Trim on new M4

Pred · 20 Sep 2011 at 20:49

I have just installed a 256gb M4 on its own in a new build and set bios too achi before installing Win7.

After all that i hooked up a 128gb M4 and two other hdd's.

I've read that Disk defragmenter should not show the ssd's but it shows all four drives and automatically has them on a defrag schedule.

Also, read that if HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\PrefetchParameters", and if "EnablePrefetcher" & "EnableSuperfetch" was 0 it meant TRIM is working.

They are set to 3 !

Is windows 7 not detecting my drives as ssd's?

Philtor · 20 Sep 2011 at 20:55

Did you run the WEI tool? This should disable disk defrag for you.

Pred · 20 Sep 2011 at 21:47

Yes i run that and after going into it more it is working correctly by not showing my ssd's for defrag schedule.

Just wondering now the 'fetch' in the registry should be 0 instead of 3 as mine are.

When does trim/garbage clean up run too?

Nick1881 · 20 Sep 2011 at 21:59

I thought Windows 7 configured it all automatically?

I haven't changed anything and mine wont even let me set a defrag schedule for C:.

In the registry though the things you said are also showing 3 for me.

Edit - found a site that said in command promt enter the following

fsutil behavior query disabledeletenotify

DisableDeleteNotify = 1 (Windows TRIM commands are disabled)
DisableDeleteNotify = 0 (Windows TRIM commands are enabled)