google I found the left screenshot.
In comparation with the right screenshot of mine the multiplier from the left screenshot show 12x instead of (6-11.5) .

Why not my processor not remain at 12x



After 30 minutes I run CPU-Z again and Go ORTHOS to stress the CPU and it show me:




This is a bug ? Now I see the Multiplier ... 11.5x and (6-12).
CPU is stressed with GO ORTHOS but no chance to get 3.2 GHz

After 1 hour I moved on Windows 7 Ultimate and I load two different versions of CPU-Z )

Now it show like this:



I think this frequency 3.2 GHz is a FAKE because if I stress my CPU using GO ORTHIS it show maximum 3.06 GHz

 

Got this to work on my Studio XPS 1640 Core 2 Duo 2.4 GHz P8600.

Stock 2 Core multiplier 9.

Tricked it to 9.5, new frequency is 2.527 GHz, 5.3% improvement.

 

That way you will not get Dual-IDA!! You have to leave SpeedStep disabled!

This is normal SpeedStep behaviour - CPU is clocked according to load, you can get extra half multiplier only for one core (it will be enabled only when one core is under some, but not full load).

You can use other software, but you have to run something at every startup and have SpeedStep disabled in BIOS.

Is it notebook? Desktop Athlon64 4000+ is not 2.6 GHz - it is 2.0 or 2.1 (depends on stepping) GHz and could be overclocked quite easily but not that far...

Set BIOS properly, then set ThrottleStop (or other software) and you will get it from the 1 start

When you disable SpeedStep and set ThrottleStop properly you will get 3.2GHz...

 

Hello all, and a question to others (have you seen this, and do you have any theories/improvements to offer?)

My x61t is loathe to go into dual-IDA mode but it will do it if I'm persistent. This is on a regular Midleton BIOS and an L7700, so my max non-IDA FID/VID is 0x919 and my IDA FID/VID is 0xa24. FTR, I'm using Linux and just reading/setting MSR registers directly.

What I see here is:

1) The IA32_PERF_STATUS registers only occasionally advertise the 0xa24 IDA FID/VID pair as the 'current maximum' on one core or the other (never both that I've seen). The rest of the time they show 0x919.

2) IA32_PERF_STATUS will only list the 0xa24 FID/VID when IDA is already enabled but not being used

3) The machine apparently will only enter dual-IDA when you happen to toggle the IDA bit when the desired 0xa24 FID/VID is advertised on one of the cores.

I don't know if this is due to to the behavior of the C2D or the BIOS interfering somehow. SpeedStep is off in the BIOS. Thermal management BIOS settings don't seem to affect the behavior.

For now, I set up a little script here that requests 0xa24 then just toggles IDA off then on via 0x1A0 once a second until the request sticks; it can take anywhere from 2 to 20+ tries. Once dual IDA is set, the processor stays at the top IDA multiplier on both cores until you explicitly turn IDA off, at least according to IA32_PERF_STATUS.

Is the 'setting dual IDA' process so hit-or-miss on other machines?

Oh Ho!

I just noticed I can temporarily offline one of the cores, which ~immediately causes the other core to offer IDA (FID/VID 0xa24). At that point, the IDA request always sticks, and upon onlining the other core, both are in IDA.

Perhaps there's a simpler way yet, but it's nice to know this seems to always work (though there is probably a very short delay between offlining the second core and IDA actually being available).

Code:

# wrmsr 0x1a0 0x1364862489
# echo 0 > /sys/devices/system/cpu/cpu1/online
# rdmsr -p0 0x198
6150a2406000615
# wrmsr 0x199 0xa24
# wrmsr 0x1a0 0x5364872489; wrmsr 0x1a0 0x1364862489
# rdmsr -p0 0x198
6150a2406000a24
# echo 1 > /sys/devices/system/cpu/cpu1/online
# rdmsr -p0 0x198; rdmsr -p1 0x198
615091906000a24
615091906000a24

edit after much playing: It's pretty clear now the x61t has little thermal headroom to work with. Stock behavior of the 'balanced' thermal strategy BIOS setting appears to be to throttle ruthlessly to keep on-die temp averaging no higher than 70C. Disabling SpeedStep and forcing 0x915 brings me to bumping up against 83C. Anything beyond that (even the 'stock' 0x919) and thermal throttling kicks in. I can run linpack for about 5 minutes at 0xa18 before throttling starts (machine locks up at 0xa17), and at the full 0xa24, the CPU overheats so fast it just powers off.

