HP BIOS DMA Setting

[dreamerman]

Hi, I have a HP XW4600 that is old but still going strong. Currently using it as a home server. It's CMOS battery died and had to set up BIOS again after battery replacement. Got confused at DMA setting. The choices are Enhanced DMA, Ultra DMA 0, Max UDMA, PIO 0 and Max PIO. Tried googling it but unable to get a clear answer. Which mode should I use when I have a SSD as the boot drive and a few SATA internal drives? Naturally I am looking at the mode that will give me the fastest speed. Thanks.

 

[SkyNetRising]

You should leave it at default - probably max udma (or enhanced dma).

 

[das_stig]

Enhanced DMA is for optimal performance.