DMA for E-machine

DMA for E-machine

Post by Wei Yan » Sun, 02 Dec 2001 03:34:39


I have a E-machine at home (E-tower 500is, 500Mhz Celeron). It seems
me that I can't use DMA with the IDE hard disk. The BIOS setup only
listed PIO mode 4. And I can only get ~4-6MB reading/writting with dd
under Linux. If I put the same hard drive on other Linux system with
DMA enabled, I can get ~15MB I/O. So my questions are:

1. Is it possible to enable DMA on this E-machine? Or is the mother
   board just too old?

2. What is the form factor of the motherboard. I am also looking to
   replace the board but want to reuse the case --- I like the small