Thanks to all who've responded.
For info: CPU is 400Mhz Celeron w/Intel 440BX PPFG Rev 3 MB (Although I've yet to find the exact product at Intel's site)and Award BIOS Ver 4.51 PG.
HD back online. Short version: Set HD to "Cable Select"; Reset CMOS; Although BIOS read drive as "none", Western Digital (WDC) Software did. Reset MBR and ODO Overlay; Re-pinned drive back to "Alternate Setting" as Master; CPU and BIOS now reads.
Follow on: Repartitioned drive into 3 FAT32 partitions using updated FDISK & formatted. Reloaded Win98SE which works fine. However, W2K reads ALL partition (including the first partition actually running 98SE) as "Unformatted or Damaged". If I try to format it using W2K it gets to 99% and then errors to "Unable to Format..." According to MS Article 241389, the drive has too many "hard-linked" partition tables. At least that's my interpretation. I've partitioned this drive several times using WDC software, FDISK (upgraded) and a Partition Manager. Somewhere along the way the partition table sector has gotten corrupted beyond effective use.
My approach now is to use WDC software and re-write the drive with "zeros" then start over. I've a question in to WDC about this.
Also, as it seems, according to my research, I can only make each partition no more that 32Gb.
Objective: Install Win98SE, W2K and WinXP_Pro on the same drive.
I've had Win98SE and W2k working on a 8.4Gb Seagate drive, each in it's own partition; had WinXP Pro on this 80Gb (WDC) (all with FAT32); XP worked great as a stand alone but everything starting down hill when I tried fix the Boot.ini file to recognize all 3 OS's.
As for the CPU, it had no problem with either HD or OS.
Again, thanks for the suggestions. As you can tell, I'm a novice. I would like to get this unit working before moving on to a 'better' unit and really destroying it. Thanks!
inmoncolley