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DVD ROM drives not detected - Fine for months...

T

TechAddict

Junior Member
I noticed my DVD drives were not listed under My Computer a couple of days ago. I checked the event log for any errors, found none, and rebooted my PC. The drives were listed and worked fine.

Another instance identical to that happened yesterday. Today, however, my luck has left me. Drives have disappeared and have not appeared after a restart and a power off/on. I haven't updated any drivers lately, and any recent software installs seem unrelated to the CD/DVD drive prob. Ahem, excuse me... I did say Yes to some Msft Updates 2 or 3 days ago. Hmmmm...

I built this system in late summer 2008 and I cleaned the internal dust and fuzz about 2 months ago.
Both of these are on the one PATA connector on the Mobo. Unless that PATA IDE connector just choked, I don't know what could have made both drives disappear. The curious thing is how the drives were missing at least twice in the last 2 days, yet they reappeared with a reboot. It's possible this has been an issue for longer than 2 days - I seldom use the DVD drives so I could easily miss this kind of thing until I was ready to use a CD/DVD.

No, I haven't taken the PC apart yet...But if I don't get some suggestions pretty soon I'll open the case! 😕

Thanks for any suggestions.

Ck
 
I had this happen on one of my users laptops the other day. Do the drives still appear in device manager? In the instance I saw they still appeared in Device manager but were remarked with the error message that windows was unable to load the driver, the file may be missing or corrupt. If you are seeing something similar to this try the following:

click Start then Run

Type in "regedit" without the parrenthesis then click ok

Go to HKEY_LOCAL_MACHINE

Then SYSTEM

Then CURRENT CONTROL SET

Then CONTROL

Then CLASS

Then find {4D36E965-E325-11CE-BFC1-08002BE10318}

The whole thing looks like this:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}

Then delete the upper and lower filters....

Upper an Lower filters may not both appear just delete whatever is there. As always be sure to backup the registry before you do any edits in it. Hope this helps.
 
The whole thing looks like this:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}

Then delete the upper and lower filters....

Upper an Lower filters may not both appear just delete whatever is there. As always be sure to backup the registry before you do any edits in it. Hope this helps.
Click to expand...

Not sure what entry you're talking about 'upper and lower filters'. I have 4 entries in that branch, 0000-0003. Here is 0000:

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}\0000]
"EnumPropPages32"="storprop.dll,DvdPropPageProvider"
"InfPath"="cdrom.inf"
"InfSection"="cdrom_install"
"ProviderName"="Microsoft"
"DriverDateData"=hex:00,80,62,c5,c0,01,c1,01
"DriverDate"="7-1-2001"
"DriverVersion"="5.1.2535.0"
"MatchingDeviceId"="gencdrom"
"DriverDesc"="CD-ROM Drive"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}\0000\DigitalAudio]
"RegistryVersion"=dword:00000001
"NumberOfBuffers"=dword:00000008
"SectorsPerRead"=dword:00000010
"SectorsPerReadMask"=dword:ffffffff
"CDDASupported"=dword:00000001
"CDDAAccurate"=dword:00000001

Am I missing something in the Reg?

Ck
 
^ I have seen this problem often enough I have the path and the registry key memorized! :Q

But this will only work if the drive has a yellow exclamation mark next to it in the device manger
 
Hmmm....that doesn't seem to have any of the proper entries at all. I have never seen the /0000 appendix before
Also - have you checked the device manager to see if there are any yellow exclamation marks?
 
Originally posted by: Cathy Keeton
The whole thing looks like this:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}

Then delete the upper and lower filters....

Upper an Lower filters may not both appear just delete whatever is there. As always be sure to backup the registry before you do any edits in it. Hope this helps.
Click to expand...

Not sure what entry you're talking about 'upper and lower filters'. I have 4 entries in that branch, 0000-0003. Here is 0000:

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}\0000]
"EnumPropPages32"="storprop.dll,DvdPropPageProvider"
"InfPath"="cdrom.inf"
"InfSection"="cdrom_install"
"ProviderName"="Microsoft"
"DriverDateData"=hex:00,80,62,c5,c0,01,c1,01
"DriverDate"="7-1-2001"
"DriverVersion"="5.1.2535.0"
"MatchingDeviceId"="gencdrom"
"DriverDesc"="CD-ROM Drive"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}\0000\DigitalAudio]
"RegistryVersion"=dword:00000001
"NumberOfBuffers"=dword:00000008
"SectorsPerRead"=dword:00000010
"SectorsPerReadMask"=dword:ffffffff
"CDDASupported"=dword:00000001
"CDDAAccurate"=dword:00000001

Am I missing something in the Reg?

Ck
Click to expand...

