Evo 840 - Low IOPS on read.

warren_1979

warren_1979

warren_1979

Soldato
Joined
5 Jul 2005
Posts
2,986
Hi.

So I got my first SSD on Sunday and installed Windows 7 Pro on it. My system is Asus m5a97 r2.0, Phenom ii X4, 4 gig RAM, 6670.

I did a fresh install of Windows 7 64 bit and made sure that the SATA port was set to AHCI.

I must say that some of the optimization guides on the net for Windows 7 and SSD's are rather dated. I was reading one that told me to disable cache, which I did and my write speeds fell off a cliff. I thought my drive had buggered up. I quickly enabled it.

What I have done is:

Verified trim
Disabled Hibernation.
Disabled System Restore
Disabled Drive Indexing
Disabled Drive Defragmentation Schedule
Disabled Prefetch and Superfetch in Regedit (I originally did this in Magician but looking in regedit they seemed to be still on)
Disabled Windows Search and Superfetch
Disabled ClearPageFileAtShutdown and LargeSystemCache (These were already disable so maybe Win7 did this automatically)
Set power setting to HIGH and adjusted SSD sleep to NEVER
Pagefile has been left unaltered.

Does the above info look ok or have I gone too far with certain things? I originally just used Magician but decided to uninstall it and do everything manual from net guides, but like I was saying some guides have dated or wrong info.

Here are my results:



Uploaded with ImageShack.us

What do you think? Should I be worried about the low IOPS for read? Is it worth updating my BIOS because I think its a couple of versions old.

Cheers.
 
Last edited:
Thanks Wazza.

I'm pretty sure I'm using the latest chipset drivers from Asus. I will look into updating the BIOS over the next couple of days.

I have also set 15% for over-provisioning which leaves me with 70 gigs of free space. I will never fill 50% of that. I have a 500gig HDD in my new build that just needs connecting up so I will do that tomorrow.
 
AMD Chipset.

I see this quite a lot when using an SSD on non-Intel SATA controllers.

Might be worth enabling RAPID Mode though (if you can).
 
Last edited:
Is it possible to downgrade to the Windows 7 sata controller for better speeds? I think I read that someone that this is possible although I could have read it wrong.
 
It is quite possible that the "default" Microsoft SATA drivers might be "faster" than the AMD ones.

I'm not sure that you really need to be too concerned about your "low" IOPS read score. If your PC is booting up fast (~20s from POST to desktop is what I'd expect), and apps are launching quickly, then I wouldn't worry.

However, I can understand that you might want to make sure you are getting maximum performance from your SSD (even if the real world benefit is minimal). Have you tried benchmarking with any other software ? Samsung Magician might not be reporting accurately.
 
Hi.

Everything is ticking along nicely. I tried RAPID mode but the IOPS were pretty much the same. I think I'll switch it off and save a gig of ram.

I think I will just leave it for the time being. No point in hammering the benchmark as it will just degrade the drive. Maybe there will be a chipset update in the near future.

Thanks for your help.
 
You must log in or register to reply here.
Back
Top Bottom