I have a custom built PC with the following components...
Windows Vista Ultimate SP1
Gigabyte GA-965P-S3 (rev. 3.3) BIOS F12
Intel Core2 6600 @ 2.40 GHz
NVIDEA GeForce 8800 GTS
Sony DVD-ROM DDU1621
HL-DT-ST DVD-RAM GSA-H22L
Creative SB Audigy 2
Hauppauge WinTV PVR
Sata Disks connected via AHCI mode:
Seagate ST3320620AS, partitioned into 100GB C: and 200GB D:, Port-00
Samsung HD501LG, E:, Port-01
WDC WD5000KS-00MNB0, F:, Port-04
WDC WD10EACS-32ZJB0, G:, Port-05
The problem is that trying to use this machine for what I built it for - video capture, editing, etc. - is next to impossible as large AVI files tend to cripple the file operations. Here is a specific example... at the root of the G: drive I have a 3.06 AVI file that I want to cut / paste to a folder on the F: drive. As Vista counts down the transfer to 2.70 GB, the data is flying at a wonderful rate of 28MB/s. But then it absolutely grinds to a halt and the speed slowly ticks down from MB/s to bytes/s. I've let this transfer go as long as 20 hours and it never completes.
My disks were originally installed in IDE emulation mode and I thought that might be the problem. But after the successful switch to AHCI the problem remains exactly the same. The copy operation noted above is just one that I can easily, consistently reproduce. The F: and G: drives will occasionally disappear from the system. Most of my USER folders are on the E: drive (Videos are on F:) and when I start the PC for the day, I know that I have to wait for a black screen after the BIOS post because the E: drive will not be active. I have to kill the power and start over and on the 2nd time around the E: drive will fire up and my profile will be found.
I have tried replacing the SATA cables thinking I had some cheapies that were causing the problem, but that changed nothing. At this point I have had to give up doing large file operations on F: and G: as they simply will not respond to the request. I admit I am baffled as to what is causing this inability to work with large files and hope someone is able to help.