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Windows 7: Show us your SSD performance

09 Feb 2010   #131
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Fair enough.


My System SpecsSystem Spec
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09 Feb 2010   #132
Gildor

 
 

Quote   Quote: Originally Posted by tw33k View Post
I enabled AHCI on my board and only gained a slight increase in performance however it slowed boot time right down so I went back to IDE mode. (see attached)
If the OS was not installed with AHCI enabled, enabling it after the fact will not help you. Indeed, as you have seen, it can actually hurt your machine's performance.

I had the same issue when I recently built my new system. I first installed Win7 onto my SSD with IDE enabled. After installation I tried switching to AHCI. My system would not even boot. I wound up wiping my drive and starting the install process over from scratch.
My System SpecsSystem Spec
09 Feb 2010   #133
tw33k

Windows 7 Ultimate (x64) SP1
 
 

Quote   Quote: Originally Posted by Gildor View Post
If the OS was not installed with AHCI enabled, enabling it after the fact will not help you. Indeed, as you have seen, it can actually hurt your machine's performance.

I had the same issue when I recently built my new system. I first installed Win7 onto my SSD with IDE enabled. After installation I tried switching to AHCI. My system would not even boot. I wound up wiping my drive and starting the install process over from scratch.
I was curious to see the effect. Regardless of whether I enable it before installing the OS or not, the boot time will be slower with AHCI as the mobo does it's thing prior to loading windows. I might still try it but does anyone really think performance will improve? As it stands the ssd is performing very well. I can't see the benefit of enabling AHCI. Perhaps I just don't understand it properly.
My System SpecsSystem Spec
.

10 Feb 2010   #134
Gildor

 
 

Quote   Quote: Originally Posted by tw33k View Post
Quote   Quote: Originally Posted by Gildor View Post
If the OS was not installed with AHCI enabled, enabling it after the fact will not help you. Indeed, as you have seen, it can actually hurt your machine's performance.

I had the same issue when I recently built my new system. I first installed Win7 onto my SSD with IDE enabled. After installation I tried switching to AHCI. My system would not even boot. I wound up wiping my drive and starting the install process over from scratch.
I was curious to see the effect. Regardless of whether I enable it before installing the OS or not, the boot time will be slower with AHCI as the mobo does it's thing prior to loading windows. I might still try it but does anyone really think performance will improve? As it stands the ssd is performing very well. I can't see the benefit of enabling AHCI. Perhaps I just don't understand it properly.
I saw no difference in the BIOS part of the boot process whether IDE or AHCI was enabled. The difference for me was in Windows booting.

The benefit is that TRIM is passed along to the SSD only in AHCI mode, so you will not get the advantage of auto TRIM in IDE mode.
My System SpecsSystem Spec
10 Feb 2010   #135
zrtom

W8 Pro, W7 Ultimate, XP Pro x64, Vista x64, Ubuntu
 
 

Here's an interesting article that was just published a couple days ago. The Kingston folks talk a little about how they consider SSDs actually having increased reliability over dino drives. And gives some encouraging information of what happens when SSDs ultimately wear out (they are still readable, just not writeable, so data recovery is possible). It also references some of their antics trying to destroy SSDs (baseball bat, auto, blowtorch....).

Q&A: Tom's Hardware And Kingston On SSD Technology : Kingston Up Close - Review Tom's Hardware
My System SpecsSystem Spec
10 Feb 2010   #136
pparks1

Windows 7 Ultimate x64
 
 

Quote   Quote: Originally Posted by tw33k View Post
I was curious to see the effect. Regardless of whether I enable it before installing the OS or not, the boot time will be slower with AHCI as the mobo does it's thing prior to loading windows. I might still try it but does anyone really think performance will improve? As it stands the ssd is performing very well. I can't see the benefit of enabling AHCI. Perhaps I just don't understand it properly.
I tested performance with my standard 7,200RPM Western Digital Caviar Black and my 80GB Intel X25-M G2 SSD drive on my box and the performance difference equated to nothing between IDE mode and AHCI mode, In test utilities like HDTune, my performance actually dropped by 2-3MB/s...but that is honestly imperceivable when booting, launching apps or using the computer.

