New SSD too slow?

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Rafael Mestdag

Rafael Mestdag

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Mar 25, 2014
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I bought an SSD about a week ago and it's a Kingston UV400 with 120GB. It's got about 26% free space right now and when I benchmaked it just now with Crystal Disk Mark it said the SSD is only reading at about 240MB/s(big files) and writing at about 135MB/s(big files) and the 4KB measurement claims my SSD is reading at 27MB/s.

The Kingston software says its 'life remaining' is 100% as well as its 'spare blocks' also 100%. Smart Overview says it's 'Overall: Healthy'. Everything seems to be fine except for those readings on Crystal Disk Mark which seem to be too low for a new SSD.

Windows 7 seems quite quick in comparison to a normal HDD but still I think it's been faster in the beginning.

What's wrong?

Thx in advance for any input!
 
Solution
aligwashington

Checked you MB you are on SATA II so cap speed will be 300 MBps nothing can be done unless you either change MB or get PCIe SATA III controller card all...
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Rafael Mestdag

Rafael Mestdag

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Mar 25, 2014
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This is my rig:

CPU: AMD FX 6300
Video: GTX 1050 2GB
HD: SSD Kingston 120GB + WD 500GB 5400 Rpm + Samsung 1TB SATA II 7200rpm
Motherboard: Gigabyte GA-LMT78-S2
RAM: 8GB RAM DDR3
PSU: 500 Watts

Since my motherboard is from 2012 as well as the processor I'm guessing it's on SATA II, I don't recall seeing SATA III ports on the box.

I don't know whether AHCI is active or not in BIOS, should I enable it or not?
 
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aligwashington

aligwashington

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Oct 11, 2013
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you should be on AHCI to get max performance,you have to reinstall the OS in AHCI mode to make this work right or stay with low performance. also your board is SATA II so max will be 300 MBps regardless unless you use SATA III controller card.
 
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Rafael Mestdag

Rafael Mestdag

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Mar 25, 2014
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But if I pick AHCI mode the system won't even boot up, it shows that error message I said and that's it, I have to revert back to Native IDE.

What's wrong with that?
 
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aligwashington

aligwashington

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you have to reinstall OS through USB or DVD with AHCI enabled "fresh windows installation"
 
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Rafael Mestdag

Rafael Mestdag

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Ok, I was able to enable AHCI in the BIOS but the Crystal Disk Mark reading remained pretty much the same. I guess I'll have to reinstall Windows now.

Thanks guys!
 
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aligwashington

aligwashington

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Oct 11, 2013
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Checked you MB you are on SATA II so cap speed will be 300 MBps nothing can be done unless you either change MB or get PCIe SATA III controller card all cards that can give you full 500Mbps + will be minimum around 40-50$ and its pain to get them fully working and they will slow down your boot speed,Your boot speed should be fast enough now unless you really need max read/write speeds i would not recommend spending more money on a 5 year old rig.
 
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Solution
Rafael Mestdag

Rafael Mestdag

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Mar 25, 2014
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Ok, I've just reistalled Windows and it seems you're right, I need SATA III, there's no way around it and I don't intend to spend about 40-50 bucks on some complicated card with this pc. The 300MB/s cap will have to do for now.
 
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D

dudeman509

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Jan 23, 2015
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There is actually a flag in the registry you can set somewhere, then reboot and enable AHCI rather than completely reinstalling.

The SSD will still make a huge difference even on SATAII. I used 2 of them in SATAII laptops and they felt like completely new computers.
 
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