Samsung HM640JJ 640GB 7200rpm 2.5" Hard Drive (9.5 mm standard height)

Discussion in 'Hardware Components and Aftermarket Upgrades' started by Phil, Oct 15, 2010.

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  1. Phil

    Phil Retired

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    Have you found a review that compares both in real world scenario's? I haven't.

    The only real world data I do have is the AS-SSD file copy benchmark, where the Samsung HM640JJ beats the WD5000BEKT.

    I expect the WD5000BEKT will only be faster during heavy multi tasking but I don't have any data for it.

    At those prices I'd go for the Samsung.
     
  2. rokas

    rokas Newbie

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    I found a quick benchmark review here:

    TREADLAYERS.COM: MEGA-CAPACITY 2.5" HDDs: WD10TPVT, SAMSUNG HM640LI and HM100UI

    The disk has been benchmarked in crystal disk mark 3.0 and atto disk benchmark.

    ========================

    I got this HDD on monday and I am not impressed. I guess it has some mechanical problems.

    HD Tune's SMART reports a warning on the calibration retry count attribute - the DATA value is constantly rising - at the moment it is @ 465...

    Also there is a warning at UltraDMA CRc error count - the DATa value shows 64 and reallocated sectors count is 10.

    The weird thing are the reports of other SMART utilities I tried:

    crystal disk info showed problems with reallocated sectors count only but the warning disappeared during the day. Hard disk sentinel, Disk Checkup, Active SMART, Personal SMART Check DID NOT show any problems.


    HD Tune shows abnormal spikes during the whole reading benchmark (it shows up even if shortstroked to 160GB). No smooth reading line there, as shown in the very first picture of this thread, I am wondering.

    I tried the disk in an external eSATA enclosure, in a notebook (dell xps m1530) and on a desktop. always the same story.

    When I tried the writing benchmark there was bettering in terms of smoothness but the speed was nowhere near 100MB/s at the beginning of the platter...

    Could this be a firmware thing? My firmware is 2AK10001. Production date 2010.09.

    I will try to return the disk and ask for a new one.
     

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  3. Forge

    Forge Super Stylin'

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    I think we have proof that HDTune doesn't like the HM660JJ
     

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  4. M1r4ge

    M1r4ge Notebook Enthusiast

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  5. waleed786

    waleed786 Notebook Evangelist

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    Aren't these the drives that come standard in the new Dell XPS notebooks? Except they have the 500gb version
     
  6. Charles P. Jefferies

    Charles P. Jefferies TG Lead Moderator Super Moderator

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    If you see a "640GB 7200RPM" option then it is indeed the Samsung drive; no other hard drive brand has one.
     
  7. lentak

    lentak Newbie

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    hi there, i have bought hm640jj and put into notebook hp 6710b. i have installed new ms xp sp3 but not in ahci mode (sata native). now i am not able to install neither intel matrix... nor ahci driver due to incompatibility (???) problems.
    have done hdtunepro benchmark and here is result:
    [​IMG]
    is this due to non ahci mode? or something else is wrong?
    thanks
    marian
     
  8. Charles P. Jefferies

    Charles P. Jefferies TG Lead Moderator Super Moderator

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    Marian -- those results indicate something else is taking up the disk I/O while HD Tune is running. What kind of antivirus program do you have and what other programs are running in the background?
     
  9. beastyben1

    beastyben1 Notebook Enthusiast

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    Finally got around to comparing my HM640JJ to my old Seagate 5400rpm 8mb drive that came standard in the E6400. The Samsung is on the left, I cut the partition size down.

    [​IMG]
     
  10. lentak

    lentak Newbie

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    thanks for reply.
    i have avira but same if disabled. i have disabled also tuneup utilities.
    also tried hd tune pro in mini windows xp (hirens bootable cd) and same result.
    are there any similar utilities under dos? to avoid anything in backround.
    maybe hdd is not ok?

    edit: i have benchmarked also with sysinternals process monitor turned on (showing only file system activity) and only hd tune pro operations have been logged.
     
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