So... the x61t can do dual-IDA, but it's not clear that you'd want to. The undervolting potential of the stock clocks looks much more interesting.

Edit edit: Yeah, selecting the BIOS's 'Maximum Performance' thermal strategy stops the BIOS throttling at 70C when SpeedStep is enabled.

 

Yes, I have seen this behavior here already, just in the previous page.

I suspect, my ubuntu linux kernel always run something on both cores, the threads are switching between the cores all the time. Thus it almost never have the opportunity to enter the IDA speeds. I have a t9500 with 800mhz fsb in a Dell D630.

In the other hand SLFM, might allow us further overclock. Since SLFM=halved FSB(front side bus) speeds does not seem locked same way as the ones with full FBS speed.

For example, I can set 2500Mhz with 25x multipler with 100mhz FSB, in spite of my T9500's max multipler is 13x. Also it can enter into IDA modes, I can set 2700Mhz with 27x multipler with the IDA trick. 2600 with 26x without IDA trick, and 2800 28x even with IDA however is failing, it just does nothing.

Thus my theory was:
#1 Enter into an abnormal multipler with SLFM. For example 16x. Thats only 1600mhz with 100mhz Fsb.
#2 disable speedstep
#3 disable SLFM
#4 This was the stage when I did not know what to do, since without speedstep, it even wont revert the 200mhz fsb. (For 3200Mhz with 16x multipler)

Any idea what should I try?

 

@tjwasiakf thanks for the reply, but there is no other chance to see my T9900 processor at 3.2 Ghz permanently ?

My Windows 7 properties show me:

Processor: Intel(R) Core(TM)2 Duo CPU T9900 @ 3.06 GHz 3.07 GHz

instead of

Processor: Intel(R) Core(TM)2 Duo CPU T9900 @ 3.06 GHz 3.20 GHz (or something like that)

 

Will CPU ever drop frequencies to some slower state if Dual-IDA is enabled? I would like to have both Dual-IDA and some other state, depending on load. And is it possible to choose undervolting settings for each separately?

 

On thinkpads at least, it will only happen if required for thermal throttling, when the BIOS will drop the processor to minimum mulitplier (not SLFM). Otherwise, the processor will stay locked at full dual-IDA. You'll still have power saving C-states though-- it's not running flat out the whole time.

FID/VID transiitons are managed by the OS; undervolting can be as flexible as the OS allows. The processor will only impose minimum and maximum VID. Otherwise, the OS has complete flexibility.

 

I dont know about any software to do that, within windows, or linux.
If you enter into dual IDA, you need to disable the speedstep, to lock in the CPU the "overclocked" state.
However it would be straightforward to implement some sort of dependency on the CPU load, but no one yet to do this.
Lastly in my system, disabling/enabling speedstep, disabling one of the cores, reenabling creates a ~100ms system freeze. Thus its impractical to add dual IDA modes in the regular core frequency switching scheme.

But most importantly, the voltage, frequency set has minimal impact on the idle current consumption. The difference comes only when you use the actual thing, running something on your CPU. Even the halved SLFM modes (800-400mhz fsb cut by half) has non-measurable differences. At least a T7250, T7600, T9500, P8600 which I have tested behave like this. No idle power consumption reduction if you set it to lower speeds, perhaps only minimal.

The higher frequencies however only a tradeoff of the efficiency of the maximum speed. For example my T9500 handles 2800Mhz with ~30-35W, but it draws only 20-25W for 2400Mhz with full load on both cores. The performance ratios are 87, vs 107 Mhz/Watt.If you get a X9000/X9100 the efficiency will be dropped dramatically if you go over 3000Mhz. I can test the frequencies such as 1600Mhz, since the voltage is locked, at 0.95V, no improvement if I cant set it to the lowest required. But an U9600 which I have seen once, draws 10W total, and have 2 cores! 160 Mhz/Watt must mean something. But Im afraid you cant have this with the Txxxx or Pxxxx series, since the minimal voltage is also locked.

 

Hi all,
I have Asus G70S chipset PM965 and CPU T9500, have problem with EIST, because i have no option in my bios. Can someone modify my bios, or help me make this option real. Please write me a mail to [email protected], if it succeeds, we can talk about the prize. Many thanks Lucas

 

Sorry to wake up an old thread...

I have an old Dell XPS M1330 with T8300 and discovered this thread. I went through the steps on the first post. I was able to get my T8300 into Dual IDA mode once. But I don't know how I did it. Since then I was not able to get the Dual IDA again.

