DMA and PIO help please

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shadoe_phantom

1
that was exactly my point newby ('cause that plex drive is only supposed to support pio mode, not DMA)

PS
mines the 16x not 12x, but I understand japanese so no biggie (don't need the english manual).
 
N

newby

1
The IDE chain bottlenecks at its lower speed, windows reports the device actual transfer mode capability. Try a "time"access test under windows w/ both devices in diferent ide configurations.
 
S

shadoe_phantom

1
like I said, working great on my end. My DVD-ROM working at full speed (DMA enabled) & the CDRW drive also working at top speed.
Perhaps it's just a trick used for cdrw drives to make the DVD run proplery, but it is running at dma. Ofcourse I don't use on the fly (pretty useless method if not doing data backup if you ask me) so they shouldn't bottleneck each other.
I think now I understand what you meant before (we both took it the wrong way). I think what you meant was, if both are being used at the same time, then yes the bottleneck will occur, but if single, then you can have 1 device as DMA & other as PIO without it affecting each other.
Anyhow, this thread is getting longer than it should, so unless we have more to add to the original post, no sense in continueing about my settings lol.
 
Wedge

Wedge

1
I'll ask it again. In short, I get an "I/O" error when installing a game.

What settings should I try my Primary and Secondary IDE?


My setup:
Primary IDE Master: IBM DTLA
Primary IDE Slave: not installed
Secondary IDE Master: _NEC DV-5800A DVD-ROM
Secondary IDE Slave: HL-DT-ST CD-RW GCE-8160B

Wedge
 
S

shadoe_phantom

1
errrr, set to DMA if available.
If supports it or can act as though, then it will set itself to whatever is available.
But the PIO & DMA settings don't usually affect the installation of your game. Normally just slows down the speed of transmission. So you might have another issue.
 
S

SiXXGuNNZ

1
mine used to be dma now it isn't, I have done all the firware updates, bios, via, etc. also in the powerdvd utility to enable dma, the option for my dvd drive is blanked out. :\
 

Attachments

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crossleyj

New member
onesolo said:
Ok guys, I finally put my cd drives with DMA on. I simply changed the Secondary IDE Channel driver from the VIA one to the Standard IDE/ESDI Hard Disk Controller that comes with the XP.
Now CD-Rom is with Ultra DMA Mode 2 on and the CD-R with Multi-Word DMA Mode 2. By the way, can anyone tell me the difference between the two ?
I think my problem was a via driver bug, nothing occurs to me at this time....
Click to expand...
Just had the same problem. Watching a DVD merrily with 5.1 sound, DMA enabled on DVD drive (secondary master on Asus A7V8X), it froze when I tried to resume after a pause. On the reboot it wouldn't play properly since PIO had somehome become selected and switching to DMA if available produced no results. Following your advice here I switched the driver and got DMA back. Then changing back to the VIA one again (through the select best driver function), I still have DMA.

Seems to me that on the reboot something got corrupted that needed the driver to be somehow 'reset' and this was the only way (or at least simplest - just running the 4 in 1 installer does not help).
 
Duracell

Duracell

1
Hi crossleyj, Welcome to our forum! :cool:


Whoops - just noticed this thread was a year and a half old!
Click to expand...
it's not a shame to reply to this old thread when the content fixed your problem; :)


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