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[Official] Samsung SSD750/830/840/850 Owners Club - Page 203

post #2021 of 5733
Quote:
Originally Posted by Luxer View Post

I have the regular 840 120gb and I'm happy with it even though my mobo is a limiting factor I think.



Have the Asus P6X58D-E which does have 2 SATA III 6 gb/s slots, but they are the Marvell and not the regular ones. And because it's on Marvell it doesn't show up on the Intel Rapid Storage Technology software. Still, do you think there's anyway to get around 500mb/s write speed?

Believe me, if there was a way, it would have been figured out by now, as enthusiasts have been dealing with this for years.

The only thing that you might be able to do, as Igor has shown, is raising the clock speed of the SATA buss on your board. That is, if your BIOS has that setting. My ASUS X58 board has this option, whose name I can't remember now of course. You can't increase that clock's speed to much without creating instability elsewhere, just like a memory or CPU OC, but I believe Igor got a SSD on a Marvell chipset like yours over 400MB/s on sequential read.

High sequential read speeds of 500MB/s aren't the main thing that matters about a SSD's performance. The 4K speeds are actually more important, as well as access time.
post #2022 of 5733
I've plug the SSD to SATA 3 on my Gigabyte Z77 D3H motherboard and installed Windows 7 on my Samsung 840 120GB SSD and enabled AHCI in BIOS before installation, I've also installed all the latest drivers, but my results are very low?

post #2023 of 5733
Quote:
Originally Posted by Casterina View Post

I've plug the SSD to SATA 3 on my Gigabyte Z77 D3H motherboard and installed Windows 7 on my Samsung 840 120GB SSD and enabled AHCI in BIOS before installation, I've also installed all the latest drivers, but my results are very low?


That read speed seems spot on, but the write speed seems about half of normal, I think the 120GB version is slower than the 250GB I have, but mine does 248MB/sec sequential write, along with your 4k-threaded, mine is 200MB/sec.
post #2024 of 5733
Quote:
Originally Posted by Phillychuck View Post

Quote:
Originally Posted by Casterina View Post

I've plug the SSD to SATA 3 on my Gigabyte Z77 D3H motherboard and installed Windows 7 on my Samsung 840 120GB SSD and enabled AHCI in BIOS before installation, I've also installed all the latest drivers, but my results are very low?


That read speed seems spot on, but the write speed seems about half of normal, I think the 120GB version is slower than the 250GB I have,
Exactly, it is half as fast in writes...
Quote:
but mine does 248MB/sec sequential write, along with your 4k-threaded, mine is 200MB/sec.
~125MB/s = half of ~250.

~90 = half of ~200...
post #2025 of 5733
How do I get the full write speed of my SSD?
post #2026 of 5733
Quote:
Originally Posted by Casterina View Post

How do I get the full write speed of my SSD?
You already are....
post #2027 of 5733
Quote:
Originally Posted by Sean Webster View Post

You already are....
So my read and write speed are normal on the Samsung 840 120GB SSD?
post #2028 of 5733
One other thing,

do you need Samsung magician software instaled?

I can't disable uac for this software....

acer 5951G - i5 2410M
post #2029 of 5733
Quote:
Originally Posted by Casterina View Post

So my read and write speed are normal on the Samsung 840 120GB SSD?

Yes the 120 isn't overly fast in writes (none of the non pro are)

http://www.newegg.com/Product/Product.aspx?Item=N82E16820147188

Performance
Sustained Sequential Read
530 MB/s
Sustained Sequential Write
130 MB/s
4KB Random Read
Up to 85,000 IOPS
4KB Random Write
Up to 32,000 IOPS
MTBF
1,500,000 hours
post #2030 of 5733
Quote:
Originally Posted by CravinR1 View Post

Yes the 120 isn't overly fast in writes (none of the non pro are)

http://www.newegg.com/Product/Product.aspx?Item=N82E16820147188

Performance
Sustained Sequential Read
530 MB/s
Sustained Sequential Write
130 MB/s
4KB Random Read
Up to 85,000 IOPS
4KB Random Write
Up to 32,000 IOPS
MTBF
1,500,000 hours
I've done a test on my Seagate 1TB 7200RPM HDD and my Seq write speed is faster than the SSD?

Also I bought the Samsung 840 120GB SSD for £80 which is $120, should I went for a different SSD?
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