Increase and Speed Up Slow FireWire 1394 Copy and Transfer in Windows XP SP2增加和加快緩慢火線1394拷貝和轉移在Windows XP SP2

If you’re using Microsoft Windows XP SP2 (Service Pack 2) and try to use 1394a or 1394b FireWire devices such as external hard drive, the performance of the FireWire devices are greatly decrease and not optimum.The slowness of FireWire devices especially obvious when you transfer, copy or backup your files and documents in your computer local drives to the FireWire connected external portal disk, or when you transfer and copy your photos from digital camera that uses FireWire connection.如果您使用的是微軟的Windows XP SP2 （ Service Pack 2中） ，並嘗試使用1394a或1394b FireWire設備，如外部硬盤驅動器，其性能的FireWire設備大大減少，而不是optimum.The緩慢的FireWire設備時尤為明顯您技術轉讓，複製或備份您的文件和文件在您的計算機本地驅動器的FireWire連接外部門戶網站上，或當你轉讓和複製你的照片從數碼相機，採用FireWire連接。

Normally Firewire 400 and Firewire 800 devices and drives will operate in the range of 26 to 39 megabytes per second on file copy operations in which termed as S800 and S400 speed.通常情況下火線400和火線800裝置和驅動器將經營範圍為26至39兆字節每秒的文件複製行動，稱為S800和S400速度。 However, if you install Windows XP SP2 or are using Windows XP SP2, the FireWire 1394b ports will be changed to S100 speed, instead of using S400 or S800 speed.然而，如果您安裝Windows XP SP2或正在使用Windows XP SP2中，火線的1394b港口將改為S100速度，而不是使用S400或S800速度。 So if you connect any connect a 1394a or 1394b FireWire 400 or 800 device and external hard disk to a 1394b port, the FireWire devices incorrectly run at S100 or about 100 megabits per second, which is the cause for the slow FireWire transfer rate.所以，如果你連接任何連接1394a或1394b FireWire 400或800設備和外接硬盤到的1394b端口， FireWire設備不運行9000或100兆比特每秒，這是導致緩慢火線傳輸速率。

The resolution to the issue is to install an update for Microsoft Windows XP SP2 KB885222.該決議的問題是安裝微軟Windows XP SP2的KB885222 。 It’sa hotfix released by Microsoft and described in Knowledge Base article這是發布的修補程序，微軟和描述的知識庫文章 KB885222 that corrects this issue.該糾正這個問題。 After installing the patch, restart the computer for it to take effect.在安裝補丁，重新啟動計算機，它才能生效。

If you add a host controller for a new 1394 device to your computer after installing the KB885222 hotfix, you must add or modify the SidSpeed entry in the Windows registry for the new 1394 host controller to 1 of the following value:如果你添加一個主控制器一個新的1394設備到您的計算機上安裝後， KB885222修復程序，您必須添加或修改的SidSpeed進入Windows註冊表中新的1394主控制器，以1以下值：

0 for S100 speed 0 S100速度
1 for S200 speed 1 9100速度
2 for S400 speed (default value) 2 ， S400速度（默認值）
3 for S400/S800 speed (Windows XP Service Pack 1 [SP1] value) 3 S400/S800速度（的Windows XP Service Pack 1 [ SP1的]值）

The steps and instructions to add or modify the SidSpeed registry value are listed on the這些步驟和指示，添加或修改註冊表值SidSpeed列出的 KB885222 Knowledge Base article, with additional information to locate the FireWire controller information necessary to modify the registry value.知識庫文章，更多的信息，找到火線控制器必要的信息，修改註冊表的價值。

IMPORTANT : This is a machine translated page which is provided "as is" without warranty. 重要說明：這是一台機器翻譯網頁這是“原樣”提供，無保修。 Machine translation may be difficult to understand.機器翻譯可能很難理解。 Please refer to請參閱 original English article英文原文的文章 whenever possible.只要有可能。

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