WD Blue SSHD (WD10J31X) 1TB Review Rev. 2.0

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Testing The WD Blue SSHD, Usable Capacity, Temperature

The Testbed

Processors Intel Core i7-2600K
Motherboard Intel DP67BG
Memory Four Kingmax 2 GB DDR3-1333 modules
Graphics Card NVIDIA GeForce GTX 570
Hard Disk Drives 1 TB WD Blue SSHD (WD10J31X)
1 TB Seagate Laptop SSHD (ST1000UM000)
1 TB WD Blue Slim (WD10SPCX)

1 TB WD Blue (WD10JPVT)
750 GB WD Scorpio Black (WD7500BPKT)
640 GB WD Scorpio Blue (WD6400BEVT)
500 GB WD Blue Slim (WD5000LPVT)

500 GB WD Scorpio Black (WD5000BEKT)
320 GB WD Scorpio Black (WD3200BEKT)
Operating System Microsoft Windows 7 64-bit
Microsoft Windows Vista 32-bit


Testing Methodology

We tested in both Windows 7 and Windows Vista, with the latest updates. We chose to use IO Meter 2008 as well as our “old faithful”, WinBench 99 2.0, with the following tests :

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  • Platter Data Transfer Profile
  • Business Disk WinMark 99
  • High-End Disk WinMark 99
  • Disk Transfer Rate (Beginning)
  • Disk Transfer Rate (End)

Business Disk WinMark 99 is a real-world simulation based on three office application suites – Microsoft Office 97, Lotus SmartSuite and Corel WordPerfect Suite 8, as well as a web browser, Netscape Navigator. They are quite dated, but should still reflect the usage patterns of users in an office environment using such applications. The test runs through a script that keeps multiple applications open, while it performs tasks that switches between those applications and Netscape Navigator. The result is the average transfer rate during the script run.

High-End Disk WinMark 99 is a real-world simulation based on AVS/Express 3.4, FrontPage 98, MicroStation SE, Photoshop 4.0, Premiere 4.2, Sound Forge 4.0 and Visual C++ 5.0. However, it differs by running the applications serially, instead of simultaneously. There are individual results for each application but in this comparison, we will be looking only at the weighted average score, which is the average transfer rate during the tests.

Unfortunately, WinBench 99 is not fully compatible with Microsoft Windows 7, registering a SetFilePointer error in the Disk Access Time test. So, we were not able to obtain any Disk Access Time results.

In addition, it would keep crashing if the hard drive was tested with a single partition. This is likely due to a limit on the size of the partition that is supported by WinBench 99. We came up with a workaround by dividing the hard disk drive into 5 partitions of equal sizes. We then tested each partition individually and averaged the results.


Usable Capacity

The 1 TB WD Blue SSHD (WD10J31X) has an official formatted capacity of 1,000 GB. We checked that out by formatting it in NTFS using Microsoft Windows 7.

WD Blue SSHD (WD10J31X) storage capacity

The actual formatted capacity was 1,000,202,039,296 bytes, which is 202 MB lower than the official storage capacity. With about 125 MB allocated to the NTFS file system, the actual usable capacity remained slightly above 1 TB.


Maximum Surface Temperature

We monitored the surface temperature of seven hard disk drives during their benchmarks. The following chart shows their operating temperature range, from idle to maximum load. Please note that instead of giving you the absolute numbers, we are showing the temperature delta, which is the difference between the actual temperature and the ambient room temperature.

WD Blue SSHD (WD10J31X) temperature

Due to the extra chips and NAND flash memory, the 1 TB WD Blue SSHD has a high idle temperature. It hit a peak case temperature of 23°C above ambient temperature. This can be a concern inside the confines of a laptop case. This drive is designed to run in relatively hot environments, with a peak ambient temperature of 60°C.

Next Page > Transfer Rate Range, Platter Profile, WinBench Test Results


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