The upper and lower filters keys are not in any of the sub branches. Just highlight {4D36E965-E325-11CE-BFC1-08002BE10318} in the left pane and see if they are among the keys that will display in the right pane. Exterous is correct. This won't fix the problem if the drives aren't remarked with a exclamation mark in device manager. This is to correct a driver loading issue. The remarked drives in device manager will say something to the effect of windows was unable to load the driver for this device the file may be corrupt or missing. If you aren't seeing this in device manager then we need to look elsewhere for the problem.


Edit:

Something just occured to me. What OS are you running? That fix Works for Win XP but I was just looking at the registry of my Vista box and found the upperfilters key in a different branch. Instead of it being in {4D36E965-E325-11CE-BFC1-08002BE10318} Apparently in Vista it is in{4D36E967-E325-11CE-BFC1-08002BE10318}. If your drives are remarked in device manager and showing that driver loading error message I indicated try deleting the upper and lower filters keys. Remember both won't necessarily be there just delete whatever is there and reboot. As always when working in the registry be sure to export a backup of it before you make any changes.
 
I am troubleshooting a moving target !! One of my DVD ROM drives is listed in My Computer now, and it looks fine in the device manager.

😕

It wasn't there 30 minutes ago
 


Edit:

Something just occured to me. What OS are you running? That fix Works for Win XP but I was just looking at the registry of my Vista box and found the upperfilters key in a different branch. Instead of it being in {4D36E965-E325-11CE-BFC1-08002BE10318} Apparently in Vista it is in{4D36E967-E325-11CE-BFC1-08002BE10318}. If your drives are remarked in device manager and showing that driver loading error message I indicated try deleting the upper and lower filters keys. Remember both won't necessarily be there just delete whatever is there and reboot. As always when working in the registry be sure to export a backup of it before you make any changes.
Click to expand...

As I mentioned in an earlier post, one of my drives magically appeared in My Computer, and in devices mgr - No errors or ! marks, and the drive works.

I'm running Win XP SP2. Guess I need to put my system specs in my sig... sigh.... I was trying to be lazy and just find one of you wizards out there that could help me w/ CD and DVD ROM drives. 😱
 
Well if there are no errors showing for the devices in device manager I think we can rule out that it is a windows problem. I see that 1 of the drives is showing up in windows now. Can I assume that the other is connected and should show but still is not? Tell me are both drives detected at POST. If they are but don't show up in windows then we are back to a windows problem if not then we are having a hardware detection problem with the motherboard or the hardware itself. Let me know if they are detected at POST. also are these drives IDE or SATA. If IDE are they jumpered for Cable Select or are they jumpered for a Master/Slave connection.
 
Top of the Morning to you, Nesu.

Last night one drive was showing up and I used the it. However, the drive wasn't showing up initially upon starting my PC. I had been on the PC for several minutes and as I was responding to a post here, the Pioneer appeared in My Computer list. Today, neither drive is showing up.

They are IDE, configured as Master and Slave. I don't think they showed up during the post, but I can't recall ever seeing them during post with this Mobo..?? I'm going to reboot now to see for sure.


 
Computers, ya just gotta love 'em.

:laugh:

Last night my Pioneer DVD-R appeared, as if it needed to do a random act of kindness. (I bought a GPS that has the owners manual on a CD, and I desperately wanted to check out the file xfer stuff).

Today, neither DVD-R was listed. I shut down and opened the case and checked all cables. All seemed tight, my sound card was snug in the slot, etc. I took the canned air to the insides, since it was open. [which is why I hate to open my PC - I always feel the need to clean it once it's open. ]

I fiddled more with the 2,3,4? pin cables from sound card to DVD drives and think one of them may have been bent enough to cause a problem. I straightened that cable and started the PC. Now the Toshiba DVD-R is showing up (this is the bent cable guy) but the Pioneer drive has taken the day off.

Since I'm in the mood now, I'm shutting down again and am going to replace one or both of those little small pin cables. If I can find my spares.

Ya know, if this is the problem, I'm very surprised. I wouldn't have thought the cables from the sound card to DVD drives would prevent the system from seeing the drive. Yes, it would interfere with playback/recording, but seems like Windows should still show the drives. With a little '!' in Dev Mgr.

Do you know if these cables would prevent Windows from seeing the DVD drives?
Back soon, with update.

Cathy
 
I wouldn't think they would. Just so you know though those cables aren't necessary anymore with Win XP I haven't used one on my drives since XP came out. Those are just an analogue cable and don't really communicate data just analogue audio to the sound card which can be picked up digitally by the OS anyway so it isn't really necessary. I did have another thought. Is the drive that keeps reappearing intermittantly the same one. I ask this because a few times over the years I have run across a bad dvd/cdrom drive that in most respects appeared normal but in reality was causing all kinds of system issues when it was connected. If the drive that appears intermittantly is the same one and the other drive is consistantly the one that never appears then there might be a possibility one of the drives is going bad and causing communication problems. They both share the same cable so that could make the good drive not communicate consistantly either. Try disconnecting the one that is currently MIA and run it for a day or 2 like that and see if the other shows up consistantly. If it does try connecting the MIA drive by itself and see if it will show up at all.

