4 Aug

Seagate Momentus 7200.3 320GB (ST9320421AS)

Category: Hardware

I happened to be able to get a couple of the new Seagate Momentus 2.5″ 7200rpm 320GB laptop hard drives from PC Connection.

After a 20-minute upgrade following these instructions for replacing a MacBook Pro hard drive I ran xbench and below are the results, in case anyone cares.

A couple of tips:

  • Don’t get the drives with G-shock if you’re an MBPro user
  • No, there shouldn’t be any jumpers set on the drive.
Xbench Version 1.3
System Version 10.5.4 (9E17)
Physical RAM 4096 MB
Model MacBookPro3,1
Drive Type ST9320421AS

Disk Test: 47.82

Sequential 96.43

Uncached Write 132.57 81.40 MB/sec [4K blocks]

Uncached Write 129.83 73.46 MB/sec [256K blocks]

Uncached Read 51.11 14.96 MB/sec [4K blocks]

Uncached Read 149.98 75.38 MB/sec [256K blocks]

Random 31.79

Uncached Write 10.02 1.06 MB/sec [4K blocks]

Uncached Write 141.06 45.16 MB/sec [256K blocks]

Uncached Read 85.44 0.61 MB/sec [4K blocks]

Uncached Read 138.94 25.78 MB/sec [256K blocks]

Posted Monday, August 4th, 2008 at 3:25 pm
Filed Under Category: Hardware
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7

Responses to “Seagate Momentus 7200.3 320GB (ST9320421AS)”

bob
August 15th, 2008 at 10:22 am

Hey,
Thanks for the post. Glad to know it works.

I was wondering why you suggested not to get G shock.
Also did you notice any battery life differences?

ybakos
August 15th, 2008 at 10:56 am

The MacBook Pro has a built-in “Sudden Motion Sensor” that disengages the drive heads in case of a fall.

http://en.wikipedia.org/wiki/Sudden_Motion_Sensor

Battery life should really be about the same — hard drive usage is the same regardless of storage capacity. As for its power-efficiency itself, I would imagine it to be as good or better than older drives since these are designed for mobile computing.

bob
August 15th, 2008 at 10:26 pm

Oh yea cool, thanks for the help

donnyb
December 10th, 2008 at 5:24 am

Did the drive come with jumpers. I installed the drive but my dumba$$ forgot to look to see if there were jumpers.

ybakos
December 10th, 2008 at 3:32 pm

I had the same question, as the smaller capacity drives I had in the past did have a jumper set. However, if I remember correctly, these 320’s had no jumpers out of the box.

Neil
June 15th, 2009 at 3:13 am

Hi - just discovered this post in a google for “macbook pro ST9320421AS” - turns out you’re Rails developers, too!

How do you determine which drives come with the G-shock? I was going to order a ST9320421AS from Amazon (as seen here; http://www.amazon.co.uk/Seagate-OEM-ST9320421AS-MOMENTUS-Notebook/dp/B001IKKCHW/ref=cm_cr-mr-title) but I’m worried about getting one with G-shock; does it make the drive completely incompatible with an MBP?

Alamia
March 11th, 2010 at 5:50 pm

The MacBook Pro has a built-in “Sudden Motion Sensor” that disengages the drive h4ads in case of a fall.

http://en.wikipedia.org/wiki/Sudden_Motion_Sensor

Battery life should realky be about the same — hard drive usage is the same regardless of storage capacity. As for its power-efficiency itself, I would imagine it to be as good or better than older drives since these are designed for mobile computing.;

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