I have created 2 new volumes on the SSD (Samsung 840 Pro 256GB) from the previous OS installation before re-installing Windows 8 Pro 64 bit on it.
After installation of: Windows, all the latest drivers from the official Acer site for the laptop (Aspire V3 - 771G), doing a
Samsung SSD Magician performance optimization and OS optimization and removing the page file I get these results when running
AS SSD Benchmark:
and the benchmark in magician:
which are very low (about half) compared to the results it should return.
I found on Google 2 benchmarks, both having much better performance (closer to expected as in the product specifications):
Things I have checked/tried/are known:
- connected to a SATA3 port
- AHCI is enabled in BIOS
- TRIM is enabled
- Partition Starting Offset is aligned to a multiple of 4096 for both SSD partitions
- configured and switched to high performance windows power profile
Any ideas what it could be? Or how to diagnose?
I found the problem by looking in Intel Rapid Storage Technology program - the mode used by the SSD is SATA 2:
Any ideas on how to make it work in SATA 3 mode instead of SATA 2?
I am thinking that it might have something to do with the HDD which cannot work at more than SATA2. Maybe, even though the 2 SATA ports are SATA 3 compatible, the main one in which the HDD is connected is faster, or maybe the HDD is limiting the SDD speed cause it has to use SATA2.