P.S.

Oh and by the way I seem to be forgetting my manners here. Welcome to the Forums! I've actually been away awhile myself and just returned. Looking to lend a helping hand wherever I can.
 
Thanks for the formal welcome. Glad you're sticking this one out w/me.

I thought those little cables were pretty insignificant, but I didn't know that XP handled all sound and recording with/without them. Must have been a fluke that the Toshiba drive showed up today after fiddling w/cables.

So, to answer your question 'Is the same drive always intermittent?' No, seems like both are missing when I notice. For the past 2-3 days, both drives have been missing a lot more often than they've been showing up. Yesterday the Pioneer drive appeared long enuf for me to pluck some things from a CD. At system start today (and yesterday) both drives were MIA. Today the Toshiba appeared after cable fiddling, but it's gone after my last shutdown/power up. The Pioneer has been silent all day. Both drives are MIA currently.

Based on that reply, do you think I still could have one drive that's flaky? They are on the same IDE port - this Mobo only has one PATA ide - but has about 40 SATA ide ports. I think they jumped the gun a little on throwing out the PATA users!

I could try another ide cable, although I suspect this cable is OK as it's fairly new.
Pls bear w/me if I'm in and out of here. I have to go to help a friend w/her computer and not sure when I'll be back here to the forum. Hopefully I have better luck on her system than mine. GRrrrrs!$@%!

Ck

 
Well the whole secret to troubleshooting is eliminating the possibilities. I think we have eliminated software as the cause but that isn't an absolute. lets see if we can eliminate the hardware. If you have another IDE cable you can use I would definately like to swap the cable to eliminate that. I would still like to try running the system with only one of the 2 drives connected to the cable as well. If a cable swap doesn't cure it humor me and verify that one of the drives is jumpered as master and the other is jumpered as slave. If that is ok then try running the system with the toshiba disconnected from the ide cable. If the problem is still there try running with the pioneer disconnected from the ide cable. Another thing to try and this goes back to possible software is run a system restore back to a restore point before you noticed the issue. Many times I have seen a windows update that would wack things. System restore should undo that if that is the case. Another thing If you go into your motherboards bios the drives should show up in there someplace if they are being properly detected by the motherboard. I would like to verify this is happening. Another thing disconnect those USB drives for now. Sometimes you get drives fighting over drive letters and that can cause problems.
 
By the way, I'm a little jealous of your sys config 😛 😉

Quad 9450... 8GB memory, and Western Digital Velociraptor 300 GiG 10,000 RPM HDD !! :disgust: Makes my system look like a Big Chief Tablet. I have/had been a loyal WD fan for years and I daydreamed about having a Raptor one day. But they are still too pricey per GB for me and the way I eat HDD space.

What aps/OS do you run on your PC? 8 GB memory - I know that you know that Windows isn't going to take advantage of it unless...... Oh - don't tell me. You're running 64 bit Win XP. And Ubuntu...

Anyway, nice system. I've seen the Q9400, but haven't seen the Q9450. What is the speed of that thing b4 O.C.?

(In addition to complementing your system, i wanted to sample the emoticons on the board)



 
Actually 64 bit Vista Ultimate. I dabble around with video editing and do a lot of capturing and rendering. Thats where all that extra ram comes in handy. That and RAM is dirt cheap so I couldn't resist doubling up. The Q9450 Runs at the same Clock speed as the Q9400 But comes outfitted with 12 megs of Cache rather 6 like the Q9400. The Q9450 is actually identical to the Xeon X3350. I figured the desktop versions were just the chips that didn't quite hold up to the server chip validation tests. My overclock is relatively mild but it is solid doesn't require a voltage boost and runs relatively cool. Besides it essentially gives me what was at the time of the build a $1000 chip for around $300. Works for me. The velociraptor is pretty fast but in fact the RAID 5 array using the 3 250 gig seagates is a lot faster even using the onboard intel RAID. Usually write speeds are horrendous but I know a trick that fixes that. If I had it to do over I probably wouldn't have gotten the Raptor. I would probably have gotten 2 more of those Seagate 250's and partitioned the array up like i do with my servers at work.
 
Originally posted by: NesuD
If you have another IDE cable you can use I would definately like to swap the cable to eliminate that.
Click to expand...

Nesu,

I'm sorry I picked your brain then disappeared. There was an illness, then death in my family so I went out of town w/little notice. I stayed for ~ 3 weeks for some much needed family time; just got back yesterday.

I started troubleshooting Dvd Roms again - removed the slave device and started the PC - Master device working fine. Changed the jumpers on the slave device to be master and started PC again with just one drive - configured as master. Same result - working fine with just one master device.

So, it is the cable, much to my surprise. As I said, the cable is fairly new so I was surprised that it was bad - and only the slave connector, apparently.

Thanks again for your help and suggestions.

Cathy
 
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