DVD drive failing to load

I recently had to replace the power supply unit in one of our desktops (Win 7 Professional SP1 32-bit).  Everything works well after the replacement except the DVD drive.  It has power (I can open the tray) and shows up in the BIOS.  However it's not listed at all in Windows 7 (not in My Computer or even under Device Manager).  I get error 7026 when I boot up the machine

Log Name:      System
Source:        Service Control Manager
Date:          Date
Event ID:      7026
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      Computer name
Description:
The following boot-start or system-start driver(s) failed to load:
cdrom

Any ideas what's causing this and how to resolve?

Thanks!!
LVL 2
jmerullaAsked:
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jmerullaConnect With a Mentor Author Commented:
I can open tray of the drive so it has power.  I could not boot from CD when starting the machine so I looked at BIOS again to see if there was something that got changed.  The SATA port that the DVD drive was connected to was unchecked as an option in the BIOS.  Once I checked the box and restarted I was able to boot from CD and also saw the drive after starting Windows.
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FutureTechSysDOTcomCommented:
Don't waste time on it.  They're $10-$20 to replace, just put in a new one.  You could spend hours tinkering with drivers and add/removing things in Devices, or just put in a brand new one.

Regards,
Chris M.
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nobusCommented:
if you want to test it, use a cd burning soft; it will quickly tell you if it's bad or not.
here a free one :  https://cdburnerxp.se/

But since you replaced the PS -  maybe you dislodged a connector; so i advise you to check the cables and connectors : remove  - inspect - and reseat them ALL
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jmerullaAuthor Commented:
Solved my issue
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