· Living life! Twice IfIHv2
Have you tried diskfresh to refresh/update the file dates on the EVO? There are several programs out there that do the same thing. Should get you through the firmware update anyway.
I am not sure whats going on either. Its hard to diagnose things like that over the internet, the temp fix for the evo is easy enough, I am interested if your speed is in fact restored after you do this. Let us know and we will go from there and see what we can come with.Originally Posted by ursine
Hi, I haven't tried it. It looks like I will be stuck with the crappy EVO and wait for the firmware update. I do not understand how the poor performance of the Samsung EVO can pass to two other different SSDs or I must have very bad luck Everything I touch it turns into crap.
Secure erase on a normal HDD is fine, the problem is, it writes all 0s or 1s to the entire SSD. Now the problem is, since all the blocks are now marked as WRITTEN, before any new data is written the SSD controller must change the state from WRITTEN to WRITEABLE again, that's what's gonna slow it down drastically and that's what I meant if you don't do the proper way of secure erasing an SSD, you kill itOriginally Posted by ursine
yeah I will never secure erase new or old drive in the future. Painful lesson learnt. I thought it would be safe after reading about people secure erase their SSDs in forums. There should be a warning message in Acronis that secure erase can instantly turn your $160 drive into a door stop.
That makes no sense at all. The data is written as new data when cloning to the new SSD, that would clear up any access speed issues since the data is newly written to the NAND Flash.Originally Posted by ursine
The HD Tune benchmark of the Crucial M500 seems to inherit the performance degradation of the Samsung EVO after cloning. Quick format does not remove the crap in M500 inherited from the Samsung EVO bug. While the benchmark of the Sandisk Extreme Pro remains very flat and consistent, it also suffered from performance degradation in the cloning process. The more I think about, the less it makes sense. It remains a mystery until Samsung is open about the root of the problem.
Sounds like a SSD to avoid. As far as the SSD is concerned, there's no difference between a partial secure erase versus writing an equally large file with zeros in it.
shouldnt be much difference between cloning and a fresh install.Originally Posted by nhc511
Same problem , MX100, after clone from 840 , use Macrium Reflect.
First time, after clone disk: HDtune-bad;
I backup data to a HDD, then delete SDD's partition, HDTune still bad;
Quick format SDD : HDtune line is perfect like origin
Clone disk from HDD to SDD using Acronis True Image, HDTune line is "bad" again
I dont think its related to 840, cause the different of "good" and "bad" HDTune's line is not much as in 840:
- Speed never drop under 200MB/s ( 840 is under 60MB/s)
- CrystalDiskmark and ASSSD score lower by 1% (which is normaly between "new" and "contain data" SSD)
just wonder any one else got this happen? Is there any different result between Clone disk and Install fresh Windows?