Bios(cmos) doesn't detect CD Rom Drive

[Belgarrath]

Red line on 80 pin cable is toward power cable. Hard drive is working fine. Cable is connected in this order:

MB to HDD(with center connector) to CD Drive(with end connector). Is that right?

I've tried several jumper settings on the HDD. It's set to "master with an ATA compatible slave". The jumper on the CD drive is on "slave".

You think it's a hardware malfunction? It's supposed to be a new CD drive in a new system.

Bios detects CD drive when the HD that came with the system(a Samsung SpinPoint SV2001H) is hooked up, but when I exchange it with my other (established)drive I get message that says the CD drive is ATAPI incompatible. It's a Seagate Medalist Pro 6450. Is it the IDE controller causing the problem? Or something else?

Belgarrath

 

[airbase]

usually will be the mark in the cable. if it is not there, end connect should to the master, in this case , should be HDD. so you should change the cable conncetion or the both HDD and CD drive jump set. Hope it helps.

 

[CitrixEngineer]

I didn't think positioning on the cable mattered with 80-pin cables, but I always put the Master on the end of the cable out of habit.

The Seagate was new in 1997-8, so its age might be the issue here - the CD drive may be using a higher ATA mode than the disk! They should still co-habit, though. Maybe switching the CD to use Cable Select would do the trick?

Don't think it's the IDE controller causing the problem; if it was, it wouldn't show up in the BIOS. Could be the Seagate.

You'll get better overall performance by putting each drive onto its own cable and using both the IDE channels on your motherboard - or are you trying to use all 3 drives? If so, try putting the 2 Hdds onto the 1ry channel and the CD onto the 2ry.

Hope this helps CitrixEngineer@yahoo.co.uk

 

[Belgarrath]

It was the cable. The cable that came with the system works with the hard drive/cd that came with the system. I used an older cable to work with the old hard drive. The difference that I see in the two cables is the new one seems to have more wires, and the wires seem finer/thinner. Who knows.

Belgarrath

 

[cdogg]

Yeah, the finer, thinner cables are generally the ones that are considered "80-pin" cables. The older one you were using was probably just a 40-pin cable and might have been the problem.

On a different note, it's not generally recommended that you have the hard drive on the same IDE channel as the CDROM drive. CDROM drives run at a slower standard than newer hard drives (typically ATA/33 or ATA/66). So if you had a ATA/66 hard drive and an ATA/33 CDROM drive, both would run at ATA/33. You would be clipping the speed of the hard drive. Just thought you should know in case you have other options...


~cdogg