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Adaptec 2940uw Vs 2930u2

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  • Adaptec 2940uw Vs 2930u2

    i want to buy an scsi card and for what i've seen the 2940uw and the 2930u2 are the best i could find (here where i live) for the money i have.
    for the moment i will buy the 2930 for the ulta wide scsi 2 support...

    i would apreciate any comments..
    please

  • #2
    The 2930U2 is I believe a dual-channel 80Mb/s that supports both channels full-tilt in a PCI/64 slot. That gives a total aggregate throughput of 160mb/s, which should not be miscronstrued with the Ultra 160/m which is a single channel at 160mb/s. The 2940UW, only supports 40MB/s at an ultra wide mode. The 2940U2W supports LVD at 80mb/s, and ultra wide at 40mb/s and Ultra Narrow at 20mb/s.

    Either should be good cards, and the 2930U2 does give you more "bang" for the buck...

    Hope this helps...

    Guyver
    Gaming Rig.

    - Gigabyte GA-7N400-Pro
    - AMD Athlon 3200+ XP
    - 1.5GB Dual Channel DDR 433Mhz SDRAM
    - 6.1 Digital Audio
    - Gigabit Lan (Linksys 1032)
    - 4 x 120GB SATA Drives, RAID 0+1 (Striped/Mirrored)
    - Sony DRU-500A DVD/+/-/R/RW
    - Creative 8x DVD-ROM
    - LS120 IDE Floppy
    - Zip 100 IDE
    - PNY Ultra 5900 (256MB)
    - NEC FE950
    - DTT2500 Cambridge Soundworks

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    • #3
      Pelado,

      my only word of caution is that if you put narrow devices on one channel, as i do, is to be sure that the hi-byte is terminated correctly...either by a hi-byte terminator or put a "wide" device at the end of that chain. i run nothing but scsi in my system that i put together. my controller is a symbios(LSI) sym53c896u2, i put hdds on one channel and removable media on the other.

      the ultra2 specs are pin for pin backward compatable with other scsi protocols(..except high voltage differential HVD). good luck!

      chucky

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      • #4
        gracias

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