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ReadyBoost

I am trying to use a SanDisk Cruzer Micro drive 256MB and ready boost. The flash drive is capable of 13MB/s Write and 15MB/s Read speed, and as far as I knew Windows Vista required the following:
  • The device must be at least 64 MB
  • The device must be USB 2.0
  • It has to be able to read at 3.5 MB/s
  • It has to be able to write at 2.5 MB/s
  • According to my specs, I am well above that. I have an XPS 420 with USB ports in the front and rear. I have tried in the front and rear without success. I cant imagine this system would be USM 1.1....Any suggestions?

      XPS 420

      Core2 Quad Q6600

      3 GB DDR2 667 MHZ

      XFX GeForce 8600GTS 256 MB DDR3

      Raid 0 WD Raptor 150GBx2

      22" Samsung Widscreen

      Windows 7 Ultimate 64 Bit

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      7 Replies
      slowecsl
      Silver

      Re: ReadyBoost

      I'm not familiar with the XPS 420, but is there an option in the bios to change the USB port speed from Fullspeed (1.1) to Highspeed (2.0)?
       
      I know it's an option on our Dell Latitudes and the default is Fullspeed on these systems.
       
      Dell Precision M6300
      Bios A00
      Core 2 Duo T7500 @ 2.2ghz
      4096mb DDR2 @ 667mhz
      NVidia Quadro FX 1600M (8700M GT)
      Hitachi 200gb 7200 rpm HD
      PBDS DVD+RW
      SigmaTel C-Major HD Audio
      Broadcom NetXterme 57xx Gigabit
      Dell 1505 Draft-N WLAN
      Dell TrueMobile Bluetooth 360
      Windows Vista Ultimate 32bit
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      KirkD
      Diamond

      Re: ReadyBoost

      Published read/write speeds for flash drives and memory cards are for sequential R/W of large files. ReadyBoost needs the required speeds for small files. There is a big difference. I had thought that most Flash Drives would be good enough, but... I have a SanDisk 2GB Cruzer, which works OK. Most normal camera memory cards will not work. I found one claimed to be 150X which barely made the cut. A lot of these devices use a mix of fast and slow memory, mostly slow. These will not work. There is a place in Vista Event Viewer which lists the actual results that Vista obtained, but I can't remember where it is.
       
       
      I think I found it again:
       
       
      To find out the R/W speeds, go to the Registry:
       
      HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\EMDMgmt
       
      and then the flash drive to see the speeds. My Cruzer got Read = 3.3 MB/s and Write = 3.8 MB/s, which is about twice the minimum.
       
       
      Dimension 9100, Dual-Boot Win XP / Vista Home Premium, 3.0 GHz P4, 3 GB DDR2 533 MHz RAM, 160 GB SATA II Samsung (XP), 300 GB SATA II Seagate (Vista), 250 GB SimpleTech USB (WD Drive), Nvidia Go 6800 (425/825 MHz - XP, 400/800 MHz - Vista, Vista Driver - 163.75), Dell 1901 UltraSharp FP

      Inspiron E1705, Win Vista Premium, T7200 Core 2 Duo (4MB, 2.0 GHz 667MHz), 2 GB DDR2 677 MHz RAM, 120 GB Samsung HD, Nvidia Go 7900 GS - 156.69 Driver, 17” Sharp UltraSharp TrueLife Wide-Screen WUXGA


      Message Edited by KirkD on 12-11-2007 03:33 PM

      Message Edited by KirkD on 12-11-2007 04:09 PM

      XPS M1530, Win 10 CU Pro 32-bit
      Inspiron E1705, Win 10 CU Pro 32-bit
      Dimension 9100, Win 10 AU Pro 32 bit
      Inspiron 660, Win 10 CU 64 bit
      Inspiron 3668, Win 10 CU 64 bit
      Asus T100 Tablet, Windows 10 CU 32 bit

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      CMB
      Gold

      Re: ReadyBoost

      I went into the registry and it doesnt show me anything I understand...It Says WriteSpeedKBs 0x00000000(0) and ReadSpeedKBs 0x00000024 (36)

      XPS 420

      Core2 Quad Q6600

      3 GB DDR2 667 MHZ

      XFX GeForce 8600GTS 256 MB DDR3

      Raid 0 WD Raptor 150GBx2

      22" Samsung Widscreen

      Windows 7 Ultimate 64 Bit

      0 Kudos
      KirkD
      Diamond

      Re: ReadyBoost

      This means the read speed was only 25 kB/sec, which is very slow. The write speed was not tested as the read was a failure. My USB external hard drive got a 265 kB speed. Sounds like you have a bad drive.

      XPS M1530, Win 10 CU Pro 32-bit
      Inspiron E1705, Win 10 CU Pro 32-bit
      Dimension 9100, Win 10 AU Pro 32 bit
      Inspiron 660, Win 10 CU 64 bit
      Inspiron 3668, Win 10 CU 64 bit
      Asus T100 Tablet, Windows 10 CU 32 bit

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      CMB
      Gold

      Re: ReadyBoost

      I set up my WD MyBook External HD and allowed windows to use 4 GB. It seems to be working, but I dont know if there will be any real noticeable difference. I have 3 GB of RAM.

      XPS 420

      Core2 Quad Q6600

      3 GB DDR2 667 MHZ

      XFX GeForce 8600GTS 256 MB DDR3

      Raid 0 WD Raptor 150GBx2

      22" Samsung Widscreen

      Windows 7 Ultimate 64 Bit

      0 Kudos
      KirkD
      Diamond

      Re: ReadyBoost

      You will not see any improvement; probably will be poorer with ReadyBoost as the system has to write to both the internal and external drives to maintain the cache. And the external drive is slower than the internal where the cache is stored. I saw improvements with 1 and 2 GB RAM using ReadyBoost, but slight degradation in performance with 3 GB. One thing that helps is to set the cache to a fixed amount of space. Set both the minimum and maximum cache size to the same value (say 4096 MB). This will result in less disk thrashing during the boot-up.
       
      Dimension 9100, Dual-Boot Win XP / Vista Home Premium, 3.0 GHz P4, 3 GB DDR2 533 MHz RAM, 160 GB SATA II Samsung (XP), 300 GB SATA II Seagate (Vista), 250 GB SimpleTech USB (WD Drive), Nvidia Go 6800 (425/825 MHz - XP, 400/800 MHz - Vista, Vista Driver - 163.75), Dell 1901 UltraSharp FP

      Inspiron E1705, Win Vista Premium, T7200 Core 2 Duo (4MB, 2.0 GHz 667MHz), 2 GB DDR2 677 MHz RAM, 120 GB Samsung HD, Nvidia Go 7900 GS - 156.69 Driver, 17” Sharp UltraSharp TrueLife Wide-Screen WUXGA

      XPS M1530, Win 10 CU Pro 32-bit
      Inspiron E1705, Win 10 CU Pro 32-bit
      Dimension 9100, Win 10 AU Pro 32 bit
      Inspiron 660, Win 10 CU 64 bit
      Inspiron 3668, Win 10 CU 64 bit
      Asus T100 Tablet, Windows 10 CU 32 bit

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      njs1
      Silver

      Re: ReadyBoost

      I've successfully used a 2 GB Sandisk Cruzer Titanium.  It didn't speed things up, though.  In fact, I think it slowed things down very slightly.  These things are only useful at speeding things up if you don't have enough RAM installed (like if you only have 1 GB of RAM), then they might really make a noticeable improvement.
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