[Cosmo]

I've posted this before on the apple insider boards, and someone there said i should try posting here. If you want to read what people on AI have written click here

Here is what i posted on AI:

Yesterday I attempted to install my new western digital hard drive on my rev. D imac. The installation looked like it had been a success until I tried to turn it on.
I put everything back together, plugged the keyboard in and pressed the power button. The fan turned on...but nothing else, the light on the front glowed a heart breaking shade of amber instead of the uplifting green that i had expected.
Although discouraged, I didn't give up, I thought maybe I had left a cable loose or something, or maybe the jumper settings on the drive were incorrect. So I opened everything up again, checked all the cables, switched the jumper settings from single to master and once again put everything back together. When I turned it on for a second time the same thing happened.
Now I was beginning to wonder if the drive itself was faulty, so I took it all apart for a third time and put the original drive back in. This time when I turned it on, the fan came on, and I could hear the HD spinning up, but once again nothing happened. Discouraged, I gave up and went to bed.
This morning I got up and continued work, I set the new drive's jumpers back to single and installed it one more time, and nothing new happened, the exact same thing as the other times.

What should I do and what is the cause of my problem? I don't think I fried the system, because I have been turning it on via the usb keyboard.
Any suggestions?

Since then i have also tried setting the jumpers to slave (someone on AI suggested that i do so) with no luck.

I'm getting desperate here!
(is it time 2 start counting the pennies so i can pay someone to look @ it?)


------------------
Cosmo has left the building...

ICQ me: 24184791

[Evangellydonut]

SCSI idea that I don't know if will work or not...I heard it was risky but worked for me, and like I said, it's an idea for SCSI, I'm not sure if you can do such on IDE...

Only plug-in the power of the HD, and boot via the CD-ROM. once it's booted through the CD, then plug-in the SCSI (in this case, IDE) HD connector. Launch Drive-Setup, and format the new hd...

[reader50]

Avoid the Single setting. The Single setting is a foolproof setting if just one drive is on the IDE bus. It causes the drive to respond to all commands, regardless of if they were meant for the Master or Slave drives.

Single is of more use on some PCs, but Macs have no BIOS problems with adding drives. You have the HD and the CD ROM on the iMac's one IDE bus. If the HD is set to Single, it will prevent either drive from working.

It seems likely that the CD ROM is set to Slave. I would suggest setting the new HD to Master, then boot up from the CD with your installer disk. Use Drive Setup to format the new HD and install system software.

Zapping the pram would be a good idea, but as you said, you have not gotten that far in the boot process. Instead, locate the CUDA master reset button on your iMac. With the iMac turned off, press and hold the CUDA switch for at least 15 seconds. This will zap all pram and restore the factory settings. Reassamble & boot.

[Cosmo]

I'm @ a friend's house right now, but when i get home i'm gonna try both of your suggestions. One question, however, where would i locate this so called "CUDA master reset button". Is it the button you use to restart after a feeze using a paper clip, or the other button that is below (maybe above) the reset switch?

Thanks for the quick responses!

------------------
Cosmo has left the building...

ICQ me: 24184791

[reader50]

The CUDA switch is on the motherboard, it is not the normal reset, or the programmers interrupt switch that you refer to.

I don't know where it is on an iMac, but it looks like a silver flat square lying against the motherboard about 1/8" high by 3/8 by 3/8 with a little 1/8" round plug in the middle sticking up a bit. I'll see if I can paste in a pic of one.

I tried your ICQ number, but it showed you off line. Let me go look for a CUDA pic.

[reader50]

This is a pic of the CUDA switch on a 2nd generation iMac - a DVSE 400 to be exact.


Apologies for the image quality. I could not find a good pic online, and had to grab one with my web cam. No complaints allowed - the web cam came free when I signed up with Earthlink.

The CUDA switch could be anywhere on the motherboard. I would start searching near the battery, and go from there.

If you can't find the CUDA switch, remove the battery for 15 seconds or more. This will do much the same thing, but I am under the impression that the CUDA switch does a better job.

BTW: How did you plan to move your data from the old HD across to the bigger HD?

[reader50]

Further thoughts, I have to run off and do some work, so I had better kick them out now.

If the blank HD is confusing the iMac, try booting while holding down Cmnd-Option-Shift-Delete. This will cause the iMac to skip the first drive and go to the second (the CD in your case).

Alternatively, try booting while holding down Option. Within a minute or so, you should see a simple graphical menu showing the available drives. Choose the CD, followed by the continue arrow.

Hope this covers it. I have to run, other people here may be able to kick in other ideas if you need them.

Good luck.

