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Slow write speed for SSD?

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January 18, 2012 2:37:14 AM



Is this ok for a SSD? Or does it look a little bit slow? Is there anyway to speed it up?



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a c 532 G Storage
January 18, 2012 2:44:29 AM

"pciide - BAD" means that you are in IDE mode. The port your drive is connected to should be in AHCI mode for improved performance.
January 18, 2012 2:52:19 AM

Dereck47 said:
"pciide - BAD" means that you are in IDE mode. The port your drive is connected to should be in AHCI mode for improved performance.



how do i change that?
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a c 532 G Storage
January 18, 2012 2:59:11 AM

What motherboard model do you have?
January 18, 2012 4:27:05 AM

Dereck47 said:
What motherboard model do you have?



ASUS M4A88TD-V EVO/USB3 - AMD 880G - Socket AM3 - PCI-E 2.0 (x16)
January 18, 2012 4:33:37 AM

Its now in AHCI mode

its the same!
January 18, 2012 5:03:45 AM

The write speeds have improved slightly; don't expect an enormous jump from switching to AHCI (although I might have hoped for a slightly higher result :/  ). From what I can see you have a Kingston SSDNow V100 128GB SSD? It's listed as 250 Read/230 Write, so your read speeds are fine but your write speeds are low.

It looks like the latest firmware is installed (firmware version D110225a); do you have TRIM enabled?
January 18, 2012 5:21:52 AM

PurpleHayes said:
The write speeds have improved slightly; don't expect an enormous jump from switching to AHCI (although I might have hoped for a slightly higher result :/  ). From what I can see you have a Kingston SSDNow V100 128GB SSD? It's listed as 250 Read/230 Write, so your read speeds are fine but your write speeds are low.

It looks like the latest firmware is installed (firmware version D110225a); do you have TRIM enabled?



i not sure about TRIM, can you help me find out?
February 23, 2012 3:58:10 PM

Hey. I have the same SSD - Kingston SSDNow V100 128GB with the latest firmware also and I'm having the same problem with the write speed:
http://dl.dropbox.com/u/3002908/V100_CrystalDiskMark.jp...
http://dl.dropbox.com/u/3002908/V100_AS.jpg

I have sent my unit to the retailer I bought it from and they said they have tested it with AIDA64 and both read and write speeds are 200+ MB/s.

I also spoke to Kingston Tech Support and they said my unit may be faulty. They also said I should run ATTO disk benchmark when I get my SSD back from the reseller warranty guys.

Can you run ATTO also and see what you get? I've seen on some forum just now, someone had run all these 3 benchmarks and had the same write speed issues, but ATTO reported the normal (close to advertised) write speeds.
a c 353 G Storage
February 23, 2012 5:05:48 PM

ATTO uses data that is readily compressable. While this is what most manuf list as Advertized" performance, it is not realistic and does not represent real life usage performance.
A good example is the Agillity 3, great with ATTO, but run it on a benchmark that uses non compressable data and the Sequencial performance dropps considerably (AS SSD uses compressed data. (true for most SF22xx based controller using non-sync chips)
Real life for a OS + Program drive performance is closer tied to benchmark using compressed data. OS + program files overall are closer to, but not tollaly, uncompressable.
February 23, 2012 5:39:41 PM

I know compressible vs uncompressible data yields different results, but on SandForce controllers mostly, right? The Kingston V100 has a JMicron controller.
!