help ,DMA problem

[nicola]

can anyone tell me how to disable dma on my writer ?since i enabled that and my dvd rom they have dissapeared ,there not on my system list or device manager,i have a exclamation mark on my secondry ide ?????:confused:

[ScottE]

You need to use an 80 conductor cable to take advantage of DMA otherwise it will cause problems.

[nicola]

i dont know what a 80 conductor cable is or does or what dma does i was asked by pc to enable dma ,so i did on my dvd writer an dvd rom now both have vanished ,can some one tell me how to get them back plz :cry:

[Norm]

Right click your "My Computer" icon on your desktop, and select "Properties"

When the window comes up, select the tab that says "Device Manager"

You'll see a list of devices with plus signs (+)
Click the plus sign for 'CD Rom", and then cliclick on each CDRom in the list. (one at a time) then click the button that says "Properties"
Then click the tab that says "setting"
In there you need to uncheck where it says "DMA"

Do that for each of your CD Roms (or DVD) then reboot.

See if that fixes you up.

If it doesn't, then in the device manager for each of your CDRom's or DVD, click "remove" and reboot. Windows will reinstall them.

Good luck.

[Norm]

Oh, 80 conductor cable is the cable that goes from your CDRom/DVD to the socket on your motherboard. It looks almost the same as the older 40 conductor cables, only there are 40 more tiny wires inside it. They replace the older, slower ATA 33 cables.

You can buy one at any PC store. They may be called ATA 100, ATA 133 or 80 conductor cable. The guy at the store will know what you want.

Good luck

[nicola]

ty for help, but my computer ,device manager the dvd rom an writer have vanished from there my system says nor dvd rom on computer ,but floppy is there and wasnt b4
,it , there is a exclamation mark by my SECONDARY IDE CONTROLLER

[Norm]

Originally posted by nicola
ty for help, but my computer ,device manager the dvd rom an writer have vanished from there my system says nor dvd rom on computer ,but floppy is there and wasnt b4
,it , there is a exclamation mark by my SECONDARY IDE CONTROLLER Ok, sorry.

Remove the Secondary Controller from device manager, and reboot.

[Norm]

Nicola, if that doesn't work here are a couple of other things that may..... depending on if you have your CDRom, and DVD setup "physically" correct of course.


Restart in Dos mode, and type scanreg /restore.
When the next page comes up, use your arrow keys to select a file dated before your problem started (if there is such a file present in the list)

or if that is a no go.

Restart in safe mode. Go into device manager, and remove "all" the IDE devices, including CDRom's DVD's, IDE Controllers., and reboot. Windows will/should detect and reinstall them.
After done that, go into Control Panel, and run the "add new hardware" wizard.

Good luck.

Sooner or later we'll get you fixed up, have faith :)

[nicola]

when i fitted dvd writer there was no room on mother board for tape ribbon so i used the one that feeds my dvdrom this i think is were all the problems started ,so i have just disconnected my writer and everything is back to normal ,so how do i connect my dvdwriter from scratch ,the man in the shop told me to make my writer the master ,thats what it is set to when all these problems started last time can anyone talk me through setting my writer up ,,,,,,thank you for all help ,,,xxxxxx:)

[Norm]

Both drives can be on the same cable Nicola, but one must be "master" the other must be "slave" (or both can be "cable select")
Try each of those methods and reboot. If "master"/"slave" doesn't work, switch around to "slave"/"master" or use "cable select" on both drives.

Set the jumper on the back of the drives accordingly.
Plus, the cable has a colored stripe on one side (usually red, or blue, but could be any color) Make sure the colored stripe is on the same side as the Power cable when connecting it to each drive.

[nicola]

hi on the jumpers there is slave an master and something else is that cable select, also mydvd rom is already set to slave i know because when i boot up i have noticed in the writing that flashs up on screen it says slave dvd so what do i set them as,and when you told me to remove ide controllers when i clicked onide secondry dual cotroller to remove it it says it is part of a multi fuction and cant be removed

[cyberskye]

lave i know because when i boot up i have noticed in the writing that flashs up on screen it says slave dvd

You would get the same result if the drive was set to Cable Select and is on the middle adapter (on the IDE ribbon)

You should verify the jumpers your self. If you have on set to calbe select and another device set to Master/Slave you can get whacky results.