Samsung SSD Magician help

[CheezeMcSqueeze]

I recently ran the Samsung SSD Magician 4.6 in order to update my firmware and test performance. Initially it reported that my SSD is connected through a SATA 3Gb/s (SATA2) port and the performance tests were pretty low. But after I allowed it to update the firmware it reported that its now connected to SATA3 6Gb/s and the performance tests I ran proved it, the speeds were double. So all was well and good, but then about a week later I opened up the magician and its back to saying I'm connected to SATA2 and the performance test is resulting in the older poor results that I had before the firmware update (see pic of performance results history) How can this happen and how do I get it back to saying its connected to SATA3 with the great test results? At no point did I connect or disconnect it to any different ports. That temp speed increase was noticeable while it was working. How can the performance increase so much, and then it all go away when I didn't do anything to it?

 

[Palorim12]

What's your motherboard?

 

[CheezeMcSqueeze]

What's your motherboard?

EVGA Z87 Stinger Motherboard
Win 10 64bit
Intel i7 4770K 3.5GHz
16GB Ram
Samsung SSD 840 Pro
NVidia GTX 780
After further testing I'm more confused now then ever. First I unplugged my hd from the sata power cable that was being shared with my ssd (there's room for 4 devices on one cable) The results were good again until I tested it a while later and all the test results were back down at half the expected speeds. Although the magician is reporting that I'm now connected to a sata3 cable, its very unpredictable with the speed results. After a reboot the speed results are very high again but shortly thereafter all the results suddenly dropped to half again. I originally thought it was from having the hd connected to the same sata power 15pin cable, but even with my hd disconnected the ssd results are unpredictable. If its a problem with a cable then why would the speed results be at the max one moment and then at half of that another moment? I've ran the test a bunch of times since last reboot and now its resulting in only the high speeds, but I didn't do anything! Why did it keep dropping to half after running for a while and its not happening now? I was thinking the magician test results were just wrong but I can clearly see the performance boost when its working right. I can only assume its a faulty cable (not the 15pin power sata cable but the other smaller one connected to the motherboard) Or is my ssd malfunctioning? Any help or advice would be much appreciated.

 

[mad-max79]

Try other SATA cable.

 

[CheezeMcSqueeze]

Try other SATA cable.

Hi, so I bought another SATA3 cable and for some reason it didn't work at all with my ssd, and yes it was plugged in properly. I bought this one, any idea why it didn't work?
http://www.newegg.ca/Product/Product.aspx?Item=N82E16812123111
I bought this because the Samsung Magician was again reporting that I was plugged in to a SATA2 port and there were slow speed results. I'm back to using the same problem cable, its an ASUS SATA3 cable that came with the build from NCIX. I tried switching the plugs around this time, don't know how long until it starts failing again. Thanks for any help with this