Low readings on my new Samsung 840 PRO ssd ?

[sj2606]

Hey Folks

I just bought a new Samsung 840 PRO ssd and when i ran a benchmark test it was disappointing to find the results less than the advertised speeds on the box..

http://img28.imageshack.us/img28/9836/fa5.png

Is this normal?

Thanks

 

[Prey2big]

load one of your CPU cores with something like prime95 while re-running the benchmark.

 

[Hellhammer]

You're running Microsoft's ACHI driver instead of the Intel one. Try installing Intel's Rapid Storage Technology drivers.

 

[beginner99]

Whats your motherboard? Is the drive attached to a native Sata III port or running from an additional marvell SATA III controller? (used to be the case on older motherboards). Those marvel controllers suck and you usually are limited to 300 mb/s sequential.

However in real world usage you won't notice a difference between SATA II and SATA III.

 

[sj2606]

You're running Microsoft's ACHI driver instead of the Intel one. Try installing Intel's Rapid Storage Technology drivers.

Do I need to reinstall the OS on the SSD ? Or is there a way to change this otherwise?

Thanks

 

[sj2606]

Whats your motherboard? Is the drive attached to a native Sata III port or running from an additional marvell SATA III controller? (used to be the case on older motherboards). Those marvel controllers suck and you usually are limited to 300 mb/s sequential.

However in real world usage you won't notice a difference between SATA II and SATA III.

GA-X58A-UD3R Provides newest Marvell SE9128 high speed SATA3 storage interface with superfast 6Gbps link speed

This may be the issue then i guess...

Thanks

 

[gpse]

GA-X58A-UD3R Provides newest Marvell SE9128 high speed SATA3 storage interface with superfast 6Gbps link speed

This may be the issue then i guess...

Thanks

use the Intel SATA 2 slots, in real world you will only notice SATA 2 vs SATA 3 on synthetic sequential benchmarks.

Also download the latest Intel RST drivers, that should help. No need to reinstall windows.
My computer also uses the Intel X-58 chipset, I think the newest intel RST I could install was 11.7.0.1013

 

[beginner99]

GA-X58A-UD3R Provides newest Marvell SE9128 high speed SATA3 storage interface with superfast 6Gbps link speed

This may be the issue then i guess...

Thanks

Your welcome. I bought into the same marketing crap. I also suggest to just use a native intel SATA II port. Those are usually faster in random read and writes and you can disable the marvell controller in bios which give me a several second faster boot.

 

[jiffylube1024]

GA-X58A-UD3R Provides newest Marvell SE9128 high speed SATA3 storage interface with superfast 6Gbps link speed

This may be the issue then i guess...

Thanks

That's your issue. For advertised performance you basically need a newer motherboard with an Intel SATA3 connector. That version of Marvell controller is not so hot.