So I am having a weird PROBLEM where my computer would randomly freezes for around 30 second to 1 min. During that 'freeze' time, i can still move my mouse around and click on things but the cursor would just show as busy. After the FROZEN time has passed, all the actions done during the freezing time would processed all at once. I brought out the resource MONITOR and during that freeze time, my CPU seems normal, but my harddrive's highest active time is 100% and not read/writing anydata. I have ran memory test, harddrive test and turns out fine. Also, this happened the second time when i was re-installing windows 7 64bit at the part where i was prompt to enter the product serial and kind of froze and then resume too. (Don't know if this is the same case). Anyway , any help will be appreciated as I have been dealing with this for the past week. Below is what I have done so far but did not helped:

1. RMA the harddrive
2. Change sata ports/cables for harddrive.
3. Set to high-performance in power.
4. Turn off hardddrive sleep/power savings
5. Update the intel chip set.
6. Reinstall win7 in both IDE/ACHI mode.
7. Pray every night.

Below are my computer specs:

WDC Black,1TB,7200rpm,64MB,SATA,6.0Gb/s 3.5"

CORSAIR Vengeance 8GB (2 x 4GB)

Intel Core i5-2500K Sandy Bridge 3.3GHz

OCZ ZX Series 850W Fully-Modular 80PLUS Gold

MSI N560GTX-Ti Hawk GeForce GTX 560 Ti

GIGABYTE GA-Z68X-UD4-B3 LGA 1155 Intel Z68 Quote

Also, this happened the second time when i was re-installing windows 7 64bit at the part where i was prompt to enter the product serial and kind of froze and then resume too