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

But your FSB is cut in 1/2.

My FSB is still 266mhz (throttlestop shows 9.5 x 266).

Anyway, I can't get any benchmark to run, maybe my voltage is not really 1.05v but lower.

I'll try a pinmod in the morning to bump the voltage up.

EDIT: Can anyone guess what voltage my CPU is running at when I try this trick?

 

moral hazard, when SLFM is enabled, chipset runned at 1/2 of default frequency.

 

Yes, and normally throttlestop shows 133 x 6 when I enable SLFM.
And CPUz shows 266 x 3.


But when I do this trick, CPUz shows 266 x 9.5 and so does throttlestop.
Are you saying that they are wrong?


Wait 5 mins, I will give you two screenshots.
One screenshot I will give with a 15x multi, then I will show you 19x.

EDIT: now I see you are right...

Well that's not so good.
Do you have any idea on how to get the chipset to run at it's default frequency?

 

You might find this post interesting.

 

I played with this trick a while ago. It made for a nice Everest screen shot but it only resulted in an overall performance decrease.



It's possible to increase the multiplier but with SLFM enabled, overall performance wasn't as good.
I couldn't find a way to get the higher multi without SLFM enabled.

 

Hi guys,

I have made simple guide/example on how to mod BIOS for unlocking Enhanced Intel SpeedStep Technology (EIST). This will allow everyone who own notebook with capable hardware to enable dual-IDA mode on their notebook. Have fun!
<STRIKE>Rev 1.0 : EIST Unlocked Example.pdf
Rev 1.1 : EIST Unlocked Example Rev 1.1.pdf</STRIKE>
- Rev 1.0 & 1.1 are now out-dated.
- Please use Rev 1.1a instead.
Rev 1.1a : EIST Unlocked Example Rev 1.1a.pdf
- Included detail explanation

CYGWIN Installation:-
When install CYGWIN, make sure to select nasm. "ndisasm" tool is included in nasm package.


Script:-

1. Open "Start Menu" >> Cygwin >> "Cygwin Bash Shell"
2. Navigate to BIOS image decompressed folder; "DUMP" (refer to PDF file)
3. Enter this command (press Enter after inputting the command):-
   
   Code:

   cat > ndisasm_bat.sh

4. Copy the script in the *spoiler* below
   
   
   Spoiler

   Code:

   #!/bin/bash
   echo "--> disassembling *.ROM files"
   for f in $( ls *.ROM ); do
       DIS=$(echo $f | sed 's/\(^[a-zA-Z0-9_-]*\).\([a-zA-Z]*\)/\1.DASM/')
       DIS16=$(echo $f | sed 's/\(^[a-zA-Z0-9_-]*\).\([a-zA-Z]*\)/\1.16.DASM/')
       echo "--> Creating disassembled file: $DIS"
       echo "ndisasm -a -b 64 $f > $DIS"
       ndisasm -a -p intel -b 64 $f > $DIS
       echo "--> Creating disassembled file: $DIS16"
       echo "ndisasm -a -b 16 $f > $DIS16"
       ndisasm -a -p intel -b 16 $f > $DIS16
   done
   for f in $( ls *.ff ); do
       DIS=$(echo $f | sed 's/\(^[a-zA-Z0-9_-]*\).\([a-zA-Z]*\)/\1.DASM/')
       DIS16=$(echo $f | sed 's/\(^[a-zA-Z0-9_-]*\).\([a-zA-Z]*\)/\1.16.DASM/')
       echo "--> Creating disassembled file: $DIS"
       echo "ndisasm -a -b 64 $f > $DIS"
       ndisasm -a -p intel -b 64 $f > $DIS
       echo "--> Creating disassembled file: $DIS16"
       echo "ndisasm -a -b 16 $f > $DIS16"
       ndisasm -a -p intel -b 16 $f > $DIS16
   done
   for f in $( ls *.PEI ); do
       DIS=$(echo $f | sed 's/\(^[a-zA-Z0-9_-]*\).\([a-zA-Z]*\)/\1.DASM/')
       DIS16=$(echo $f | sed 's/\(^[a-zA-Z0-9_-]*\).\([a-zA-Z]*\)/\1.16.DASM/')
       echo "--> Creating disassembled file: $DIS"
       echo "ndisasm -a -b 64 $f > $DIS"
       ndisasm -a -p intel -b 64 $f > $DIS
       echo "--> Creating disassembled file: $DIS16"
       echo "ndisasm -a -b 16 $f > $DIS16"
       ndisasm -a -p intel -b 16 $f > $DIS16
   done
   echo "--> Checking MSR register for EIST: mov ecx,0x1A0" > RESULTS.TXT
   echo "--> Checking MSR register for EIST: mov ecx,0x1A0"
   grep -i "mov ecx,0x1A0" *.DASM >> RESULTS.TXT
   grep -i "mov ecx,0x1A0" *.DASM

