checksum is the word for dead battery on motherboard
or low battery will appear !!
It depends. If you are adventurous, turn power off. Unplug the power cord. Open the case and check to see if the ribbon cable(s) are firmly plugged into the system (mother) board and the drives. Note which connector the drives are using on the system board. Are they using the same cable? It's possible the system board end is loose. Reseat. Check the power cables. It's possible the drives use the same power cable off the power supply. However it's unlikely to lose power to both unless the whole power supply goes. But it is possible to lose a pigtail. Next put everything back together. Power up and go into your system set up. You'll be checking to see if the BIOS recognizes the drives as present. Even though you checked the cables, you may have a problem with the drive controller. That's why you checked the cable and determined if both were using the same cable. If both drives are absent or unrecognized, you need a new system board. If both drives are recognized, exit start up and let the system boot completely up. Next go to Control Panel, System, Hardware Tab, Device Manager Button. Scroll down and look for your DVD/CD drives. (there is an aternative later on). If their is no listing, XP has lost the drives. At this point you can go back to control panel select Add New Hardware and see if the system recognizes the drives. If it doesn't on it's own, you can go through the process again and select from a list. If that doesn't work, you're going to need to enlist some help professional or otherwise. We don't have enough space here to list all the options.
The alternative I mentioned earlier is if the DVD/CD drives are listed. Next double click on the drives listing one at a time. General Tab should indicate if there is a problem. The easiest thing to do is use the troubleshooter. You can check the other tabs out of curiousity. Under the driver tab, driver details button you can see all the listings. There may not be much there, but there should be at least three or four listings: C:\WINDOWS\system32\drivers\*_xo.sys , C:\WINDOWS\system32\drivers\cdrom.sys , and C:\WINDOWS\system32\drivers\imapi.sys. If not you will need help. Go to the Details Tab. You should see Device Instance Id and below that IDE\CDROM* plus some additional information which is the Hardware Instance for the Registry. It will include the manufacturer's designation. If you don't see that get help. There is more information in the pulldown you can highlight and check on.
You can spend a lot of time on this and learn a great deal. I assume though you'd like to get back up and running in a reasonable amount of time. I wish you well.
Many of the suggestions here are good. I had one case where nothing I did made my rig recognize my optical drivers. Seperatly I found out I had SecuRom on my compouter, it had been loaded on by a game with no warning. I removed it, (not easy google it to see how). After removing SecuRom all was well.
Gary,
Have you recently opened up the computer for any reason? Then the first thing you should do is determine that the drives are actually operating. Try opening them both. If they don't open, the drive MAY be bad OR the power cord inside may have come loose.
HOWEVER, if they do open up, then you need to check the IDE cable and see if it may have worked itself loose. The fact that you restored the computer to an earlier stage when they were working and they still weren't seen by the OS would seem to lean towards a hardware or cabling problem.
If this doesn't solve your problem, the next step is to remove them and install them in a different computer to see if it recognizes them. If this is too involved, try removing them and take just the drives to a repair shop to have them test the drives.
Good luck.
A similar thing happend to me recently.
The best solution is to save all your data (documents, photos, music etc) to an external hard drive and reformat your computer to its basic form ie using your restorations disks back to the manufacturers settings.
At this point create a rstoration point for future use.
Reinstall all your software from scratch one at a time and run it to see if its causing any problems.
If it does delete it and go back to the restoration point you have created and start again.
( its very tedious and time consuming but it works nine times out of ten)
Down load any updates you require from the internet.
Copy all the data files from external hard drive to My Documents.
Fire up the software and let the computer find your music, photos etc.
This should get you back on the road
Good Luck
Richard Bentley
thanks for your information ,i had problem like this before i will try fix
thanks
Hi Richard,
Whilst that would have fixed the problem, that was probably overkill. There is a simple registry fix out there which would have saved you hours in reformatting and reconfiguring. It can never hurt to do a search and look for a fix to the problem you're experiencing. Reformatting should be a last resort, as it is extremely time consuming and inconvenient.
