A short while ago I bought a 120GB Vertex 3, and installed it in my existing PC (Gigabyte GA-X58A-U3DR) in a 6Gbps port. Using HDTune and AS SSD, I'm getting approximate speeds of 200-220 Read and 90-100 Write. Certainly a little faster than my SATAII striped array, but nowhere new the headline speed of 500Gps R + W. Now, I don't seriously expect to read the headline speeds, but I expected a little better for my money. Drivers for my mobo are up to date and the firmware is fairly recent if not the absolute latest build IIRC. The SSD might be a version behind also, but I don't think I can upgrade it non-destructively. I accept that if all else fails - I might have to update BIOS + Firmware, but in the interim, what can I do to diagnose/investigate this apparent lack of speed?