seagate new but very slow, help me

Hi
i bought a seagate but it's very slow in the beginning of the hard disk

the disk is empty , i have 2 hard disk with different firmware

one is fast
this is slow in the first part of the hard disk
i used hddscan

report

HDDScan Drive Test Report
Model: ST31000528AS
Firmware: CC46
LBA: 1953525168

Report By: HDDScan for Windows version 3.3
Report Date: 12/03/2011 12:06:45


Open Disk
Test : RD-Read


Executing
Block start at 24335616 time 54ms
Block start at 53711616 time 52ms
Paused

please help me
the speed vary from 18mb to 120mb at second continuously

 

help me

start lba 0
end 15491840
block size 256
firmware CC46
test read first screenshot

and
start lba 0
end 15491840
block size 256
firmware CC38
test read

 

Have you inquired about this at the Seagate forums..? Have you tested it using SeaTools for DOS...? Seagate will not honor any test if they are not done with their own diagnostic app...

 

yes i did
but the seatool under dos told me it's perfect

but did you see the graphic ,the disk speed continue to vary in the first part of the hard disk , first 60gb

 

It's likely the firmware. I used to run Seagate drives and found that drives of the same model with different firmware would perform drastically different. Of course they will not allow you to flash your own firmware in most cases. I have had far too many issues with Seagate drives to run them any longer.

 

but did you see a similar behavior ?
fast and slow and again fast and slow ,like the graph, but only around the first 50gb of the hard disk

thanks

 

Does it consistently do this over several trials? Maybe some other process was running in the background during the test...

 

This would have been my next question as well. Firmware could cause that but make sure you have no virus scanner going in the backround when running that.

 

it did always
and the disk is empty , no files