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CD-Rom recongnised in MD-DOS and BIOS...

Trish's Escape from Hardware Hell Help Board » Hardware » CD, CDR, CDRW and DVD Related » CD-Rom recongnised in MD-DOS and BIOS but not in Windows « Previous Next »

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Posted on Wednesday, December 10, 2003 - 1:41 pm:   

My CD drive isnt working in windows, there is no drive icon in My Computer and I cant access it from any other games and stuff. But if you start up the computer with the Startup Disk it can access the CD-Drive fine in DOS Mode. It reads all the directories fine and access a few files. Also on the Performance tab in System Properties I get these two strange error messeges that I haven't seen before:
Compatibility mode paging reduces overall system performance.
Drive C is using an MS-DOS compatibility mode file system. I am using Windows 98SE
I just re-installed windows the other day and i've never installed any DOS programs. There are no weird programs in the MSCONFIG thing either.
Can you help? Thanks
Posted on Wednesday, December 10, 2003 - 3:13 pm:   

What motherboard/computer do you have? You have what appears to be a problem with chipset recognition in windows 98. The error message is telling you that because of this it can not properly configure IDE to run with out some DOS help which is native to Win98. Thus you don't have DMA support for your hard drive or CDROM.
Posted on Sunday, December 14, 2003 - 4:42 pm:   

I am running the old Intel i430vx Motherboard.
Posted on Sunday, December 14, 2003 - 6:38 pm:   

Check device manager, if you have an ! by any of your ide controllers than win98 is not recognizing the chipset properly. Sometimes it's as simple as enabling bus mastering in cmos to right things in windows so check it as well.
Be careful using Disk managers or Drive overlays such as Ontrack or EZ Drive. This could set the drives to run in MS-DOS compatibility mode, not allowing Bus Mastering.
Posted on Monday, December 15, 2003 - 5:31 pm:   

Thanks for your help E.S. but I found the answer to my problem at:;en-us;293185
Thanks anyway!
Posted on Monday, December 15, 2003 - 7:05 pm:   

Glad you got it sorted.

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