Computer without ACHI

masscrazy · 20 Jun 2012 at 21:29

So someone i know wants an SSD in a 2 year old laptop. It takes a 320GB SATA2 3Gb/s drive atm. He wants to upgrade to a 120GB SSD, how will not having ACHI effect the SSD?

Also i realise that it is SATA2 and therefore wont perform at the higher stated speeds but aside from that, no ACHI?

olivier renault · 20 Jun 2012 at 22:23

Speed mostly, although not a great deal.

AFAIK TRIM works with IDE. Can't remember the command to check if it is enabled in Win 7. Dunno about Vista or XP.

opstrat · 21 Jun 2012 at 05:05

http://benchmarkreviews.com/index.p...sk=view&id=505&Itemid=38&limit=1&limitstart=3

explains it pretty well here.

ssd's go that fast in the 1st instance, would u notice the speed difference? i dont think you would.

same with sata 2 and 3.

so really achi is down to weather u want ot hot swap the drives or not.

the run cmd for trim is fsutil behavior query DisableDeleteNotify

is the result is 0 u got trim enabled

masscrazy · 21 Jun 2012 at 17:33

So you're saying you can't feel the difference between sata2 and sata3? But sata2 can't reach 500mb read like sata3....

So in terms of Trim, that is hardware independent? And is more a win7 thing?

So essentially I'm asking if a new sata3 m4 for example is worth putting into a sata2 laptop?.

olivier renault · 21 Jun 2012 at 18:56

masscrazy said:
So you're saying you can't feel the difference between sata2 and sata3? But sata2 can't reach 500mb read like sata3....

So in terms of Trim, that is hardware independent? And is more a win7 thing?

So essentially I'm asking if a new sata3 m4 for example is worth putting into a sata2 laptop?.

Yes, It's not sequential reads that's the main benefit, but mostly IOPS for laptops that count (general usage and windows boot), and new SSDs are generally better than older SSD in that regard. In any case, we're talking a few seconds difference shaved off the boot time, where as a decent SSD versus a HDD will be quite a few tens of seconds.