cd rom drives not detected?

princeofnam · 12-20-2010, 10:59 PM

I'm not sure what I did wrong. I connected the cords as they were previous to installing a new motherboard. The cd rom drives turn on eject when I press the button. However the drives don't appear on my computer (ubuntu or windows 7) and loaded CDs don't appear either.

visseroth · 12-21-2010, 02:41 AM

Sounds like it may be a CMOS setting. What is the make and model of your motherboard?

**Dogg** · 12-21-2010, 06:22 AM

What type of drives (ie: IDE or SATA)? If they are IDE drives, they will need to be jumpered properly (ie: Master/Slave).

visseroth · 12-21-2010, 09:39 AM

LOL, I forgot some people are still running IDE, LOL
Thanks for throwing that out there

princeofnam · 12-21-2010, 12:11 PM

Is there a guide to properly jumping drives?

visseroth · 12-21-2010, 02:29 PM

If it is IDE then you have 3 settings and the device usually has a lable on it.

CS = Cable Select
MA = Master (Primary drive)
SL = Slave (Secondary Drive)

Hard drives sometimes will also have the option for Master Stand Alone and 32GB limit for Windows 98 and/or DOS operating systems.

I like to practice putting the master drive on top and secondary below the master and pin them accordingly.

CS or Cable select automatically sets the device at the end of the cable as Master and the device towards the middle of the cable as Slave.

Either way you should either have them pinned MA and SL or CS. Not MA and CS or CS and SL.

princeofnam · 12-21-2010, 07:58 PM

Sorry I'm actually pretty lost. How do I know what they're pinned as?

the cord connected to the CPU only has three ends

SYSTEM, no tag, and MASTER.

I plugged SYSTEM into the mobo and MASTER into one of the cd rom drives. is that alright?

princeofnam · 12-21-2010, 08:10 PM

Okay well to specify my problem. When I plug both the MASTER into one drive and the unlabeled end into the other CD-ROM drive none of them appear in BIOS. If I just plug the MASTER into one of the drives, that drive appears. Not sure how to get both drives turned on. Is it a faulty cd rom drive or cord you think?

makinu1der2 · 12-21-2010, 08:29 PM

Look on the back of the drive for the jumper (master,cable select,slave) image below will explain

Set the top drive to Master and connect to the end connector of the IDE cable.

Set the second drive to slave and connect to the midddle IDE connector.

The other end should be connected to the MB.

princeofnam · 12-21-2010, 09:28 PM

Thanks. Although I'm still unsure as to how to "set it." the piece covering the two pins looks secure. Do I move it to the slave pin set? How Do i move it?

makinu1der2 · 12-21-2010, 09:32 PM

You should be able to remove the jumper and set it to the slave position. (it should slide off)

princeofnam · 12-22-2010, 04:28 AM

Sorry I really don't understand. What is the motion to remove the jumper? It's so tiny there's no room for my finger to even move it

makinu1der2 · 12-22-2010, 04:43 AM

If unable to use fingers to slide the jumper off try carefully using a small pair needle-nose pliers.