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Scott Mueller's Upgrading and Repairing PCs Forum • View topic - Recommended SSD for SATA III
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 Post subject: Recommended SSD for SATA III
 Post Posted: Tue Apr 16, 2013 6:40 pm 
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Scott, I just recently watched the video portion of URPCs 21st about SSDs vs. HDDs which made me think...what specific SSDs are you currently recommending given the rapid developments in solid state storage?

I assume you are still recommending MLC over TLC and that SLC is still too costly for an everyday machine that isn't a server. Also, I'm looking for SATA III support and it would be for a Windows 7 Pro machine.

Evan


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 Post subject: Re: Recommended SSD for SATA III
 Post Posted: Wed Apr 17, 2013 3:44 pm 
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 Post subject: Re: Recommended SSD for SATA III
 Post Posted: Wed Apr 17, 2013 5:03 pm 
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 Post subject: Re: Recommended SSD for SATA III
 Post Posted: Wed Apr 17, 2013 7:42 pm 
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Oops! I amended my recommendation list to specifically include only 6Gbps drives. Scott.


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 Post subject: Re: Recommended SSD for SATA III
 Post Posted: Wed Apr 17, 2013 9:11 pm 
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I know more storage is better, especially with a SSD (garbage collection, trim, wear leveling, etc...), but do you recommend going with a 120GB over a 256GB if I want to save "roughly" $100?

Evan


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 Post subject: Re: Recommended SSD for SATA III
 Post Posted: Wed Apr 17, 2013 9:17 pm 
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If your current needs are less than 50% to *maybe* 75% of the total capacity, then sure. Scott.


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 Post subject: Re: Recommended SSD for SATA III
 Post Posted: Fri Apr 19, 2013 1:41 pm 
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Which ones of those have random read/write access that exceeds the the SATA 6Gbps interface?

Evan


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 Post subject: Re: Recommended SSD for SATA III
 Post Posted: Fri Apr 19, 2013 2:08 pm 
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My bad. I meant SATA Revision 3.x or SATA 6Gb/s.

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 Post subject: Re: Recommended SSD for SATA III
 Post Posted: Fri Apr 19, 2013 2:19 pm 
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Drives supporting SATA 3Gb/s are limited to a transfer rate of 300MB/s, while drives supporting SATA 6Gb/s are similarly limited to 600MB/s. You won't see drives faster than that until a faster interface is available. That faster interface is called and is coming in the . SATA Express will allow for transfer rates of up to nearly 2,000MB/s, which is more than 3x faster than the 600MB/s limit imposed by SATA 6Gb/s. Scott.

PS: I cover SATA Express and other new related topics like NVMe, mSATA and eSATAp in the new .


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 Post subject: Re: Recommended SSD for SATA III
 Post Posted: Fri Apr 19, 2013 3:17 pm 
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I was looking for a conversion formula for IOPS. . Using MBps = (R*4)/4 where "R" is 4KB Random Write it looks like 90,000 IOPS convert roughly to 352MB/s.

I was looking specifically at this and it's lowest throughput. So it looks like currently no SSD or HDD in the consumer market is exceeding the SATA 6Gb/s transfer rate for Random 4KB read/writes.

Did I get that right?


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 Post subject: Re: Recommended SSD for SATA III
 Post Posted: Fri Apr 19, 2013 3:39 pm 
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 Post subject: Re: Recommended SSD for SATA III
 Post Posted: Fri Apr 19, 2013 3:51 pm 
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 Post subject: Re: Recommended SSD for SATA III
 Post Posted: Wed May 01, 2013 5:15 pm 
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I picked up one of the Samsung drives and tried swapping out the HDD. I've booted to Windows 7 Pro Disc w/SP1 (ISO from MS) and the drive isn't detected. I've changed the BIOS to use AHCI (originally on RAID) but at the point where I try to do a clean install, the SSD doesn't show up at all and I'm asked to provide drivers. I thought Windows 7 ISOs came with drivers for SATA but I even tried downloading drivers from Intel. Any idea what I'm missing?

Evan


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 Post subject: Re: Recommended SSD for SATA III
 Post Posted: Wed May 01, 2013 6:04 pm 
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First make sure that you are attaching the SSD to one of the two Intel 6Gbps SATA ports in the system. Do not attach it to any other ports.

Then I would verify that the correct drivers are being installed by setting the host adapter to RAID or AHCI mode, then reinstall the original HDD, boot from the Windows installation disc, then try to start the install. If the drive is detected then the proper drivers are on the disc. If not, then have the latest drivers on a flash drive and load those drivers during the install. If the drives are detected, then the correct drivers are present.

With the same AHCI or RAID setting, then try installing to the SSD (attached to one of the two Intel 6Gbps ports). If the HDD was detected but the SSD is not, then that means the SSD is either defective or somehow incompatible with your system (unlikely). Try installing the SSD as a secondary drive in the same system to see if it works. If not then the drive is probably defective. Let me know what you find out. Scott.


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 Post subject: Re: Recommended SSD for SATA III
 Post Posted: Thu May 02, 2013 11:28 am 
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I got it installed. I had to remove the rubber bumpers added to the HDD in the E6x30 series. with some pictures comparing the the E6x30 to the E6x20 series where you can see the rubber bumpers.

The SSD was physically smaller than the initial HDD so I used the bumpers but those actually kept the drive from making a solid connection. Once I removed them, it hooked up just fine to the SATA port the HDD was using. Kept the setting in the BIOS as RAID. I remember some post you made recommending using the Intel RAID chipset option over the AHCI, even if you have 1 drive, but I don't remember what it was.

Evan


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 Post subject: Re: Recommended SSD for SATA III
 Post Posted: Thu May 02, 2013 12:00 pm 
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Interesting, even though this topic is in the Laptop section I had assumed this was going into a desktop system, on a laptop I would not normally recommend using RAID. But even if you never use RAID the system will still function the same as if you set AHCI mode. Scott.


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 Post subject: Re: Recommended SSD for SATA III
 Post Posted: Thu May 02, 2013 3:54 pm 
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 Post subject: Re: Recommended SSD for SATA III
 Post Posted: Thu May 02, 2013 4:36 pm 
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 Post subject: Re: Recommended SSD for SATA III
 Post Posted: Thu May 02, 2013 8:04 pm 
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Definitely a major improvement. Do you have any specific tweaks you recommend when using a SSD? For instance "Turn off Windows write-cache buffer flushing on the device" under the drive properties (I don't think that one makes a big difference but wanted to check).

Evan


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 Post subject: Re: Recommended SSD for SATA III
 Post Posted: Thu May 02, 2013 9:53 pm 
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Windows 7 automatically disables Defrag and . However for XP and Vista you will need to do both of these things manually. In addition, for Trim support under XP/Vista you will need a utility provided by either the drive mfr. (such as Intel or Samsung) or a 3rd party.

Finally, for XP I recommend (I do this on all XP systems whether I am using SSDs or not). You don't need to do this under 7/Vista, as the system wide disablelastaccess setting is .


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 Post subject: Re: Recommended SSD for SATA III
 Post Posted: Thu May 02, 2013 10:39 pm 
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Thanks for the lesson on last access time, I hadn't read that before.

Since this is a fresh install on a Windows 7 machine, do you have any recommendations to eek out any additional performance?

What's your opinion now on "Turn off Windows write-cache buffer flushing on the device" with Windows 7, SSDs, and both used together? The post that makes me wonder about this is a .

Evan


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 Post subject: Re: Recommended SSD for SATA III
 Post Posted: Thu May 02, 2013 10:52 pm 
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