The following was what I did
- Disable the Enhanced Intel Speedstep in the BIOS.
- Set the Minimum processor state to 100% on Windows 7
- Download ThrottleStop 8.0 Beta 2
- Start/stop the ThrottleStop to get the ThrottleStop.ini file. Add DualIDA=1 to the end of this ini file.

I must be missing an important step. No matter what I did. The multiplier stuck on the multiplier 6. The photos on post 1 are missing. Otherwise, it will help me to get it going. Any help will be appreciated.

 

Hello, I have a SLAYY T9300 in a Thinkpad T61, I can eanble/disable EIST by BIOS, but can't within windows.
Is there any modded BIOS can I use? I spent a lot of money for this processor

 

Is EIST - SpeedStep grayed out in ThrottleStop? Many laptops set the lock bit on this register. You might be able to find Nando over on the Tech|Inferno forums. I cannot remember if Nando had a Dual IDA bios available for the Thinkpad T61.

http://forum.techinferno.com/hp-bus...p-27x0p-65x0-67x0-69x0-85x0-87x0-hdx9000.html

 

http://prntscr.com/dm62dc
all works but multipler won't go above 12 (which is defalut) i raise multipler and VID to maximum i tryed everything but won't go above 12
i check power states in power managment it's 100% for both (min and max processor state
i have dell xps m1730

 

Hi Uncle Webb, Kevin Glynn , awesome job your doing , im have a T5750 and as your guided it is working and throttlestopping very well . Marvellous, Magnificent and Zealous how you takeover the arena with this throttlestop phenomenon. Previously was trying to get onto you awhile back from my email natware101 concerning my FYP where my thesis observed the overheating epidemic in laptops & scaling technologies where i made a temperature alert system. Im am interested in your contribution and approach to the body of knowledge for the greater good and a great support of your products. Lets share notes.Its going like wildfire, literally. Please advise BR, Kevin Henry.
Thesis links:
https://drive.google.com/file/d/0B77nidbThlPIc1cwM1daOXgxRkpLQTZyQ3lxeDRxaWs5alJB/view?usp=sharing
https://drive.google.com/file/d/0B77nidbThlPIX3dHajJkU1VWUm9hc2JLWE1pOGlBcTN3ejg4/view?usp=sharing
https://drive.google.com/file/d/0B77nidbThlPINjZKbUpBU1lEczhZSkxRbWFwbjJmRWg4NWgw/view?usp=sharing



Throttle stop pics
https://drive.google.com/file/d/0B77nidbThlPIaVV2S1FBZGJHZlo2MURKc0JGVHJUMjg2TVRr/view?usp=sharing
https://drive.google.com/file/d/0B77nidbThlPIUUlXUHdqLXNwNElxZ3E4a0dJNS16SFhUOF9B/view?usp=sharing
https://drive.google.com/file/d/0B77nidbThlPIRXFyZE1nVzF0UkZqenpVc21BX0t5MjNCY2VF/view?usp=sharing

PS : Congrats on the most recent Obsidian initiative also just goes to show your intuitive model working for you from throttlestop and beyond this universe.

 

would this be possible on a lifebook p1630? has a su9300.

 

I know this is an old thread, but I had recently acquired a ThinkPad T61 with a T8100 CPU (newer NVS 140M Nvidia chip model). I upgraded it to 4 GB ram and stuck a 500GB HD in it and installed Windows 7 x64. This laptop looks and acts brand new with very little wear. I've always liked the ThinkPads mainly because of the TrackPoint (as I have Essential Tremors which makes touchpads an evil thing invented by the devil). Anyway, I have used ThrottleStop a few times before with varying results. I came across the T61 wiki which mentioned the Middleton BIOS mod. Being a retired Engineer, I naturally want to get the most out of my machines. So I applied the Middleton BIOS mod with no problems, mainly for the SATA speed increase and SLIC 2.1.

I was a little skeptical about the IDA increase on both cores. I had to read your post several times to make sure I understood it. It helped that you also had the T8100 that you did this with. This morning I followed your instructions exactly and lo and behold it worked like a charm. Unless I read it wrong, I understood that once the IDA had been locked on both cores that you no longer needed to run ThrottleStop for the IDA to stay stuck on high. This was not the case with me. But as soon as I run ThrottleStop, the cores immediately went back to full IDA speed. I set Voltage ID to 1.1 volts just to make sure and so far my CPU hasn't gotten any hotter than 52C. Since the CPU is rated at a top of 105C, I am very happy. So to make a long story a slight bit longer, I wanted to thank you for your excellent work.

Sincerely,
SuperChicken