I'm having some issues with my new 840 pro. It doesn't seem to be getting close to some of the benchmarks on the site, and the 4k qd32 is really low. AHCI is set in bios and in windows registry. Trim is on. HELP
Asrock 890fx Deluxe 3 (it's NOT plugged into marvel sata plugs) Up to date Bios
this board does have sata 3 6.0gbs
16gb Corsair Vengeance 1600
xfx dd 6790
840 pro 128 (OS) (firmware is up to date)
2 WD 250gb storage
Corsair 650w psu
LG optical drive
windows 7 home prem
If you are comparing to the benches on Tom's they were done with a 512MB drive. SSD's often show much better performance at greater capacities. They're rarely ship low capacity test sample for that reason.
Notice the performance versus queue size. If your benchmark has a small queue depth, then your results are actually pretty normal.
Overall, I wouldn't worry about synthetic benchmarks too much.
So long as your drive is performing well things should be alright.
If you're really focused on the benchmarks though, you can try this:
- Update the firmware
- Do a secure erase
- Verify the best block size for your needs
- Optimize with Samsung Magician (although this can skew some settings if you have HDDs as well)
- Benchmark again
- If results are the same, check around with other 128gb 840 Pro owners to see if they receive similiar results to rule out any hardware issues.
I dont want to thrash AMD, 430/340 R/W is really decent for AMD southbridges, AMD 7xx series boards did around 200 MB/S max on SATA III ports, so you should be happy with your result, old Intel ICHxR beats AMD 7xx series by far, even that it is only SATA II