作者: lfdjssz 时间: 2005-10-20 18:27 能不能作个介绍呀?作者: Michael 时间: 2005-10-20 19:07 不知道,也懒的搜了,反正是dos下某种存储设备的driver作者: zdq789 时间: 2005-10-20 22:02 Why XDMA? Because DOS calls the BIOS for disk I-O, but most BIOS programs still do NOT use UltraDMA!
BIOS sets your HDD to ATA-XXX, but then the raw transfer rate in DOS is only 2 to 10 MB/s! Well, you've come to the right place! These Ultra DMA drivers can boost DOS transfer rate up to ten times (measured by RAWSPEED by Martin Rehak and RAWREAD by Tom Ehlert). The drivers run on systems having an IDE UltraDMA controller chip compliant with the Programming Interface for Bus Master IDE Controller. This includes almost all desktop PCs, notebooks, and mainboards offered since 1997.作者: Michael 时间: 2005-10-22 22:55 dos下也能udma?有空试试去.作者: baby15500 时间: 2005-10-23 16:15 DOS下当然可以UDMA了,N年前我的一块华硕主板,芯片组是SIS5591,5595的,支持UDMA33,华硕官方的驱动光盘中就有提供DOS下的UDMA和WIN95/98里面的UDMA,试用了一下,果然能达到33M,比默认的PIO模式快多了作者: JonePeng 时间: 2005-10-23 19:30 DOS下当然可以UDMA了!其实Wengier的MSDOS 7.1超级启动盘里就已经实现了纯DOS下使用UDMA,只是驱动文件不是XDMA.SYS,而是UDMA.SYS。关于XMDA和UDMA的速度问题,我以前就发过一个测试的帖子(测试环境是Intel 815EP+CIII 1.3G+256MB SDRAM+Maxtor 80G):http://www.cn-dos.net/forum/viewthread.php?tid=16457&fpage=1
XDMA更新的速度还挺快的啊!UDMA就没有再进步。作者: Michael 时间: 2005-10-23 22:36 哈哈,以后我也要说
"DOS下当然可以UDMA了! ".