I recently rebuilt my PC and installed Windows 7 Bit on an i3 system with 8GB of ram. The motherboard runs sata2 and I have 4 WD hard disks installed. Windows experience quotes 5.9 for the hard disks and this is based on a 1tb Caviar Green drive which is around 3 years old. I recently purchased a 1 tb Caviar Black drive and copied the image over to the new drive.
Windows experience still quotes 5.9. I have done some simulated performance runs and this new black drive runs at 107MB/sec whereas the old green drive sticks at around 86MB/sec. I assumed that this was probably down to the restrictions of sata2, thus bought a scsi card which provides sata3 support. Having installed the drivers and rerunning the simulated performance runs, I see no speed improvement and windows experience still quotes 5.9. The other 2 older drives are 3200 SE16 drives and have identical speeds of 54.5MB/sec.
What I am trying to establish is whether this is about right for my system? I expected the windows experience figure to rise from 5.9 to probably 6.2 or higher given the 20% speed increase of the black drive over the green one. I had some problems with the sata 3 scsi card installation and am still not 100% sure it is working correctly, even though no problems are reported by windows. Windows BSOD on shutting down when the card is installed in the PCIex4 slot, but does not if installed in the PCIex16 slot where the graphics card normally sits.
I do a lot of image editing and load and save files all the time, thus was wanting to ensure I had improved the disk performance as well as I could without going to the expense of getting solid state drives.
Any clues or pointers would be welcomed. I understand that I might not actually have a problem, it might be just my lack of appreciation for the complexities of all the factors involved.