Kingston ssd V+200 sata3 running like sata2

Discussion in 'Mac mini' started by bludevil84, Nov 12, 2012.

  1. macrumors newbie

    Nov 12, 2012
    i ve installed a kingston V+200 ssd 120gb sata 3 (6.0gbs) on my mac mini mid 2011 that come with a 6gb sata controller.

    followed ifixit step by step...all went smooth....but i cant get the ssd working at the declared speed (450/500 mbs). trim is enabled via trimenabler and connected as only disk to the main flat..but maximum speed is stucked on 145 mbs writing and 195 mbs reading...less then a sata 2 sad.....whats wrong with it?:(
  2. macrumors newbie

    Nov 8, 2012
    Go to the system profiler and ensure that link speed/negotiated speed are both 6gbps. Mine controller speed is rated at 6gbps on my 2nd bay, but its only connecting at 3gbps. Supposedly due to bad shielding, which I have no idea how to fix.
  3. thread starter macrumors newbie

    Nov 12, 2012
    thats what system profiler say about the controller and ssd :

    Intel 6 Series Chipset:

    Fornitore: Intel
    Prodotto: 6 Series Chipset
    Velocità collegamento: 6 Gigabit
    Descrizione: AHCI Version 1.30 Supported

    Capienza: 120,03 GB ( byte)
    Modello: KINGSTON SVP200S37A120G
    Revisione: 502ABBF0
    Numero di serie: 50026B722A0156EB
    Native Command Queuing: Sì
    Lunghezza coda: 32
    Disco estraibile: No
    Unità amovibile: No
    Nome BSD: disk0
    Tipo supporto: Stato solido
    Supporto TRIM: Sì
    Nome slot: Lower
    Tipo mappa partizione: GPT (GUID Partition Table, Tabella di partizione GUID)
    Stato S.M.A.R.T.: Verificato
    Capienza: 209,7 MB (209.715.200 byte)
    Nome BSD: disk0s1
    Contenuto: EFI
    Capienza: 119,17 GB (119.174.365.184 byte)
    Disponibile: 85,85 GB (85.854.932.992 byte)
    Scrivibile: Sì
    File System: Journaled HFS+
    Nome BSD: disk0s2
    Punto di attivazione: /
    Contenuto: Apple_HFS
    UUID Volume: F509E056-92B5-3257-A859-C9CBA8B44FD6
    Recovery HD:
    Capienza: 650 MB (650.002.432 byte)
    Nome BSD: disk0s3
    Contenuto: Apple_Boot
    UUID Volume: 2228B37A-4D52-3E25-AF6D-A1E524FDCBC4
  4. macrumors 6502

    Nov 22, 2005
    Melbourne, Australia
    Well, for starters, it's doing real world reading and writing, not reading and writing of a string of zeroes, which is typically used to calculate the 'ZOMG!!!111 100 gajillion mbps speeds' quoted by SSD manufacturers.

    Everything looks fine in your profile of the disk. Maybe check whether there's a firmware update.
  5. macrumors 68020

    Sep 14, 2012
    Where are you seeing that the drive is supposed to be that fast? I'm looking at it on Newegg and the maximum rated speeds are 300 MB/s read and 190 MB/s write. It's rare to get those maximum speeds with real-world use so your numbers seem close enough that I wouldn't worry about it.
  6. thread starter macrumors newbie

    Nov 12, 2012

    and before i bought it i googled to get info and benchmark results with speed up to 400mbs.....

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