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Thread: SOLVED: ZIF slow 30mb/s sequential writes

  1. #1
    Join Date
    Nov 2009

    Default SOLVED: ZIF slow 30mb/s sequential writes

    <table cellspacing=0 cellpadding=4><tbody><tr><td>33Mhz timings</td><td colspan=2>66Mhz timings</td></tr><tr><td><br>
    </td><td rowspan=2>I have seen some Crystaldiskmark benchmarks posted here with < 30MB/s sequential writes which is far less than the > 65MB/s I'd expect with a ProIV ZIF SSD.

    It was by chance I went looking to try to figure out why my 2510P's slave channel was capping sequential writes to < 30MB/s. The cause and software workaround are here, cause summarized below:

    The problem being both the bios setting for the IDE controller and the Windows IDE driver putting the channel into 33Mhz mode, rather than 66Mhz mode, giving this poor write performance. This can be corrected with baredit and set for automatic startup.

    Left: the difference in write performance on a 2510P/Runcore ProIV ZIF SSD when changed from 66Mhz to 33Mhz mode. </td></tr></tbody></table>
    Last edited by nando4; 11-22-2009 at 09:04 PM.
    DIY ViDock O/C HP dualIDA | PLL pinmod | grub2 loader Storage 1.8" ZIF SSDs: ProIV, Photofast V4 | ODD caddy SSD/HDD | e-sata/usb

    Now: 12" HP 2510P U7600@1.6 2GB 64GB ProIV SSD + 500GB.caddy + GTX470/3dmark.vant=P5561 | Win7/64 XP.sp3 Ubuntu9.10
    Now: 14" Compaq CQ41 i5-430M 2.26 4GB 500GB + GTX470@x2/3dmark.vant=P10481 | Win7/64
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