09-23-2016 12:42 PM
Hi i bought today a sandisk ultra 2 and i realized that my speed are slower than my 2 years old kingston ssd now.My speed is write 348 read 282.I am using a 6 gb/s sata cable on a 6 gbs sata port.What can i do.
Mobo Z97 deluxe asus
Ram 32 gb kingston
Gpu Gigabyte 980 G1
10-20-2016 09:26 PM
I have exactly the same problem as you. Here in the forum are several other people who also have the same issue. I even contacted SanDisk about this, requesting a firmware update as their SanDisk Extreme SSD seems to have had the same issue in the past till they came up with a firmware update for it.
You can see this problem appearing in their firmware release notes:
- Improved compatibility with certain systems where SATA link sometimes negotiated to SATA 2 vs SATA 3.
I personally have the SanDisk Ultra II and a Samsung 850 Pro. My Samsung SSD doesn't have this problem. However every time i restart my computer my SanDisk Ultra II changes from Sata 3 to Sata 2 mode lowering my write and read performance by half.
I already contacted SanDisks support via E-Mail but i don't think they are going to help me as their answers seem automated.
I would really appreciate if someone from their techsupport could dig deeper into this problem and tell us what's going on, otherwise i think we have to return our SSD's to get our cash back.
10-28-2016 03:44 AM
I have had the opposite problem.... I had a Samsung 840 (not EVO, Not Pro) and it slowed down over time... It was as if trim wasn't working.... I did get it to speed up for a whle by copying everything off, erasing everything, and copying it all back....THEN it workes fast (I'm talkiing about the Samsung 840)..... But over time it started slowing down again.... I contacted Samsung and they say it doesn't do that...... but my tests say it does.... This Samsung SSD is now relagated to exterenal USB Drive Use...
That's why I jumped ship and went with SanDisk Ultra II.... I have 4 of them now.. a 960 in Laptop, 2x480's in a Raid 0 array, and a 240 being used as a database cache drive. SO FAR, all is fine!!!