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Last response: in Storage
December 31, 2011 6:01:39 AM

hey community , i installed the samsung ssd 830 series 256gb in my HP DV7t SE 4100 Notebook computer.
I have confirmed that ACHI , TRIM , NCQ are all enabled, (though i could not confirm AHCI in the bios as those bios options are not available in the HP's INsyde h20 bios) .

However multiple benchmarks with Samsungs Magician software, ATTO , and AS SSD , all show sub quoted read read sequential speeds. samsung quotes 400-500mb/s but i am consistently getting around 220 read and write.

I have contacted samsung and they could not help with the matter. I did a fresh install of windows on the drive before installation. to be fair i'm not sure if the laptop motherboard uses sata3 or sata2, if that even matters, since the drive is backwards compatible.

specs on the SSD drive here, SATA 6Gb/s (Compatible with SATA 3Gb/s and SATA 1.5Gb/s)
Samsung Magician software for SSD management
Samsung Toggle DDR NAND Flash memory
Samsung 3-core MCX Controller
Samsung 256MB DDR2 SDRAM cache memory
Dimension : 100 x 69.85 x 7mm
Weight: 62.5g

Sequential Read: Up to 520MB/s
Sequential Write: Up to 400MB/s
Random Read: Up to 80000 IOPS
Random Write: Up to 36000 IOPS

Any help would be reallllllly appreciated . attached screenshots below.

Best solution

a b Ô Samsung
a c 260 G Storage
December 31, 2011 12:33:24 PM

The SATA controller on the board will affect the speed. Samsung numbers are based on SATA 6GB so what is yours.
a b G Storage
December 31, 2011 1:24:43 PM

Sata II from the looks of it. That would top out at 300MBs, and he's at 250.
Related resources
December 31, 2011 5:58:34 PM

I'm not really sure how to determine if my controller is SATA II or SATA III . How can i do that?
a b Ô Samsung
a c 260 G Storage
December 31, 2011 6:21:23 PM

Most likely SATA2, desktops had to have additional chip for SATA3 support in the same generation.
a b G Storage
December 31, 2011 6:31:05 PM

Run CPUz and look up the motherboard chipset.
December 31, 2011 11:30:18 PM

Best answer selected by wherewolf87.
December 31, 2011 11:31:16 PM

Thank You all! it does seem that my sata controller is the bottle neck here. i looked up the chipset which has 3gb/s speeds. *sigh*