The CRC errors on your seagate and corsair drives indicate that comms errors have been detected between the (normally) motherboard sata controller and the disk, so could indicate a problem with either controller, cable or disk.
There's only 1 error on the seagate, so could be a one-off but suggest you keep an eye on this one to see if more errors occur over time. Run the manufacturer's diagnostics if you want to check the disk out, but I don't think this would be grounds for an RMA.
The corsair ssd seems to have thousands of crc errors, which if hdtune is reporting it correctly indicates a bigger problem. I wouldn't be suprised if windows had dropped the disk to pio mode and giving terrible speeds as a result. Does you windows event log show disk-related errors? Again, as this could be a sata port problem it would be best to prove it's the disk at fault before RMAing (e.g. by moving to a known good sata port and seeing if the count keeps increasing).
The warning on the samsung means that a calibration attempt failed, and could be a sign of a disk problem - as the disk is new I'd run samsung's ESTOOL diagnostics (which should say if the disk is RMAable), and keep an eye out for this value increasing.
Hope this helps - the Acer laptop is still working well by the way!
Seagate Momentus XT 250GB
Corsair Nova 64GB SSD
Samsung F4 This drive is only a few days old?
