I have a WD Caviar Black 640gb internal SATA HDD which is my second hdd. My windows drive is a SSD. The WD has become quite slow since installing to my new system, especially when i play games that are installed in this hard drive. loading time is relatively high. also, often mid-game loading happens(during NFS!) along with stuttering (during Transformers). I have turned off indexing, checked for errors but there was none. crystaldiskmark 500mb test shows seq=93/89 512k=45/67 4k=.712/1.872 4kqd32=2.114/1.93. SMART results showed no issues either. I have changed the SATA port and the cable, defraged, error checked. no issues were found. Recently the system started to hang often when playing a game (NFS The RUN) which is installed in this drive (particularly during loading). the frequency of that has increased since changing the sata cable. I keep the AV turned off during gaming.
I used to use the hard drive in my old pc. it had 3 partitions- 2 ntfs (1 for windows) and 1 for linux. Now it has 1 NTFS partition (598gb) with 107GB of data. The access mode is AHCI. my current system is:
AMD FX 4170 Black Edition
16gb G.Skill Ripjaws 2 x 8GB
Kingston HyperX 120gb SSD (windows drive)
WD 640GB Caviar Black
Buffalo 3TB USB 3.0 External Drive
XFX 7850 DD
Seasonic 640Watt 80+ Gold
Any help will be much appreciated.