View Full Version : Weird problem with X-25m G2
Does anyone know why my 4k read/write is so much slower than other people with the same drive??? Its a brand new X-25m G2 drive.
I even used HHDErase 3.3 to secure erase the drive when i first benchmarked it. I thought something was wrong with it. But even after a second secure erase, i am still having the same problem.
Its seems as tho my 4K scores are cut in half than what they are supposed to be. AHCI is enabled.
Attachment is the "AS SSD Benchmark Software"
The other is CrystalDiskMark
http://i855.photobucket.com/albums/ab115/bunta7/Untitled.png
What motherboard are you using? I just ran the same benchmark and I hit 24.5/49 for 4k. Heres my Crystal.
http://members.cox.net/tjgjkt/intelcdm.png
Thanks for the reply.
I have a DELL Precision M6400 laptop. AHCI is enabled.
Problem is, my READ/WRITE SPEED are normal. Its my 4K read/write thats 50% slower than the norm. Its weird.
Randyman...
09-22-09, 12:53 AM
What OS did you use to Partition and Format the drive? Using XP Install Media or formatting from within XP won't align the SSD partition correctly when partitioning/formatting the drive for OS installation. Vista and W7 handle partition alignment correctly when partitioning/formatting from within the OS or via the Installation Media.
If you did Partition and Format from Vista or W7 installation media, then I dunno. I does look like you are running Vista or W7, but it is hard to tell which OS you have from the screen shot alone.
:cool:
Mr Alpha
09-22-09, 03:57 AM
The partition alignment issues is only for the Indilix controller. The Intel controller doesn't care what alignment you use.
deathman20
09-22-09, 12:04 PM
Write Back Cache to be turned on to get the added performance if not mistaken.
Write Back Cache to be turned on to get the added performance if not mistaken.
isnt that for RAID5 only?
deathman20
09-22-09, 09:20 PM
No, it's for all RAID.
Its for non raid as well. I know if you have the intel drivers installed its accessed through that menu.
Its for non raid as well. I know if you have the intel drivers installed its accessed through that menu.
yes, i do have intel drivers installed (both chipset and sata controller along with Intel Matrix Storage Manager).
So how exactly do i turn on Write Back Cache?
On a side note, i do remember running the CrystalDisk right after a fresh format (w/HDDerase 3.3). It was the very first thing i did before i even installed anything. So i doubt it has anything to do with it. But tell me how to turn it on anyway..
Thank you for your help...
If you talking about the "Enable Write Caching on this device" under the drive's "policies"... I have it enabled.
But the windows write cache buffer option is unchecked.
HDCHOPPER
09-23-09, 12:49 PM
The partition alignment issues is only for the Indilix controller. The Intel controller doesn't care what alignment you use.
?? Never heard this one .. from where did you read / see this plz?
I believe it's any controller , Vista & W7 both do avalid alignment by default XP doesn't no matter the drive or drive controller....
Mr Alpha
09-23-09, 01:09 PM
?? Never heard this one .. from where did you read / see this plz?TechReport quoted Intel on it in their SSD followup article.
I believe it's any controller , Vista & W7 both do avalid alignment by default XP doesn't no matter the drive or drive controller....As I understand it, it is not that XP would use the correct alignment settings for Intel drives, but that XP's bad alignment doesn't affect the performance of the Intel controller. The performance degradation of misalignment is an Indilix issue. I assume this is because the Intel controller completely ignores the alignment settings and does its own thing instead.
HDCHOPPER
09-23-09, 01:17 PM
Thanks ;)
checking around the intel controller needs alignment also FWIW
Some are saying its probably a "mobile chipset" limitation whcih make sense. I have since found several people with the same problem and they are all on laptops.. hmmmm.
Anyone have a laptop they can bench on?
Well, I benched my vertex on my desktop, its now in my wifes laptop. I can run a test, see what comes up. I know its not the Intel, but should be the same if its a chipset limitation.
Well, I benched my vertex on my desktop, its now in my wifes laptop. I can run a test, see what comes up. I know its not the Intel, but should be the same if its a chipset limitation.
that would be really helpful if you could. But then again, if its the benchmarks are similar, its gonna come down to two different ssd's with two diff controllers on two different laptops.
Bench it anyways, see what comes out. Im pretty confident this is an Intel thing.
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