[Cosmo]

Well...i tried the CUDA button and the battery trick. At first i couldn't find the CUDA switch, so thats why i did both. Maybe it wasn't the CUDA switch, it was way smaller than the pic u sent. Hopefully i used the right switch...it did say reset becide it. Below is a pic, the bright red circle @ the bottom to the left of the daughter card is the swtitch i used.
I also switched the jumpers to master.
I still got the very same result as before, no hdd spin up or anything, just a fan, and an amber glow from the light on the front of the computer. (the usb still seems to work though).
I would try connecting the drive w/ just the power, but because its an imac, the wires aren't long enough to do that.



Edit: fixed messy ubb code
------------------
Cosmo has left the building...

ICQ me: 24184791

[This message has been edited by Cosmo (edited 08-03-2000).]

reader50,
I was under the impression the the Imac had 2 IDE channels.

1. The two connectors on the Mboard show "ide0 "and "cd-rom". Usually, each channet has ONE connector.

2. There is a reader report on Xlr8yourmac from a guy who hooked up a 60 GB IBM 75GXP to a long ribbon cable that he routed trough the iMac and out the port door. He had a Maxtor as an internal drive, and I would believe, still had the use of his CD-ROM.

On the other hand, extra IDE channels do not make sense when we look at Apple's track record in regard to upgradability.

Flipper

[Evangellydonut]

IDE controller generally has a Primary and a Secondary, with each supporting a master and a slave, thus 4 devices can be connected to 1 IDE controller.

Most G4s have DVD and Zip on secondary, with HD on Master of Primary...

[reader50]

4 device capability would be very nice in an iMac. I certainly can't argue with you on that, I have never had an iMac.

I have been trying to help based on my G4 experience and what I have read from iMac owners. If anyone else has useful info, or better yet a full solution for Cosmo, by all means chip in! This poor guy has been without a Mac of his own for several days now and is likely experiencing severe withdrawl symptoms. We need to get him fixed back up.

[Joshua]

A friend of mine had the exact same problem with his iMac DVSE, though he hadn't opened the machine recently. He was uploading some updated html pages to his site, the iMac bombed, and then when he restarted he had the exact same symptoms you're experiencing.

He ended up having to take it into the shop for a few days, but they got it fixed up for him. I'm pretty sure it was covered under warranty.

Josh

--- www.digitalpapercut.com

[Cosmo]

Joshua:
as much as i'd love to take it into the shop, i really can't afford that, and by opening it up and removing all that stuff i'm quite sure my warranty is completely null and void.

**UPDATE FOR EVERYONE ELSE**
Today i tried booting from the cd player only without the hdd plugged in. I got the very same result. I am wondering if the CD player gets its power from the HDD, because the only plug on the back of the cd player is the ide cable, the only power cable that comes from the board goes into the HDD.
Does the fact that i couldn't turn it on even w/out the hdd installed mean that i have totally fried my board, or does it just mean that the CD drive needs a hdd to opperate? any other comments?

Thanks again for all the suggestions! (and keep em coming!)

------------------
Cosmo has left the building...

ICQ me: 24184791

[Evangellydonut]

Um, as far as I'm aware of, CDROMs should ALWAYS have their own power-cord plugged in. Infact, at the back of your CDROM, there might even be a third cable for audio...

[reader50]

The best idea I have left would be to plug both drives into a PowerMac and take a look at them. This would also be a good time to transfer data across.

We seem to be having a nearly identical problem over in this iBook thread.

If anyone else has ideas, please post. I am just about stumped.

[TimmyDee51]

Cosmo, I just installed my new HD and it went off without a hitch. I am formatting it as we speak. I am using a DiamondMax 30 GB. My question is did you remove the mobo and the daughtercard? I was able to do the swap without doing so and saved myself some time. Maybe that is the root of some problems. Just a shot in the dark, though. Do try checking to drive in a Power Mac with an open bay. It sounds like a good bet. Run Tech Tool on it if possible or maybe use HD Tool Kit.

[Cosmo]

I did remove the mobo and the daughtercard, and i was quite annoyed @ myself after doing so, because i realized that i had wasted time, and made more room for error...I'm taking it to the store tomorrow actually. But thanks for all of your suggestions!

TimmyDee:
What rev. iMac do u have?

[TimmyDee51]

Rev. D with standard mobo (haven't gotten around to the rev. A/B switch yet)

[Cosmo]

Thanks for all your help...although i still couldn't fix it myself

I did get it fixed though...what they did is beyond me, the guy said he "re-did everything you (I) did" He also said he had 2 call Western digital to get the jumper settings correct.
Either way i'm down another $170, but up 30 gigs
Lets see what this cable modem can do!!



Thanks again for all the help, i couldn't have asked for more

------------------
Cosmo has left the building...

ICQ me: 24184791

[Evangellydonut]

don't go too willy nilly on the internet. My cable ISP recently b!tched and threatened about my upload bandwidth...after oh, only 1.5 gigs of file transfers...

anyway, I'm looking forward to my 30 gig drive for US$118 (the dealnn one, with tax 'n shipping)