Intel X-25M G2 80gb SSD general question.

Hi how do i know that i have msahci.sys driver that does auto triming installed in my computer? I checked the system32 folder and its not there.

I am running windows 7 home prem 64bit

 

you can install the latest Intel IRST drivers, they now support TRIM

http://downloadcenter.intel.com/detail_desc.aspx?agr=N&ProductID=&DwnldID=15251

 

check device manager, IDE/ATAPI conrollers, and the AHCI Serial ATA controller. Go to Driver, and then Driver Details, and you should see the files listed there.

 

It is in Win7 as a standard driver. It works automatically. Type the below into DOS exactly as you see it and hit return:

fsutil behavior query DisableDeleteNotify

If it returns a 0, this means the TRIM commands are being sent properly. You can also check with CrystalDiskInfo which will list TRIM as being active.

 

The command you listed only means TRIM is enabled in the Filesystem

http://blogs.msdn.com/e7/archive/2009/05/05/support-and-q-a-for-solid-state-drives-and.aspx

"Correct, if fsutil reports that "DisableDeleteNotify" is 0, then Trim is enabled. (The feature is sometimes referred to using different names: Trim == Delete Notification == Unused Clusters Hint.) The setting is written in terms of disabling something because we like to use values of 0 for defaults.

Have Trim enabled according to this setting, which you do, means that the filesystem will send Trim commands down the storage stack. The filesystem doesn't actually know whether this command will be supported or not at a lower level. When the disk driver receives the command, it will either act on it or ignore it. If you know for sure that your storage devices don't support Trim, you could go ahead and disable Trim (enable DisableDeleteNotify) so the filesystem won't bother to send down these notifications. However sending down the notifications is pretty lightweight and I haven't seen any performance improvement by disabling them, so I don't recommend disabling this setting. If you have an SSD which does support Trim, then you definitely don't want to disable it, because there are some performance gains to be had for leaving the setting in its default form.
Thursday, May 07, 2009 4:27 PM by craigbarkhouse"

 

ok I see it.

Do I really need to install that driver and what does it do??

 

No, you don't need it.

 

Well I just installed intel RST because someone got a performance boost, now I dont see msachi.sys on the drivers list. but the DisableDeleteNotify thing is still 0 on command.does that mean i still have trim?