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crippled 486

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Posted on Sunday, September 26, 1999 - 3:23 pm:   

I need help with my 486. I have an IBM 80486 with a 1.19G harddrive. I was having problems with the windows settings and getting it to see the network card. I gave up and popped in my boot disk, used fdisk, deleted the primary partition and created a new one. When the point came to reformatt drive c, it only formatted 42 megs. I cannot get it to format (or even"see" ) the remainder of the hard drive. What did I do and how do I fix it so that I can reinstall windows 95? This is my first encounter with a "non-pentium" and I am at a loss.
Posted on Sunday, September 26, 1999 - 3:23 pm:   

If your BIOS doesn't support LBA/TRANSLATE/LARGE feature for disks bigger then 500mb,
you'll have to install a software like DiskManager or EZ-DRIVE.
Visit your HD manufacture web site for support and download.

Posted on Sunday, September 26, 1999 - 3:23 pm:   

Run FDisk again and get it to display the partition information. Are there logical dos drives within an extended dos partition? Was the drive initially drivespaced at all? Follow Fdisk's commands and delete everything then use 100% of the drive to create a new primary partition. You will also need to ensure that the 486 BIOS has support for LBA enabled. Some older 486's do not enable this as a default. Simple Dos6.22 will support drives up to 2 gigs as long as LBA is enabled. Just some ideas to look at. Good luck
Posted on Sunday, September 26, 1999 - 3:23 pm:   

OK, I did as you suggested. There were no logical or extended partitions. I deleted everything and reformatted. I even dug up a partition deletion program (delpart.exe) and used it. When I reformatted, it still only sees a portion of the HD. I ventured into the bios setup somehow and found the following information.
EZBIOS 9.03W 1997 Microhouse International, Inc.
Int l3h Drive #80H
Controlled by EZBIOS
Cylinders 787
Heads 64
Sectors 63
Capacity 1622 MB
Multisector Transfer 16 sector
32 bit Transfer Disabled
Floppy Boot Protect Enabled
Logical Block Address Enabled
63 Sector Data Offset NO

I rebooted and held down the F1 key. I got the following error message: The followin error(s) were detected when the system was started. 301 Keyboard error. Press escape to continue or enter to run configuration utility. I pressed enter and I got four screens pretty standard to the current BIOS screens I am used to. The following were the first four settings.
Processor 80486DX
Math Coprocessor Installed
Video Controller Tseng ET 4000 W32
Hard Drive 0 38 MB (IDE)

Thank you so much for your help have any more ideas? Need any more information?
Posted on Sunday, September 26, 1999 - 3:23 pm:   

Sounds like you're doing all the right things. A couple more ideas. Fdisk and create the 100% primary partition, reboot enter the BIOS setup (I'm assuming the information contained in there regarding the HD has the correct settings....does it have an auto-detect Hard Drive feature?), exit the BIOS by choosing to write to CMOS and exit, then use your bootdisk to boot from on the restart. You have an FDisked drive which requires formatting and if you run format C: it will display the usual messages such as Warning, formatting will remove any data, do you want to continue etc, press Y and then you will know pretty quickly whether the drive is gonna format as 0.038gb or 1.19gb. I'm no techie. These are just things I would be trying if I was having your probs. I would lso have the luxury, which you may not, of checking the drive in another machine to see if it would detect and format properly. If you look at the make and model of the HD you can check on to see if your cylinder, head and sector readings are correct in the BIOS. BTW, you may be able to check the HD on the computer you're posting these messages from. At worst you may be able to format the drive as a 1.19 in another machine and put it back in the 486 if the BIOS info on the drive is correct. Good luck.

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