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

[StaFForD]

I finally got the program working, and got my BIOS password from Dell so I could disable Speedstep

Unfortunately, I can't seem to increase my multiplier past the default 12 and therefor unable to overclock at all, but I can lower my VID. Am I doing something wrong or is it just not possible for me to do it?

I have a T7200 in a Dell Inspiron E1705 btw

[nando4]

See unclewebb's signature for latest version of Throttlestop

Introduction An EIST-unlocked bios will provide a full multipler (or half for 1066Mhz FSB P8xxx or T9xxx cpus) , gaining 4-17% more CPU performance on any IDA-capable Core 2 Duo/Quad CPU when using Throttlestop. Examples shown on the right. Throttlestop also extends the highest voltage range available which is handy for greater setfsb overclockability and decreases the lowest voltage available for undervolted battery life improvements. Combining dual/quad-IDA and PLL overclocking will give the greatest possible overclocking. Originally this thread only had Dell/Alienware dual-IDA C2D success stories. Now there is quite a few modded bioses below which allow the system to be dual-IDA overclocked.

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Example of dual-IDA clocked C2D CPUs SU9300-1.20 -> 1.40@x7 SU9400-1.40 -> 1.60@x8 SU9600-1.60 -> 1.80@x9 SL9400-1.86 -> 2.13@x8 SL9600-2.13 -> 2.40@9 P8400-2.26 -> 2.40@x9 P8600-2.40 -> 2.53@x9.5 T9400-2.53 -> 2.66@x10.5 T9550-2.66 -> 2.8@x10.5 P8800-2.66 -> 2.83@x10.5 T9600-2.80 -> 2.93@x11 T9900-3.06 -> 3.20@x12 Q9000-2.00 -> 2.26@x8 Q9100-2.26 -> 2.53@x9 Q9200-2.40 -> 2.66@x9.5 U7600-1.20 -> 1.33@x10 U7700-1.33 -> 1.46@x11 T5270-1.40 -> 1.60@x8 L7500-1.60 -> 1.80@x9 L7700-1.80 -> 2.00@x10 T7250-2.00 -> 2.20@x11 T7300-2.00 -> 2.20@x11 T8100-2.10 -> 2.30@x11.5 T7500-2.20 -> 2.40@x12 T7700-2.40 -> 2.60@x13 T8300-2.40 -> 2.60@x13 T9300-2.50 -> 2.70@x13.5 T9500-2.60 -> 2.80@x14

How to setup Throttlestop to use the extra multiplier the dual-IDA bios provides?

See 2.0's great guide here skipping step 1 and step 2.

Successful implementations of dual-IDA using ThrottleStop (TS)

Dell/Alienware

Latitude: D830+T9500, D830+T8100, E4300+SP9400, E6400+T9800.
Inspiron: 1520+T7500.
Vostro: 1400+T9300, 1500+T9300, 1500+T7250.
XPS: 16+T9550, M1330+T7500, M1730+T9300.
Studio: 1735+T8300

Dual-IDA with modified BIOS

kizwan's EIST Unlocked Example.pdf here explains how to mod your bios to be dual-IDA capable, with the resultant modified bios below:

Acer: 3810T/3810TG, AS4310, EX5235, EX5220/EX5620/EX5620G/EX5620Z/EX5620ZG/TM5320/TM5720/TM5720G, 5230/5230E/5330/EX5630G/5630/5630Z/5630EZ/5725G/TM5730G/5730, AS5738ZG/5738DZG/5738Z/5738G/5738/5736Z/5736G/5338, 6920G, TM7730/TM7730G/EX7630/EX7630G/EX7630ZG, AS7738G/AS7738/AS7735G, 8731, 8735G, 8935. Eg: 5620G+T5270, 5920G.

Clevo: M570RU

Compal: NBLB2

Gateway: P7805u

HP: dv4-1xxx/CQ40/CQ45, dv5-1xxx, dv6-1xxx, dv7-2xxx, dv9+T7700, 25x0P/27x0P/6510B.W/6710B.W/6910P.W/85x0P.W/87x0P.W/HDX9000, HDX16/HDX18.

Lenovo: R61.i.e/T61.p/X61.s.t/X300, Y450, F31.

Packard-Bell: Ipower GX-M003GE, EN TR85 / TR86 / TR87.