If you don't know how to work in the registry, then I would recommend you find someone who does.
To get to the registry you do a search on your pc and type in regedit, once you find it just click on it and your in the windows registry. Ready to fix this annoying problem.
Just a few weeks ago I had the same problem after installing a Blueray internal player in my Vista Ultimate main computer.
This worked like a charm for me.
Here's the link and I will also attach the registry edit procedure. You may need to register on the site to see the solution, but try my link first as I may be wrong.
Good luck, this will definitely work if done as instructed.
http://www.fixya.com/support/t147701-dvd_drive_problem
Here's the procedure below just in case you don't want to register in the site.
Great news, I found a fix...turns out the problem was in the Registry, somehow an upgrade or installation program must have caused an alteration.
Fix problem by going into Regedit and do the following: Select first:
H_Key_Local_Machine\system\CurrentControlSet\
Control\Class
then go to:
Key Name {4D36E965-E325-11CE-BFC1-08002BE10318} Then delete all value data from the Upper and Lower Filters of this key.
Do not delete Key or MultiString values.
Then exit and reboot machine.
This problem can occur in any XP machine. I add this does happen in Vista as I found out myself.
Regards,
Jay
iwil send you a copy of erunt to bacup your registry if you ar running the NT Format And not Fat 32 it backs up your registry auto matic or yoy can do it manual harley 65 cstag60@yahoo.com
Touchy little things these Sony PCV series are. I have 2 Sony Vio PCV755s' Desktops and this same problem has occurred on several occations and usually after changing some drive within be it an HDD or DVD/CD and yes... even the floppy. It has even occurred after simple cable swaps!!!
Here's what always works for me:
Make sure your J2 jumpers are correct and on the proper cable interface point and then make sure you boot into Bios and have ALL your drives recognized all over again by the Bios and save it. If you are utilizing Windows XP(???), You can also open hardware monitor in Windows and scan for changes in that section.
I have a Sony PCV-RZ71P with a DVD burner and DVD ROM, dual 3.3Ghz Pentium 4s, running XP Pro. At first the Veritas software stopped burning DVDs and then stopped burning CDs,and when as a last resort, I installed Roxio Easy Creator 10, the PC wouldn't even recognize the drives.  After uninstalling the Roxio and much monkeying around downloading drivers, registry cleaners, etc., I finally did a recovery with the CDs that Sony provided with the computer. I also used that as an opportunity to install another HD, put the data there and put the OS and program files on the other. Things have been working fine since.
Ok here's the deal as I know it. Vista does not work well with certain older programs. You probably loaded program that uses the cd or dvd drive. Nero, windvd or some other such program the code it uses to control the drive conficts with vista. You can search for the fix on Microsofts site. I had to edit the registry. But it worked and I didn't have to redo the system.
Ok I just noticed you have XP if you want to test your hardware what you need to do is use a bootable cd and boot from your optical drive if it boots then your hardware is good. You might have a virus in your system. I don't know of of a good solution but at least you will know if the hardware works.
Are both the CD / DVD drive on the same IDE lead as slave /master ? If so check the IDE lead for severe bending or kinks in the IDE lead. An IDE lead is like any other lead that you pass electricity through it will degrade over time. Just like a scart lead for your TV from your DVD player or Digital TV. Its always best to check the phisical before you start to tackle the logical problems of a pc. 9 times out of 10 its a phisical problem ie ( something you can touch|) if its a logical problem then its software related and can be a bit more tricky to diagnose
Another option though unlikly in this case is a firmware upgrade if they are very old cd/dvd drives they may not recognise new types of cd/dvd discs a firmware upgrade from your cd/dvd drive manufacturers website can solve this problem. though BEWARE when upgrading the firmware you are actually flashing the instructions chip inside these drives and if power is suddenly lost while you are flashing your devices you can do irepreable damage and cannot be fixed. so choose this path with caution... hope this helps
regards
Hi
I recently had this problem, my son who works in IT recommended a Website called CDROM-Guide Forums this provided the help which corrected the problem. However a warning! this requires input into the registry of your PC so great care is required.
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