ok here is a new one?

[rockpile]

I just built a new computer and everything is working fine except the cd rom that I used to load the OS. Now that I have installes xp pro and servicepack1 the dc rom has disappeared from my computer? It recgonizes it in bios but when Xp starts up no cd rom please help?

[korgul]

Does it show up in the HCL on MS's site?

Could be that it is not supported by XP.

[rockpile]

Well i used it to install XP do you have a link or why would it work and show until I installed service pack1

[twistedbrntucker]

Shut off PC.Check IDE cable and unplug cable and power.Turn back on with CDROM disconnected. Shut down again. Plug everything back in power and IDE. Turn PC back on and see what happens.

[rockpile]

Bios detects the cd rom like its working fine

[twistedbrntucker]

I didn't read your first posting all the way.I edited it .Sorry

[twistedbrntucker]

Are your IDE cables new or used?

[rockpile]

They are brand new and I have switched them with known working IDE cables same story

[twistedbrntucker]

Did you unplug, start,turn off plug, back in and start again?

[DoctorReno]

Go into the Device Manager - IDE channels - and make sure that the channel you have the CD set up on is enabled. While there make sure that you set XP to detect DMA and not PIO onlyfor all your IDE devices.