|Did you check or try the stuff in response 5?|
It would help a lot if you could find out which Dell model you have and tell us what it is.
You can look that up your model on the Dell site if it isn't printed on a label on the outside of the case somewhere - you use the number on the service tag label.
If you're not sure where the service tag and number is, the Dell site shows you possible locations, or the number might be in the bios Setup.
On a Dell desktop, Dimension 3000, made about 2004, I have at the moment, the service tag number is also stated at the top on the bios Setup pages, and so is the Dimension 3000 model it corresponds to.
Sometimes when you change which drives you have installed, the bios changes settings automatically. In your case you probably didn't have the new CD drive jumpered or otherwise connected properly, so when the bios did not find the new CD drive, it changed some setting(s).
"When I go into the bios the hard drive and cd drive and floppy drive are all recognized but are not available to select in the boot sequence menue."
You may not be interpreting what you are seeing correctly.
Are you sure you're using the right keyboard keys? See the bottom of the screen in the bios Setup for which keys do what - a mouse does not work in many bioses.
On the Dell desktop I have at the moment, it has only IDE drive connections.
I can only assume what I see in the bios for the Dell I have is the same or similar to what you see, until I know which Dell model you have.
In that bios, you change the setting by pressing space or + or -
For some settings space does one thing, + and - do another.
In the bios Setup it has...
Drive configuration - ALL of the listings there that you have a drive connected to, must NOT be OFF. If you're not sure what's connected to where, set it to AUTO.
If I have set one to Auto and there's no drive connected to that selection, or it is not being detected, there will be a short delay while booting and a message saying something like "drive at xxxxx not detected", or similar, but I can press a key to continue.
In that bios, if the bios actually detects a drive, when the drive type is highlighted, when you press Space, it shows the model number of the drive, IF AND ONLY IF you have selected the right type of drive, or Auto.
If it DOES NOT show the model number, either you have the type set wrong (e.g. CD drive when it's a hard drive), or there is no drive of that type or no drive at all connectecd to that IDE connection, or there is something wrong with the data cable connection or the way you have the drive jumpered, or the drive is dead or has no power connected to it.
NOTE: In some bioses, you may not see an indication a drive is detected when you change a setting, until AFTER you SAVE bios settings, then go into the bios Setup again.
Hard-Disk Drive Sequence
- in that bios it's set to System Boot Devices, the default. It can be set to USB device, if one is plugged in and it's bootable.
That is NOT where you set the boot order!
Boot Sequence - that is where you set the boot order.
In most bioses you have drive types listed where you set the boot order even if you do NOT have one installed, and even if the bios is NOT detecting a drive!
In that bios there MUST be a checkmark on the left beside the devices you want to be recognized while booting!
In that bios you press Space to toggle the checkmark on/off.
In that bios you press + or - to move a highlighted listed drive type up or down in the list.
If you have a floppy drive, the all purpose way to set the boot order for most people is floppy drive, CD drive, hard drive - if you can set it that way you usually don't need to change it again, unless you want to boot from a USB drive or a network drive first instead, and even then sometimes you set that somewhere else.
(In that bios you use the setting in Hard-Disk Drive Sequence to boot from a USB device.)
In all the bioses I've tried it in, if the floppy drive is listed after the CD drive, a bootable floppy is not recognized while booting.
A CD drive DOES NOT have to be listed first in the boot order in order for you to be able to boot from a bootable CD (or DVD) - it just has to be listed and be listed before any hard drive (or SCSI, if you have a hard drive controller card installed in a slot and you boot from a drive connected to it).
If you have more than one hard drive, the bios may only attempt to boot from the first one it detects, whether it is actually bootable or not. If the other hard drive is not bootable, and the bios detects it first, the bios will NOT find an operating system, if you don't have anything else bootable at the time. If the bios is the type that only attempts to boot from the first hard drive it detects, it will NOT try to boot from any other hard drives if the first one it detects is not bootable.
In that case there is often a separate list of hard drives, often near the boot order settings - the hard drive you want to boot from must be first in the separate list - or - sometimes more than one hard drive is listed in the boot order settings if you have more than one - the hard drive you want to boot from must be first in the list. The drives may be listed by their model numbers, or as hdd0, hdd1, or similar.
If you make changes to bios settings you want to retain, you must SAVE those settings.
In that bios, when I press Esc (I may need to press it more than once) the default is Save Changes and Exit.
That varies - make sure the one that that saves changes is selected.
Then I press Enter to accept the choice (other keys may work too).