Ordered my LTR-24102B, so PIO or UDMA?

[Huggies]

I've got an FIC AD11 motherboard which of course has the VIA southbridge and ATA controller, I'm wondering if I should put my new LTR-24102B in UDMA or PIO mode? Nero suggests disabling UDMA and using PIO 2-3 if possible for Via chipset boards, but I've never had a problem running my Yamaha 2100EZ in UDMA mode so I'm just curious if anyone has had any problems with the drive in UDMA mode as opposed to PIO 3-4 modes... I've actually read a few places that you should try and put you're CDRW drive in PIO mode, I don't understand this, is this a myth or misinformation? Any help is appreciated! thanks

 

[bacillus]

DMA transfers are preferable to PIO as it doesn't utilise those cpu cycles!

 

[Huggies]

UDMA and DMA are two different things, you can use PIO mode and still enable DMA in windows they are two seperate things completely... All the DMA in windows means that the drive is using direct memory access which reduces CPU load, you can use this mode also in PIO3 or PIO4 modes as well.. I've read a few places that using CDRW drives in PIO mode will yield better results but this has never been the case with my yamaha I run that in UDMA (mode 1 ATA33) and never have problems... So has anyone had any problems running the 24x LTR in UDMA mode or should I infact follow this advice and run in PIO4 or something... My burner is the sole device on the secondary controller... Thanks!

 

[eplebnista]

Hello,

I have the same config, only with the Liteon on the primary(2HD's Raid 0) and the only way I could get DMA to enable was to manually set it in PIO4 mode and disable UDMA for that channel in the bios. After that the performance was alot better. Here is a link for more info on the Liteon.

HTH,
eplebnista

 

[DN]

I'd say go with DMA/PIO4 -- this will probably yield best results.. Don't ever strain a VIA chipset..