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Crucial C300 - Registry LPM Rapid Storage Fix

post #1 of 7
Thread Starter 
Apparently the C300 drive can't handle LPM from Intel Rapid Storage. This causes lockups and can cause the drive to run slower than intended.

The fix below not only stops lockups and freezes but increases the overall speed of the drive.

You can check Event Viewer for this error code which might indicate you are affected by this problem:
Quote:
Event ID:9 - The device, \Device\Ide\iaStor0, did not respond within the timeout period

Solution:

The needed Registry File to disable LPM on all Intel Ports it is easy to create. Simply create a new Text File, Copy and Paste the text below and then name it anything (example “LPM.reg”)

When you have saved the file double click on the file to apply and restart your system. On the next boot up LPM will be disabled on those ports.

You can also avoid disabling LPM on certain ports by deleting the line in the registry file below that corresponds with them.

Registry Fix:

Start copy at the beginning of next line:

Windows Registry Editor Version 5.00


[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\iaStor\Parameters\Port0]

"LPM"=dword:00000000
"LPMDSTATE"=dword:00000000
"DIPM"=dword:00000000


[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\iaStor\Parameters\Port1]

"LPM"=dword:00000000
"LPMDSTATE"=dword:00000000
"DIPM"=dword:00000000


[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\iaStor\Parameters\Port2]

"LPM"=dword:00000000
"LPMDSTATE"=dword:00000000
"DIPM"=dword:00000000


[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\iaStor\Parameters\Port3]

"LPM"=dword:00000000
"LPMDSTATE"=dword:00000000
"DIPM"=dword:00000000


[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\iaStor\Parameters\Port4]

"LPM"=dword:00000000
"LPMDSTATE"=dword:00000000
"DIPM"=dword:00000000


[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\iaStor\Parameters\Port5]

"LPM"=dword:00000000
"LPMDSTATE"=dword:00000000
"DIPM"=dword:00000000

Copy ends above this line:

If You Prefer To Do It By Hand:

If there are no "Ports" under the iaStorV/iaStor Parameters, you will need to Manually Creating the Registry Location and Keys:

1. Go to Start-> Run..

2. Type in RegEdit and hit the Enter Key..

3. Go to the following Key location to insert or configure the registry keys for LPM:


Code:

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\iaStor\Parameters\

4a. Right click "Parameters" select "New" then name it "Port0".

4b. Left click "Port0" to open and in the pane with Name/Type/Data, Right click select "New" then "DWORD" and name the new value "LPM".

4c. Repeat 4a/4b "LPMDSTATE" and "DIPM".

5. When you want to ad the other Ports also to registry, then repeat the steps from 4a to 4c and name it Port1, Port2, Port3, Port4 and Port5.


Cited From:

http://forum.crucial.com/t5/Solid-State-Drives-SSD/Solution-C300-Disk-Freeze-ups-in-Windows-7-solved-for-me/td-p/38766
    
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post #2 of 7
Sorry to bump this old thread, but i did everything like you said and i get this error...

155

This is what i copy to the text document, which later i renamed to LPM.reg,


[HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\ser vices\\iaStor\\Parameters\\Port0]

"LPM"=dword:00000000
"LPMDSTATE"=dword:00000000
"DIPM"=dword:00000000


[HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\ser vices\\iaStor\\Parameters\\Port1]

"LPM"=dword:00000000
"LPMDSTATE"=dword:00000000
"DIPM"=dword:00000000


[HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\ser vices\\iaStor\\Parameters\\Port2]

"LPM"=dword:00000000
"LPMDSTATE"=dword:00000000
"DIPM"=dword:00000000


[HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\ser vices\\iaStor\\Parameters\\Port3]

"LPM"=dword:00000000
"LPMDSTATE"=dword:00000000
"DIPM"=dword:00000000


[HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\ser vices\\iaStor\\Parameters\\Port4]

"LPM"=dword:00000000
"LPMDSTATE"=dword:00000000
"DIPM"=dword:00000000


[HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\ser vices\\iaStor\\Parameters\\Port5]

"LPM"=dword:00000000
"LPMDSTATE"=dword:00000000
"DIPM"=dword:00000000

Thatts it, here the text finish just like you said, so whats wrong? i have this issue and i want to fix it really frown.gif
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post #3 of 7
All the double slashes you have there need to be single slashes. I fixed the OP for you try again.

Ex.
Quote:
[HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\ser vices\\iaStor\\Parameters\\Port0]

Needs to be:
Quote:
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\iaStor\Parameters\Port0]
post #4 of 7
Thanks alot! smile.gif

rep+

Edit: lol cant give rep+ frown.gif
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post #5 of 7
Quote:
Originally Posted by psyside View Post

Thanks alot! smile.gif

rep+

Edit: lol cant give rep+ frown.gif

No problem,

I'm part of OCN staff and can't be rep'd now. lol
post #6 of 7
ya its ok thumb.gif, btw is there anyway to make sure LPM is disabled after the procedure?

Nevermind, found it!
Edited by psyside - 3/30/12 at 12:38am
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post #7 of 7
Quote:
Originally Posted by Sean Webster View Post

All the double slashes you have there need to be single slashes. I fixed the OP for you try again.

Ex.
Quote:
[HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\ser vices\\iaStor\\Parameters\\Port0]

Needs to be:
Quote:
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\iaStor\Parameters\Port0]
The reason they are double slashes, is they were originally for copying into a textfile (with .reg extension) and then double-clicking to merge.

Go ahead and export some registry keys, then open with notepad. It's all escaped slashes.

I'd include an easily copyable code box in case anyone just wants to copy-paste the solution. wink.gif
     
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