Installed a SSD, do I need TRIM?

I would - I have a 512GB Crucial m4 SSD and I've had TRIM enabled since I installed the SSD. To find out more about TRIM - see this article from Wikipedia. It just keeps you SSD 'healthy'.

And I use TRIM Enablerto enable TRIM - just be aware that with every software update (going from 10.7.3 to 10.7.5 - which I would recommend doing) you must use TRIM Enabler AGAIN.

Good luck,

Clintin

Here's the System Info on my SSD:

M4-CT512M4SSD2:

Capacity: 512.11 GB (512,110,190,592 bytes)

Model: M4-CT512M4SSD2

Revision: 040H

Serial Number: 000000001205032CC056

Native Command Queuing: Yes

Queue Depth: 32

Removable Media: No

Detachable Drive: No

BSD Name: disk0

Medium Type: Solid State

TRIM Support: Yes

Partition Map Type: GPT (GUID Partition Table)

S.M.A.R.T. status: Verified

Volumes:

disk0s1:

Capacity: 209.7 MB (209,715,200 bytes)

BSD Name: disk0s1

Content: EFI

Macintosh HD:

Capacity: 511.25 GB (511,250,432,000 bytes)

Available: 369.54 GB (369,544,036,352 bytes)

Writable: Yes

File System: Journaled HFS+

BSD Name: disk0s2

Mount Point: /

Content: Apple_HFS

Volume UUID: A010BEA0-E0B9-3EDC-B13D-BAB093AC4E57

Recovery HD:

Capacity: 650 MB (650,002,432 bytes)

BSD Name: disk0s3

Content: Apple_Boot

Volume UUID: 3F8BD124-7B04-32BB-ABDA-D56C533E81F6

As you can see, TRIM is enabled.

Clinton

I've never had an issue with the app - like I said, though, (and this holds true even if you use Terminal to enable TRIM support) each time that there's a .1 update to OS X, you must enable TRIM again. Not too big a deal - you just have to remember to run it again, restart, and - voila! - TRIM support is back.

Clinton