Expansion bay problem

After installing Panther on my G3 Powerbook, the VST CD drive in my expansion bay - which had been operating perfectly prior to OSX - would seldom recognize CDs, though the VST Zip drive operated as usual. After updating to OS 10.3.5, neither the CD or Zip drives would recognize their media. This seem suspiciously like a driver (software) problem rather than a hardware failure. I don't think VST still supports this equipment, so I hope someone out there has some ideas.
Thanks for your input.
G3 Powerbook Mac OS X (10.3.5) Expansion bay has ZIP and CD drives

elsid14,
There have been a few complaints about media bay drives having problems with various versions of OSX. I have read that the VST Zip100 works fine at least up through 10.3.9; however I cannot recall anything on the VST CD-ROM.
However, problems that users were having usually were corrected by flushing all of the caches; I use the freeware Yasu and there are others like OnyX. There are many functions that OnyX can perform...just stay with the cache cleaning. You want version 1.5.3 for 10.3.x.
http://www.versiontracker.com/dyn/moreinfo/macosx/20070

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Could that be the cause of the problems or was the 5770 a bad card? Or is it the logic board. I ran the Apple Hardware Test. everything was OK.
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If it is any consolation I have the same machine and installed the Radeon 5770 and have intermittent high expansion bay fan speeds (1400-2400rpm). I just checked this board today because it seems more noisy today than in a while and the ambient air is listed as 78 degrees F. The card has it's own fan and exhaust slots in the back of the card and the air from them is warm but not what I would consider hot. I had had two video cards and a eSATA card installed and never had a problem. Now with just this card and the eSATA it exists. I'm betting if I call Apple about it they will tell me it's only listed on their site as compatible with the 2010 Mac Pros, so, for now I will live with it.

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I just picked up a Pismo the other day and found a DVD drive for it on ebay, which works perfectly, but the drive sticks out of the expansion bay a little unless I put some pressure on the bottom or the top of the computer. Of course, when I release pressure, the drive pops out a little again. Should i be worried about this at all, or is it just cosmetic? Is this a common problem? Any help would be appreciated. Thanks.

soul,
It sounds like the little plastic tab on the release mechanism inside the frame is worn and is not holding the drive as far in the bay as it should, or the recess on the optical drive may be worn. If you remove the optical drive, you will see a small rectangular recess on the edge of the drive that engages a small tab on the lever. Look into the empty bay with a flashlight and you will see the tab and how the mechanism works.
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Hi Guido, and a Warm Welcome to the Power Mac G5 Forum!
Assuming that you have made a visual (and aural (!)) check that it is definitely the fan at the front of the G5, in a combined housing with the puny internal speaker, that is making all the noise -
The units for "Slot combined" (as it's called on this venerable G5 DP2 running HM v. 4.1) are mentioned in the HM Help FAQ
"Why do the power sensors of the Power Mac G5 slots not carry a unit?
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This "PCI Slot Fan" is currently showing 35%.
For comparison, there are some fairly, er, not-very-recent, HM readings here
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As you have already run TechTool
https://support.apple.com/techtooldeluxe/main?id=dl
You could try the Apple Hardware Test
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Sometimes re-installing the combo updater fixes this type of problem
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Kanga 160 ram/ 40 gig / VST expansion bay HD (no OS) / OSX.3/9.1
Expansion bay will disapear & be unusable from osx desktop.
Once disapeared, Apple hd utility cannot remount either.
Other times it is usable from the desktop for a long time then disapears...
reboot fixes it until it disappears.
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BVD,
All I can suggest is the same procedure that seems to work on the later model black G3s, and that is to download and perform a deep cache cleaning. The freeware OnyX or Yasu will do the job nicely.
http://www.versiontracker.com/dyn/moreinfo/macosx/21674
http://www.titanium.free.fr/pgs/english.html

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Greetings,
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I agree with Allan. Both drives probably have their configuration jumper set to Master (the default for drives installed in external enclosures), which is why each is recognized individually when connected, but not both when simultaneously connected. For simplicity and ease of installation, you can use the Cable Select setting for each drive. Otherwise, one drive can be left as Master (or Master w/Slave present) and the other drive set as Slave. Systems that support Cable Select also support Master/Slave, provided that you connect the drive configured as Master at the end of the ribbon cable and the drive configured as Slave to the middle connector. The drives' labels should have jumper info printed on them. If not, consult the manufacturers' web sites for specific details.

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Would really appreciate some help solving this problem.
G3 Wallstreet is: 266MHz, 256 MB RAM, 4 GB HD, 14" screen.
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This PB functions well with wireless and all apps including DVD player. Apple floppy drive works just fine in the right bay.
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Suggestions appreciated.
BTW, I also cannot install Acrobat Reader vs. 5. Starts to download the needed files and then hangs.

Hi,
Tnx for your response to my request for help.
Unable to find the extension "Findit".
I am using the Iomega software downloaded from VersionTracker, not the files on the VST CD which came with the drive.
Followed your suggestion regarding only a single Iomega extension. So dumped Iomega firewire support, Iomega USB support and Iomega active disk engine. Retained the extension Iomega driver (84k file). Seemed logical.
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Next, removed all remaining Iomega files. Restart PB with VST drive inserted.
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Here is the Service Manual:
Manual
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If this is "the Answer" please click "Accept as Solution" to help others find it.

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SOLVED!!!!!
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