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Seagate Momentus 5400.2 120GB Hard Drive
Author: Jason Kohrs
Manufacturer: Seagate
Source: Seagate
Purchase: PriceGrabber
Comment or Question: Post Here
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Seagate Momentus 5400.2 120GB Hard Drive
November 03, 2005

Seagate is one of the premiere names in hard drives for just about all applications, with solutions for personal, business, and enterprise settings. From previous reviews, we are familiar with the performance of some of their desktop hard drives, but what about some of their other products? Instead of looking for bigger and faster, in this review we will take a look at a 2.5" 5400 RPM notebook hard drive... the Seagate Momentus 5400.2 120GB.

The Seagate Momentus 5400.2 120GB drive sports a 2.5" form factor intended for use in a notebook computer, but we have other things in mind for it. Many Mini-ITX systems utilize notebook hard drives in order to save space, allowing an extremely compact system to be created for use as a network appliance, a carputer, or an HTPC.

This drive will be evaluated in a Mini-ITX HTPC system that generates almost zero noise thanks to 100% passive cooling. Silent operation is critical for drives in such a system, and with no cooling available to the drive, they need to operate cool and quiet.

The following features and specifications data was compiled from the Seagate and the ZipZoomFly websites...


Series: Momentus 5400.2
Model Number: ST9120821A
Capacity: 120GB
Speed: 5400 RPM
Cache: 8MB
Seek time: 12.5 ms avg
Average Latency: 5.6ms
Interface: Ultra ATA/100 (ATA-6)
Form Factor: 2.5"
Warranty: Manufacturer Warranty 5 Years

Discs/Heads: 2/4
Bytes per Sector: 512
Logical CHS: 16383/16/63
Recording Method: RLL 0,11

Reliability/Data Integrity:
S.M.A.R.T. capable: Yes
Nonrecoverable Read Errors per Bits Read: 1 per 1014

Power Requirements:
+5 VDC +/-5% (amps typ operating)

Power Management (watts):
Seek: 2.2
Read/Write: 1.9
Idle: 0.8
Standby: 0.28

Operating Temperature (C): 5 to 55
Nonoperating Temperature (C): 70 to -40
Operating Shock (Gs) @ 2 msec: 250
Non Operating Shock (Gs) @ 2 msec: 900
Acoustics,Idle (Bels-typ sound power): 2.4

Height (mm): 9.5
Width (mm): 69.85 >
Depth (mm): 100.2
Weight (kg): 0.1

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