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Windows 7: ST3750640AS data transfer rate slow

25 Apr 2016   #1

Windows 7 Home Prem 32 bit
ST3750640AS data transfer rate slow

I recently noticed my DELL OPTIPLEX was sluggish in booting up & shutting down. I swapped out the DATA (not system) hard drive for an identical model & it boots fine. So I reconnected the DATA drive to retrieve some data & noticed the data transfer rate was far less than 1 Mb/s. Is this an indicator that the drive is TANKING?

SEAGATE Barricuda 7200.12 750 Gb

Should I try a different SATA port or possibly I inadvertently changed a setting in BIOS to affect the communication rate? Suggestions?

My System SpecsSystem Spec
25 Apr 2016   #2

Windows 7 Home Prem 32 bit

I am checking that my drivers for the disk are up to date. They appear to be. Also, DISK MGR indicates there is no problem, but there must be!

I downloaded SeaTools for Windows | Seagate It did indicate a bad sector. I am attempting repairs. I presume this tool is similar to chkdsk?
My System SpecsSystem Spec

 ST3750640AS data transfer rate slow

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