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Windows 7: External eSata HDD works at low speed..


17 Sep 2010   #1

windows 7
 
 
External eSata HDD works at low speed..

Hi Guys.

I need some advices regarding my external eSata drive. It runs at very low speed (50 MB/s) its only a 400 Mbit/s. As I know it should run at 3000 Mbit/s. Can someone help me with that...?

Thanx a lot

PS: I have Asus P5Q3 Delux motherB with external eSata port.

My System SpecsSystem Spec
.

17 Sep 2010   #2

Windows 7 Ultimate x64
 
 

I think you may have set your expectations just a bit too high. 3Gbps would work out to nearly 375MB/s with no overhead.

Number 1: if this is a standard mechanical hard drive....the fastest possible speed you will get is around 120MB/s...which would be around 1000Mbit/sec. Since the drive cannot go any faster than this, the actual speed of the interface is irrelevant.

Next: if you are copying lots of smaller files, you will notice that it slows down quite a bit. You are only going to hit max speed when copying 1 single large file.

My experience shows that eSATA usually runs about 2-3x as fast as USB 2.0. So, around 50-90MB tops.
My System SpecsSystem Spec
18 Sep 2010   #3

windows 7
 
 

Quote   Quote: Originally Posted by pparks1 View Post
I think you may have set your expectations just a bit too high. 3Gbps would work out to nearly 375MB/s with no overhead.

Number 1: if this is a standard mechanical hard drive....the fastest possible speed you will get is around 120MB/s...which would be around 1000Mbit/sec. Since the drive cannot go any faster than this, the actual speed of the interface is irrelevant.

Next: if you are copying lots of smaller files, you will notice that it slows down quite a bit. You are only going to hit max speed when copying 1 single large file.

My experience shows that eSATA usually runs about 2-3x as fast as USB 2.0. So, around 50-90MB tops.
Thanx a lot..
My System SpecsSystem Spec
.


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 External eSata HDD works at low speed..




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