The 10TB WD Red (WD100EFAX) Hard Disk Drive Review

Page 3 : Under The PCB, Testing The 10TB WD Red NAS Drive

What’s Under The PCB?

Western Digital has a penchant for keeping all surface-mounted components on the reverse side of the PCB – to prevent static damage and to allow for better cooling. The PCB is protected by a thin foam cutout on the chassis side, with a thermal pad to help transfer heat from the HDD controller to the hard disk drive chassis.

Unfortunately, we can’t make out the hard disk drive controller Western Digital used, but we can see that it uses the ST Microelectronics L7232 motor drive controller, which features their proprietary Smooth Drive pseudo-sinusoidal digital drive technology.

The 10TB WD Red (WD100EFAX) NAS drive boasts a large 256 MB SDRAM cache, courtesy of an EtronTech EM6GD16EWXC-12H chip. This is a DDR3-1600 SDRAM chip with 8 memory banks and timings of 11-11-11. This gives it a peak transfer rate of 400 MB/s.

Finally, the 10TB WD Red (WD100EFAX) NAS drive has two shock sensors that allow it to better detect shock and vibration events, and dynamically adjust the flying height of the read/write heads to avoid head crashes.

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Testing The 10TB WD Red NAS Drive

Processors Intel Core i7-2600K
Motherboard Intel DP67BG
Memory Four Kingmax 2 GB DDR3-1333 modules
Graphics Card NVIDIA GeForce GTX 1060
Hard Disk Drives 10 TB Western Digital Red
8 TB Western Digital Gold
6 TB Western Digital Black
6 TB Western Digital Red
6 TB Western Digital Green

4 TB Western Digital Red Pro
4 TB Western Digital Re
4 TB Western Digital Black Gen. 2

4 TB Western Digital Red

3 TB Western Digital Red
Operating System Microsoft Windows 7 64-bit
Microsoft Windows Vista 32-bit

 

Testing Methodology

Next Page > Usable Capacity, Platter Profile, Operating Temperature

 

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