I just need to read the user manual and figure out how to rotate the hard-drive bay out of the way so I can get at the memory.

Update: I just had to unhook one cable which had prevented me from rotating it. The cable is too short. Not sure what the cable
goes to but I forgot to hook it back up and the computer runs fine anyway. I hope it's not a fan. I need to open the PC and hook it
back up.

I have to try and understand these 4 steps to rotate the hard-drive bay out of the way of the memory modules.

Step 1.
1. Disconnect either side of the P3 power-cable bundle that is attached to the card retention mechanism: press the release latch on the P3 power-cable
bundle connectors beside the power supply and pull the two connectors apart.

Step 2.
2. Press the card retention mechanism release-tab and rotate the card retention mechanism so that it rests against the rotatable hard-drive carrier.

Step 3.
3. Press down against the card retention mechanism until it clicks into place, locked against the hard-drive carrier.

Step 4.
4. Grasp the handle on the hard-drive carrier and rotate the carrier out of the chassis so that it is at an angle of less than 180 degrees from its original
position.

Note that different types of SCSI devices use different command sets. SCSI disks use the sd driver. SCSI tape uses the st driver. sg is the generic driver which can be used to send any type of command to any device. It sounds like your program is generating its own SCSI commands and using the generic device. To list the devices on the SCSI bus, do:

The device that's not showing up is /dev/sg2 although the sg driver is loaded. I don't use the st driver very often, sometimes I do. I need to check each device for which hardware device is failing - is it the disk, the drive's termination, cable, cable's bus, etc.. It's a hardware error, not software.

During bootup, the BIOS says "No Devices Found" although it found the SCSI card fine. I decided to get some other tape drives involved, the terminator might have fallen off the drive when I shipped it back from California.

I have solved the problem with my tape drive not getting detected. I thought that there was something wrong with the termination. I tried another similar drive that has the right jumpers on it and the BIOS picks up the drive perfectly. It just looks at the drive as being another device along with the SCSI card's two channels. I just need to study the jumpers since they are almost the same tape drive in model and type.

I will post this thread again if I can get the original tape drive detectable too. I can't be sure until I try a different jumper config.

So I had to order a tape drive to solve this problem - the tape drive arrived by FedEx yesterday afternoon and it's now up and running.

Great feeling to see it on the bus, although I still need to fix the fact that it's listed as /dev/st0. I want it to appear as /dev/sg2.
I can probably solved that problem, although I can do things with st0 that are even more specific than with sg2. So either way I'm up
and running.

Bye for now.



'

Oh, I've now solved the problem of /st0 versus /sg2. My tape drive IS mounted as /dev/sg2 so I can address it by name as such. It's just as
a device, the OS views it as the device /st0. No problem to communicate now.

Your issue with the original tape drive sounds like it may not have the proper scsi ID set by the jumpers. If the set ID conflicts with another device (the controller is usually ID 0) then it cannot be seen properly. On tape drives I have used ID 0 is all jumpers off.

I just finished installing my new memory chips which came yesterday and now the PC (the other one I mentioned in this thread) is booting fine. So all is well now with both computers. It was an incredible feeling to realize that Dell's diagnostic lights of 1 and 3 on and it's beeps of 1-3-2 sequence really were correct - the memory was bad. Rather than put 4 chips in, I only put two 4MB RAMs in 667MHz full buffered. They only cost me about 31.67 off ebay, not too bad a price to get my machine back up. I took some pics to help others but they are still on my phone. I have to email them so I can post them. So both machines are working now. The BIOS says I have 8GB ram now. I'm not sure how much RAM the 4 chips I took out was. The machine can handle up to 32GB. I still have 6 slots open for chips. You just have to rotate the drive out of the way to get at the chips but I now realize that I forgot to plug a plug back in so I have to take the cover off again - some device, perhaps some drive is not plugged in. But the machine runs great anyway, so that's strange. Yeah, I had to unplug something to get the drive bay to rotate out of the way. What a pain to have to reopen the PC as it's stuffed into a tight space in my room.
[SOLUTION]