Hello again to everyone who has been helping me in this thread. I would like to thank everyone, yet again, for your helpful suggestions regarding this issue. Considering how many suggestions there were and how much time I spent on the problem over the last few days, I think it makes sense to post a lengthy “conclusion” to all of this. Hopefully it may help someone else running into similar problems in the future.
It is important to note that I was experiencing a combination of at least two issues that I have identified, which compounded the difficulty of narrowing down the problem.
First off, what didn’t work. Feel free to skip this section if you couldn’t give a rat’s a$$.
1. Changing the RAM.
Tried OCZ 2x512MB DDR400 Premium modules and Kingston 2x512MB DDR400 with no effect.
2. Changing the voltage to 2.7V.
Using the other memory ruled this out anyway, but I did try increasing the RAM voltage with no effect.
3. Switching between 1xMaxtor PATA, 1xSeagate SATA and 2xMaxtor PATA RAID 1. Although part of the solution is related to the number of drives in the system, simply using different drives and storage controllers did not resolve all of the problems. At the very least, the issue had nothing to do with the controllers or drives themselves.
4. Motherboard BIOS.
Although I did not try upgrading the BIOS, it appears that the latest released BIOS (1009) works fine.
5. 20 > 24 pin ATX adapter.
This seems to have nothing to do with the problems.
6. Leaving the Windows XP disc in the system.
This did not affect the booting problems.
7. Manually specifying ACPI Multiprocessor PC when starting the Windows XP installation.
Allowing the Windows installer to run without manually specifying multiprocessor seems to have no effect on the problems.
8. Using a different version of Windows XP.
I was originally trying to install Windows using a corporate edition copy but testing a retail copy made no difference. When I sat down and thought about this, I was convinced the problem was related to the lack of service packs in the original copy of Windows I was using. It turns out that SP2 didn’t make any difference. Still, I probably should have been using SP2 from the start.
Now on to what actually worked.
Start here if you want to skip to the important part.
1. Disconnecting all but the necessary components and using a less power hungry video card.
I think Mondoman had this one pegged. When I have the 7900GT, Seagate and Maxtor drives connected all at once, the system fails to boot to ANY drive but the floppy. If I have just the Seagate drive and the 7900GT installed, it boots but it does not boot with three drives and the video card in combination. I had originally tried most of my installs without the Maxtor drives in the case but because of the problem in #2 below, I introduced them to test a different drive and the PATA controller. This is when I started seeing the failure to boot from the CD or hard drives. Granted that seems obvious to me now, but it wasn’t so obvious when I was running into the unmountable boot volume blue screens.
I’ll be picking a new PSU tonight and I’ll be looking for suggestions on what to buy. I’m not usually in the high end camp when it comes to power supplies so this is relatively new to me.
On to the first issue that started all of my problems and caused me to install the other drives into the system, resulting in the power issue.
2. Changing the nVidia storage controller driver floppy.
No, there was nothing wrong with my floppy drive or the disk itself (I tried a different disc just to be sure earlier on in my testing). The problem was that the make disk utility on the Asus CD that came with the board created a floppy that was missing the “nvata.cat”, “nvraid.cat” and “nvata.inf” files. What’s really weird is that I didn’t discover this was an issue until I had managed to install Windows many times without so much as a peep from the installer.
Last night I tried manually making a new disk from the nForce 6.86 driver package to see if the driver version could be causing problems and I started seeing errors about the missing files. (One of those, “if you’re installing from a CD or floppy blah blah files missing blah blah” messages.) I eliminated the possibility that it could be the drive and floppy disk so then I checked the disk itself and found that the files weren’t even there. (I realize now that I probably should have checked first, before trying another disk and drive. There’s half an hour I’ll never get back.)
When I copied all of the available files from the \NVIDIA\nForceWin2KXP\6.86\WinXP\legacy, \sata_ide and \sataraid folders onto the floppy, lo and behold, the missing file errors disappeared. Once I finally had managed to install Windows and boot into Windows in normal mode, I worked backwards to establish what the cause of all these problems were.
I actually solved these issues by removing all but the Seagate drive from the system, swapping in a new video card, and trying different version of Windows and the nVidia storage drivers. Then I started reintroducing the original software and parts. First the Windows disc turned out to make no difference. Then I tried the driver disc and found the problem in #2 above. Finally, I added the Maxtor drives back into the system and found the boot problem with the PSU in #1 above. There was no need to try the original video card as I knew that there was already a load problem even without it in the system.
I went back and forth twice between the original and new floppy disks with the nVidia drivers, just to be sure that I would get a blue screen using the disk with the missing files. At this point, I had only ever seen the missing file errors on the new disk but never once with the old disk. After a successful install using the new disk, I figured it must have been a version problem so I tried the old one. The old one gave me the unmountable boot volume error, so now back to the new disk. New disk worked again so I tried the old disk one last time and that’s the first time I saw the missing file errors on the old disk. Does this make any sense to you? It sure doesn’t make any sense to me but I tried continuing the installation without installing the files and saw my beloved unmountable boot volume blue screen. I think it’s safe to say that this is a missing files problem, not a version problem. Now I would love to know why I wasn’t always seeing an error about missing files, but I really don’t have the time to spend on it.
It’s safe to say that I’ve tried to install Windows on this system somewhere in the range of 40-50 times but I think I’ve got it nailed.
So now I’ve got a new problem. What PSU should I get for this system?
😀
Thanks again.
Scott