bios not recognizing LG dvd drive

Lg electronics Gh22np20 22x dvd±rw supe...
July 21, 2010 at 23:31:57
Specs: Windows XP
I have an LG DVD drive and a CD rom drive on my computer. The DVD drive clunked out and stopped reading disks so I bought a new LG DVD drive. When I installed it, neither the DVD drive or the CD Rom came up in my bios or 'My Computer' When I put the broken DVD drive back in, both the broken DVD drive and the CD Rom appear. I've gone on the LG website to install the drivers but it just tells me i don't have the hardware

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July 22, 2010 at 04:54:15
If it's an IDE drive, you need to configure the master / slave / cable select jumper on the rear of the drive. Check the jumper setting on old one that you removed & make sure the new one is set the same way.

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July 22, 2010 at 07:59:43
How do I remove my system cmos?

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July 22, 2010 at 08:26:22
You don't need to refresh your hardware configuration or mess with the cmos.
The drivers for optical drives are built into Windows, unless you have a SCSI drive or an old old laptop drive that requires drivers that are not built into Windows.

If the optical drives are IDE, the jumper on the back of the drive for Master or Slave or Cable Select must be set the right way.
Set it the same way as the dead drive is set if you're connecting it and the other optical drive to a data cable or cables the same way.
The jumper position / purposes are not necessarily the same for different brands and models, but usually each jumper position has something such as CS, MA, or SL near it, though that may be merely etched into the plastic and you may need good lighting to see that.


For two hard or optical drives connected to the same IDE data cable
- one must be set to Master, the other one to Slave
- or - both must be set to Cable Select

- if both are set to Master or both are set to Slave, neither drive will be recognized by the bios.
- if one is set to Cable Select, the other to Master or Slave, it's likely at least one of the two drives won't be recognized, if not both of them.

For a single hard or optical drive connected to a data cable, the drive should be set to Master, or be set to Cable Select and be on the end connector of a 3 connector data cable.
Newer bioses will often recognize the drive anyway if the drive is by itself on a data cable and set to Slave or set to Cable Select and on the middle connector of a 3 connector data cable, but it's not recommended you do that because the operating system will have problems with that situation in some circumstances.

If you have problems even after making sure the jumper settings are correct...

80 wire data cables must have the correct end connector connected to the mboard header, or drive controller card header in a mboard slot .
Usually that end connector is blue, but in any case it's the one farther from the middle connector on a 3 connector data cable.

It is common to un-intentionally damage IDE data cables, especially while removing them - the 80 wire ones are more likely to be damaged. What usually happens is the cable is ripped at either edge and the wires there are either damaged or severed, often right at a connector or under it's cable clamp there, where it's hard to see - if a wire is severed but it's ends are touching, the connection is intermittent, rather than being reliable.
Another common thing is for the data cable to be separated from the connector contacts a bit after you have removed a cable - there should be no gap between the data cable and the connector - if there is press the cable against the connector to eliminate the gap.
80 wire data cables are also easily damaged at either edge if the cable is sharply creased at a fold in the cable.

Try another data cable if in doubt.

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