5. Click the CYGWIN icon at the left-top corner of "Cygwin Bash Shell" window >> Edit >> Paste
   
   Spoiler

   
6. Press Enter one time & press "Ctrl" + "D".
7. Make it executable file:-
   
   Code:

   chmod +x ndisasm_bat.sh

Acknowledgments:-
- nando4 for helping me when I investigate the EIST Locked bit.
- unclewebb for the great ThrottleStop software.
- Dufus: the brains behind Dual IDA and a few more TS features.
- andyp@mydigitallife for the great Phoenix Tool, also for providing the fix for module reintegration problem.
- middleton for the brilliant assembly code tips (see post #322).

Known issues:-
####################################################################################
1) Phoenix BIOS & EIST Locked bit located in "F7731B4C-58A2-4DF4-8980-5645D39ECE58.ff" module

When rebuilding the modified BIOS image, it will probably failed with this error:-

Code:

Changes detected in F7731B4C-58A2-4DF4-8980-5645D39ECE58.ff
Changes detected in TEMPLAT00.ROM
New F7731B4C-58A2-4DF4-8980-5645D39ECE58.ff Module is 118386 bytes too big
New F7731B4C-58A2-4DF4-8980-5645D39ECE58.ff Module is 118386 bytes too big
F7731B4C-58A2-4DF4-8980-5645D39ECE58.ff not reintegrated
Unable to reintegrate F7731B4C-58A2-4DF4-8980-5645D39ECE58.ff

If it failed as shown above, please use AndyP's Phoenix tool version 1.77 or later. The reintegration should be successful:-

Code:

Changes detected in F7731B4C-58A2-4DF4-8980-5645D39ECE58.ff
New F7731B4C-58A2-4DF4-8980-5645D39ECE58.ff Module is 2 bytes too big
New F7731B4C-58A2-4DF4-8980-5645D39ECE58.ff Module is 2 bytes too big
** F7731B4C-58A2-4DF4-8980-5645D39ECE58.ff [B][U]reintegrated successfully[/U][/B]

####################################################################################
2) Lenovo IdeaPad Y450's BIOS (Phoenix BIOS)

No matter what I did, I unable to build modified BIOS image for this notebook. It failed with this error:-

Code:

Changes detected in F7731B4C-58A2-4DF4-8980-5645D39ECE58.ff
New F7731B4C-58A2-4DF4-8980-5645D39ECE58.ff Module is 2 bytes too big
New F7731B4C-58A2-4DF4-8980-5645D39ECE58.ff Module is 2 bytes too big
F7731B4C-58A2-4DF4-8980-5645D39ECE58.ff [B][U]not reintegrated[/U][/B]
[B][U]Unable to reintegrate[/U][/B] F7731B4C-58A2-4DF4-8980-5645D39ECE58.ff

UPDATE (13 February): The reason why it failed is because there is not enough "space" to accommodate the extra 2 bytes. <STRIKE>Also can't rebuild it with Phoenix BIOS Editor because the modified BIOS image seems buggy (compared both original & modified BIOS with AndyP's Phoenix tool). I hope this is rare case & only involved Lenovo IdeaPad Y450's BIOS.</STRIKE> No longer a problem. Please refer to Rev 1.1a doc.

UPDATE (30 March): Thanks to middleton's inputs & comments at post #322, there is a solution on the "Module is X bytes too big" issue. Please refer to the latest document revision, Rev 1.1a, for more information.​

####################################################################################

kizwan

 

Modified BIOS image for Qunata TW8 with EIST Unlocked:-



BIOS 3G51 @
Qunata TW8 EIST MOD.rar

 

@thunder372, you forgot to post the screenshot.

Qunata TW8 with dual-IDA enabled:-

 

is it possible to add the EIST option to the bios on the M570RU? EIST is enabled bu there is no bios option to toggle it.

 

Your notebook BIOS is 57RU_12 (R12R10.WPH), yes? I just checked & I found there is no hidden option for EIST (for toggle between enabled/disabled) in it. It is not possible to add new options in BIOS. (Theoretically, it is actually possible but extremely complicated.)

On further checking, I found EIST is locked. You can follow the guide (EIST Unlocked Example.pdf) to patch your BIOS to prevent it from locking EIST. This way you can control EIST (enabled/disabled) using ThrottleStop.