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Slow SATA II Speed

Hi. I have a 3 years old OEM pc. Until tonight I didn't know the actual speeds of the sata 2. I looked on the internet everybody with SATA 2 drives are getting 50MB/s+. When I copy a file, for example from partition C: to partition D: I get 25MB/s - 28MB/s. I tought it was normal. Why is it so slow? the drive is defragmented every month. I have a Hitachi desktar 320GB sata 2.
In 2 days I'm changing chipsets. from AMD to Intel. maybe that will solve the problem I don't know.
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  1. Best answer
    DJ Monkey said:
    Hi. I have a 3 years old OEM pc. Until tonight I didn't know the actual speeds of the sata 2. I looked on the internet everybody with SATA 2 drives are getting 50MB/s+. When I copy a file, for example from partition C: to partition D: I get 25MB/s - 28MB/s. I tought it was normal. Why is it so slow? the drive is defragmented every month. I have a Hitachi desktar 320GB sata 2.
    In 2 days I'm changing chipsets. from AMD to Intel. maybe that will solve the problem I don't know.


    Partition C to Partition D on the same drive has little to do with the SATA interface. You're asking the drive to both read and write at the same time.
  2. If the partitions are on the same drive that is normal. Transfering between two drives will be faster
  3. ahh.. That makes sense. thank you all ;)
  4. Unless you are copying from one drive to another or using an SSD a mechanical drive HDD will not be very fast at that type of transaction. Your best bet to know if your drive is working up to par is to benchmark it using something like HD tune and comparing that to another drive by the same manufacturer from that drive series made around the same year. The speeds should be similar.

    NOTE: the main issue with a copy/paste action like that is the drive needing to read/reposition/write/reposition/repeat.
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