Quanta: TW8+T5870

Sager: NP5793, NP2096

Sony: VGN-AR760U, SZ56, VGN-TZ3RXN

Toshiba: Qosmio X300

Other notes

• dual-IDA can be enabled on Linux as described
  
  
• T4xxx/T6xxx/SU4100/SU7300 CPUs have no IDA support
  
  
• Appears all other systems except Dell/Alienware have EIST locked down, so require a modded bios.
  
  
• The 2510P's u7600 was single-IDA capable even prior to applying the modded bios however it was inactive. It required TS to activate IDA. Running TS in the background will maintain single-IDA as will exiting TS *only* if using a High Performance profile with minimum CPU set to 100%. Single-IDA increased the 2510P's Win7 WEI by 0.2 points as shown here.

[unclewebb]

All that work getting ThrottleStop working StaFForD and now I have to tell you that the T7200 does not support IDA mode.

Thanks for the hard work nando4. I added a link to your post to the first post in this thread to help other users. I think many of the Alienware laptops also support adjustable EIST and Dual IDA mode.

[StaFForD]

oh well, at least I decreased my voltage

[osnposn]

Got it working without any probs (As far as I know) on the Studio XPS 16 (old version) with a X9100

[unclewebb]

This is the Intel Dynamic Acceleration thread. A beautiful screen shot like that should be over here in this thread.

How to Unlock the Core 2 Extreme Multiplier in Windows

You might need to add a little core voltage to get that 100% stable when fully loaded. If not, you've got a great CPU.

[osnposn]

Sorry, feel free to move it
Read something about 'post your experiences on your xx setup here!'.

Tested the 3,6 on half an hour of stress with the standard voltage without probs, so I guess she wants more..

Btw: somehow wired that now, when everyones wants the newer cpus, these ways are figured out how to nearly oc every c2d...........

[Dillio187]

Originally Posted by bbz_Ghost

Yah, I did that earlier, funny thing was that even when I disabled ThrottleStop it "stuck" - even across a reboot it was still going at the 9.5x multiplier. Not a good thing on battery but I resolved it.

I was merely asking that other person to post how he'd done it, I already got the same results (I'm sure of).

Another funny thing is that I can't find anything from Intel that verifies the SP9400 supports IDA but, there is it, 9.5x. It's not much - at the stock speed of 2.4 GHz and 9x multiplier I had wPrime at 38 and some odd milliseconds; at 2.527 GHz it was 36 and some more odd milliseconds.

Something is better than nothing, I suppose.

sorry, just noticed this reply (haven't been tracking this thread a ton)

As you've discovered, that is how I am running it, with UAC disabled in Windows 7. I just updated to 2.85 and it seems a little less quirky. I also have my VID voltage turned down to 1.1 for a little cooler running.

[TheCodeBreaker]

Thanks kevin this thing worked out perfectly on my Dell XPS M1330. Its got a T7300 if that matters.

Will be using this on other lappies

[RWUK]

Finally spent some quality time with the program. Thanks to unclewebb for his pointers along the way. I've previously been undervolting with RM Clock which does nothing with the IDA 9.5x FID so my computer wasn't ever running on it. I did some wPrime testing (five 32m runs) with Throttlestop set up like in the first post of this thread, then with my old RM Clock settings and then using neither of these, just Windows power management.

Throttlestop was of course, noticeably quicker.


The times for each run were
1. 33.917 seconds
2. 33.678
3. 33.817
4. 33.566
5. 33.459



1. 35.584 seconds
2. 35.769
3. 35.583
4. 35.429
5. 35.475

And then the Windows times were

1. 36.863
2. 35.769
3. 36.116
4. 36.630
5. 35.880


On battery only, I noticed that Battery Bar has gone from an estimate of 2 hours 50 minutes to 2h 57m but since today has dropped down to 2h54m. Unfortunately, it seems like there's not much out there for measuring consumed cpu voltage but Battery Bar does have a discharge rate so seems that's the best I can get for now. I've noticed that it's gone up a little from using RMClock but that's a huge variable and I've not paid too much attention to it as of now.

I'll keep a close eye on the discharge rate though and do some more testing. I'm really interested in how much power TS allows the CPU to use at full dual IDA w/ the processor usage in the ~10% area vs RM Clock's 6x FID SLFM.

Other than task scheduler, is there a way to get TS to start up at logon? There must be some kind of registry addition but I'm not sure exactly.