However, with my Gigabyte GA-EP45-UD3R Rev 1.1 motherboard, when AHCI is enabled, there is an 8 second delay as the AHCI components are initializing during the POST of my machine at every boot. Unfortunately, with AHCI enabled, it costs me 8 seconds at every boot. Any my stopwatch and testing methods show that I'm not really able to gain that 8 seconds back from performance increases with the drive in a few hour period of time.

Therefore, I leave my box on IDE mode.

Quote   Quote: Originally Posted by Gildor View Post
The benefit is that TRIM is passed along to the SSD only in AHCI mode, so you will not get the advantage of auto TRIM in IDE mode.
From what I have read, this is not true when using the default Windows 7 drivers for TRIM support. I believe this is true with I install the Intel drivers for my SATA controllers according to the Intel website...therefore I just stuck with the Windows drivers and things seem to be just fine.
My System SpecsSystem Spec
10 Feb 2010   #137
Gildor

 
 

Quote   Quote: Originally Posted by pparks1 View Post
However, with my Gigabyte GA-EP45-UD3R Rev 1.1 motherboard, when AHCI is enabled, there is an 8 second delay as the AHCI components are initializing during the POST of my machine at every boot. Unfortunately, with AHCI enabled, it costs me 8 seconds at every boot. Any my stopwatch and testing methods show that I'm not really able to gain that 8 seconds back from performance increases with the drive in a few hour period of time.
I did not do any stopwatch measuring using IDE and AHCI, but I did not percieve any diifferences in boot time on my system. Whether that means I had it and did not not notice it or maybe my MSI Pro-E motherboard acts differently I don't know. I assume you installed the OS with AHCI enabled?

Quote   Quote: Originally Posted by pparks1 View Post
Quote   Quote: Originally Posted by Gildor View Post
The benefit is that TRIM is passed along to the SSD only in AHCI mode, so you will not get the advantage of auto TRIM in IDE mode.
From what I have read, this is not true when using the default Windows 7 drivers for TRIM support. I believe this is true with I install the Intel drivers for my SATA controllers according to the Intel website...therefore I just stuck with the Windows drivers and things seem to be just fine.
As an aside, Intel is supposed to be releasing a version of their drivers which do support auto TRIM "real soon now".
My System SpecsSystem Spec
10 Feb 2010   #138
Gildor

 
 

Quote   Quote: Originally Posted by whs View Post
But I am still scouting for the Intel wiper. I found one for OCZ, but I am not sure whether that would work on an Intel. Have to ask the boys on the Intel forum.
Check out the Intel SSD Toolbox. It has an optimizer just for that purpose.
My System SpecsSystem Spec
10 Feb 2010   #139
tw33k

Windows 7 Ultimate (x64) SP1
 
 

Quote   Quote: Originally Posted by pparks1 View Post

However, with my Gigabyte GA-EP45-UD3R Rev 1.1 motherboard, when AHCI is enabled, there is an 8 second delay as the AHCI components are initializing during the POST of my machine at every boot. Unfortunately, with AHCI enabled, it costs me 8 seconds at every boot. Any my stopwatch and testing methods show that I'm not really able to gain that 8 seconds back from performance increases with the drive in a few hour period of time.

Therefore, I leave my box on IDE mode.
That's exactly my position
My System SpecsSystem Spec
10 Feb 2010   #140
nate42nd

Windows 7 Professional x64
 
 

Quote   Quote: Originally Posted by tw33k View Post
Quote   Quote: Originally Posted by pparks1 View Post

However, with my Gigabyte GA-EP45-UD3R Rev 1.1 motherboard, when AHCI is enabled, there is an 8 second delay as the AHCI components are initializing during the POST of my machine at every boot. Unfortunately, with AHCI enabled, it costs me 8 seconds at every boot. Any my stopwatch and testing methods show that I'm not really able to gain that 8 seconds back from performance increases with the drive in a few hour period of time.

Therefore, I leave my box on IDE mode.
That's exactly my position
Not to mention a lot of manufacturers recommend IDE and you will have problems running F/W updates and wiper.exe in AHCI

FYI
My System SpecsSystem Spec
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