OK, this is throwing me for a loop. I recently (a month ago or so)
installed a new 250GB Hard Drive as the Master device on EIDE 1. That
install went fine and everything worked perfectly, leading me to believe
that there were no ATAPI issues with the large Hard Drive size. OK, now
yesterday I installed another 250GB Hard Drive as the Slave device on the
same EIDE channel (EIDE 1). This is where the problems start. If I format
the new drive as a 250GB Hard Drive, the computer will not boot ("Error
Reading From Disk" or some such error). If, however, I let the Western
Digital tools limit the drive to 137GB when it gets formatted, the computer
boots and everything works fine.
Is it possible to run into an ATAPI problem with one device on the EIDE
channel and not the other?
Is there a combined Hard Drive size limit that I am not aware of?
I tried a few things, even partitioning the new Hard Drive into 2 125GB
partitions and got the same results. I even booted and, once Windows came
up, reformatted the new Hard Drive as a 250GB Hard Drive. When I did this,
everything seemed to be fine (I could see the drive, write to it, read from
it, and it looked like another valid 250GB Hard Drive) until I restarted the
computer - then it wouldn't boot again and I had to reformat back to
137GB.
Any ideas?
Adolfo continues...
I use the Western Digital tools to format. Both drives have 1 big partition
(nothing fancy here) and I am not forcing drive letters - I let WinXP assign
drive letters. The bootable drive is Master (primary) on the EIDE cable and
the other drive (the one with the problem) is Slave (secondary) on the same
cable. Bootable drive is C: and other drive is D:. Both drives are 250GB
drives and the bootable drive is formatted as such and works fine. When the
other drive is formatted as such, all of a sudden neither drive can be read
and the system will not boot. Only when the other drive is formatted as a
137GB drive (or smaller), is the computer operable again.
R. C. White said:
Hi, Adolfo.
I'm amazed and disappointed that many users still, nearly 5 years after it
was introduced in Win2K, have not found Disk Management. At the Run
prompt,
type: diskmgmt.msc
This is the proper tool to use in WinXP for all disk and partition
project -
except for the System Partition (and, if different, the Boot Volume). Use
this to delete all existing partitions on the new drive and create one or
more new ones, then format it.
(SNIP)
Adolfo said:
So, if I try this and get the same results (not sure why I wouldn't), then
the computer will NOT reboot and I will be forced to use the Western
Digital
tools anyways. I'll try it tonight, but I'm not completely sure you are
visualizing the problem.
For more background, this new 250GB hard drive is replacing a Western
Digital 100GB hard drive (formatted with exact same tools - 1 big
partition
again) that was working as expected.
Adolfo.
Adolfo:
Just to make sure I (and perhaps others) correctly understand your
problem...
1. You installed a 250 GB HD as your boot drive and there's no problem with
that HD booting and the system recognizing the full capacity of that disk,
right?
2. You then installed another 250 GB HD (Western Digital) presumably as a
data or backup disk.
3. Using the WD utility, you partitioned/formatted the second HD (single
partition of 250 GB) and apparently that process went without incident.
However, when both drives are connected, the system will not boot.
4. If you partition and format that second drive (again using the WD
utility) but limit the partition to 137 GB or less, the system will boot and
the second drive is recognized without any problem.
5. Then you say you partitioned and formatted that second drive with two 125
GB partitions, booted up and reformatted that drive (presumably using XP's
Disk Management utility) into a single 250 GB partition and the system
apparently recognized the full capacity of that disk. But when you attempted
to boot, the system refused to do so.
If any of the above is significantly incorrect, please set us straight.
It's a puzzle all right Adolfo. Here's a few thoughts...
1. You didn't indicate the make of your primary HD. If it's a Western
Digital, make sure that its jumper setting is set to Cable Select, or if a
non-CS configuration, that it's set to Dual (Master). WD drives are unusual
in that they have this Single jumper setting which many users forget to
change when they add another IDE device on the same cable.
2. Check the pins on your second HD to determine if there are any bent or
otherwise deformed or even missing pins. I recently ran into just that kind
of situation where a HD acted erratically until we determined the problem
was with one of its deformed connecting pins.
3. Ensure that the jumper setting on your second HD is correct and make sure
the cable connection is properly seated.
BTW, R. C. White's recommendation that one should use XP's Disk Management
utility to partition/format one's HD is a good one. It's a tried & true
program, designed to work flawlessly in an XP environment, and relatively
easy to use. In my opinion it should be used in lieu of formatting utility
provided by the HD manufacturer. In addition to the command mentioned by R.
C. White, you can also access the DM utility through Start > right-click My
Computer > Manage > Computer Management > Disk Management.
Art