How To Correctly Setup Your Ssd And Get The Advertised Read And Write Speed

**odinlives** · August 21st, 2011 03:58 AM

Ok guys today I am going to show you how to properly setup your SSD and get to the advertised read and write speed of your SSD. I recently purchased and two OCZ agility 3 hard drives and took them back due to them not getting even close to the correct read and write speeds. I ended up getting a Crucial M4 but was still not getting the proper speeds so I did some searching and finally figured it out on my own with different information on the net and took the time to put together this tutorial to help out anyone that wants to have lightning fast speeds with their SSD's.

The first thing you are going to have to do is open up "regedit" by going to the start menu and typing regedit and hit enter. If you have user account control turned on you are going to need to right click and run as administrator.

If you do not like messing with your registry then go here and MS has a file you can download which will do it for you:

Code:

https://support.microsoft.com/kb/922976

In Registry Editor click on HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services and scroll all the way down to the folder called "msahci" and then right click on the icon called "start" in the right hand pane and choose modify.

Here we are going to set the Value data to "0" and click ok like the picture below:

Next thing you need to do is reboot your computer and enter the bios and enable "AHCI"

Upon first boot in Windows 7 it will load AHCI drivers for each present drive and then you will need to reboot once more.

After that you will be getting the proper "Read and Write" speeds for you new shiny SSD.

Please see the below to screenshots and check out the 232 point difference in the benchmark.

Also please note that each time you see red as in the picture below that says "pciide - BAD" in anyones benchmark results it means that they have not properly setup their SSD. As you can see by the bottom benchmark it is now stating "msahci - OK" and it is green for good reason.

Before:

After:

**gor17981** · August 22nd, 2011 10:52 AM

Awesome tutorial buddie

**bigcyco1** · August 25th, 2011 03:36 AM

Hi sorry must of missed this great tut bud thanks!

**odinlives** · August 25th, 2011 06:19 AM

Originally Posted by bigcyco1

Hi sorry must of missed this great tut bud thanks!

Welcome Big....I had some troubles so figured I'd share. I was ready to smash my SSD with a hammer when I wasn't getting the proper sequential read and write speeds....

Had to take a deep breath and figure it out

**nofx1994** · February 11th, 2012 04:42 PM

a great tutorial but here is the ssd i am getting
https://www.tigerdirect.com/applicati...3ORDER-_-Deals

but won't it get the proper speeds if you plug it into a sata 6gb/s port without having to change the registry

**odinlives** · February 11th, 2012 05:01 PM

Originally Posted by nofx1994

a great tutorial but here is the ssd i am getting
https://www.tigerdirect.com/applicati...3ORDER-_-Deals

but won't it get the proper speeds if you plug it into a sata 6gb/s port without having to change the registry

Awesome choice on your SSD NOFX. I have two of these now running in RAID0 and they are amazing.

To answer your question you will definitely need to to update the registry more than likely. In the tutorial I used the exacty same SSD Crucial M4 and the benchmark I did "before" was before I changed the registry and set the mode to AHCI.

After doing this the sequential Read went up over 100 Mbs which is pretty substantial.