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What's limiting my SSD?


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#1 ramzorz

ramzorz

    Neowinian

  • Joined: 07-September 09

Posted 07 December 2012 - 07:20

So I just upgraded my SSD to a larger capacity one. It works smoothly, but for some reason, I'm getting less than half of it's potential speed.

I'm using a SATA II interface with the drive which is SATA III, but the drive only does around ~540 read/write. I don't know what else could be bottlenecking the drive; could the interface affect speeds that much?


Here's the drive I purchased... http://www.newegg.co...N82E16820226237

And here are my tests using Roadkil's Disk Speed...
Posted Image


#2 Shane Nokes

Shane Nokes

    Neowinian Senior

  • Joined: 29-July 12

Posted 07 December 2012 - 07:28

For SATA II that looks about right.

Remember the drive is being limited by the interface.

The max speed for SATA II is 3Gbps. Counting in overhead and such that looks close to correct.

#3 OP ramzorz

ramzorz

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  • Joined: 07-September 09

Posted 07 December 2012 - 07:30

I just retested the drive. Similar results. Is there any tweaks I can do to the computer and make it a bit quicker without changing hardware?

#4 Shane Nokes

Shane Nokes

    Neowinian Senior

  • Joined: 29-July 12

Posted 07 December 2012 - 07:31

As I said. The max speed possible would be 3Gbit, once you count in transport overhead and such the speed looks right for a SATA II controller.

The only way to make it faster would be having a SATA III controller.

#5 OP ramzorz

ramzorz

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  • Joined: 07-September 09

Posted 07 December 2012 - 07:38

Welp, looks like there's nothing I can do. Thanks for the info!

#6 Shane Nokes

Shane Nokes

    Neowinian Senior

  • Joined: 29-July 12

Posted 07 December 2012 - 07:52

No problem. :)

It is still way faster than the good old platter based tech. :)

#7 LUTZIFER

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Posted 07 December 2012 - 08:34

I just retested the drive. Similar results. Is there any tweaks I can do to the computer and make it a bit quicker without changing hardware?

Type... SSD Tweaks on Google,

#8 +Lighthalzen

Lighthalzen

    GNT-0000 00 Qan[T]

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Posted 07 December 2012 - 08:39

Yeah, you pretty much max out the bandwidth for your SATA II. You can always try to get an Add-on card for SATA III if those exists now.

#9 WaveZero

WaveZero

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Posted 07 December 2012 - 08:45

Another option is use a PCI express slot for your SSD. Just buy one of those PCI express SATA III card. I believe those work just fine.

#10 Shane Nokes

Shane Nokes

    Neowinian Senior

  • Joined: 29-July 12

Posted 07 December 2012 - 08:54

Type... SSD Tweaks on Google,


No amount of tweaking in the world will get around a hardware limitation. You can only go as fast as the controller allows.

#11 OP ramzorz

ramzorz

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  • Joined: 07-September 09

Posted 08 December 2012 - 03:12

I could potentially make this a few megabytes faster with some tweaks to the interface's limit. It's not like 216MB is SATA II's threshold. And I've thought about buying a SATA III PCI expansion. They're relatively cheap I assume. Off to Newegg!

#12 FlintyV

FlintyV

    Neowinian Senior

  • Joined: 14-December 06
  • Location: Great Britain

Posted 08 December 2012 - 03:16

Can't say I've heard much good about SATA 3 PCIE cards.

When I was buying a SSD for my SATA2 Mobo, people just said the cards introduced latency to the SSD .

#13 OP ramzorz

ramzorz

    Neowinian

  • Joined: 07-September 09

Posted 08 December 2012 - 03:19

Can't say I've heard much good about SATA 3 PCIE cards.

When I was buying a SSD for my SATA2 Mobo, people just said the cards introduced latency to the SSD .


Yup, just looked at some online and they all have mixed reviews. Either the speeds aren't fast enough, or they aren't recognized by their OS. I suppose I'll just wait to upgrade. I imagine I'll be using this SSD further into the future, even if it's in a RAID configuration.