New high areal density 2-and-3 TB Greens from WD

Viewing page 2 of 5 pages. Previous 1 2 3 4 5 Next


The AHCI-compliant host bus adapter (HBA) card that came with our sample of the WD Green 3TB is a HighPoint Technologies RocketRAID 62X, which goes into a PCI Express slot. This card allows access to the drive's full 3 TB capacity in most cases where the native SATA ports on the motherboard don't.

HighPoint RocketRAID 62X card with two SATA ports is provided with the 3 TB WD Caviar Green.

It is not possible to boot from the WD Green 3TB even with Windows 7 64-bit unless your motherboard is equipped with an EFI that supports a GUID Partition Table (GPT). Windows 7-64 will identify the drive as a GPT type incompatible with the BIOS and prevent installation to it unless your motherboard supports it. This is exactly what happened with our Asus P6X58D Premium motherboard. In another month or two when the boards for Sandy Bridge appear, they will certainly will allow booting from a >2.19 TB drive (if you run a 64-bit Windows).

The idea of using a 3 TB primary boot drive is a little silly, though. In this day and age, it is better practise to install the OS and programs on an SSD of adequate capacity (say 30~120 GB depending on your particular applications) and to use a high capacity drive for data storage.

The above mentioned Asus P6X58D Premium motherboard, in a Windows 7 64-bit system, had no trouble recognizing via its own SATA ports, and using the 3 TB Caviar Green as an additional drive (D, E or what have you) . Full 3 TB recognition varied among the PCs in our lab. Most of the non-64-bit Windows in our lab saw only 2.19 TB in this drive unless it was connected through the HBA card supplied by WD.


Our samples were tested according to our standard hard drive testing methodology. As of mid-2008, we have been conducting most acoustics tests in our own 10~11 dBA anechoic chamber, which results in more accurate, lower SPL readings than before, especially with <20 [email protected] SPL. Our methodology focuses specifically on noise, and great effort is taken to ensure it is comprehensively measured and described. Performance is covered only lightly, for reasons discussed in detail in the methodology article.

Two forms of hard drive noise are measured:

  1. Airborne acoustics
  2. Vibration-induced noise.

These two types of noise impact the subjective perception of hard drive noise differently depending on how and where the drive is mounted.

Both forms of noise are evaluated objectively and subjectively. Airborne acoustics are measured in our anechoic chamber using a lab reference microphone and computer audio measurement system. Measurements are taken at a distance of one meter from the top of the drive using an A-weighted filter. Vibration noise is rated on a scale of 1-10 by comparing against our standard reference drives.

Summary of primary HDD testing tools:

Test System:

A final caveat: As with most reviews, our comments are relevant to the samples we tested. Your sample may not be identical. There are always some sample variances, and manufacturers also make changes without telling everyone.

Ambient conditions at time of testing were 10.5 dBA and 22°C.

Our 3TB Green sample was manufactured in Malaysia in Sept 2010.

The 2TB 3-platter Green sample came from Thailand a month earlier. The label's voltage/current data does not make sense; they are higher than for the 3-TB drive.

This 2TB 4-platter Green sample was also made in Thailand, but a year ago.

Previous 1 2 3 4 5 Next

Storage - Article Index
Help support this site, buy the WD Caviar Green WD20EARS Internal 2TB 3.5‚ÄĚ Hard Drive from one of our affiliate retailers!