Hard Disk is not detected, as well as I cant seem to get past the unsuccessful start - the last know good/safe mode screen. The pc locks up. I have changed the memory which is being detected and I have swapped out three hard drive. I am thinking the processor is bad, only because of the beep sequence which it beeped for processor, hard drive and memory. i cant very well toss it for itas a production (work) pc..any thoughts any1 more info plz.

specs on the machine??
OS?
when did this happen any new hardware/software??Serial Number: 20359500001

Operating System Windows NT 4.0 WORKSTATION w/ Service Pack 4A Media Kit 1 OSS001228-00 link
Processor Pentium III 600 100FSB CPUs 1 CPU001475-00 link
Memory 16M x 64 (128MB) 1 MOD001358-00 link
Hard Drive Samsung Voyager 6 Plus 8.4GB ATA66 IDE HDD 1 HDI001310-00 link
CD-ROM/DVD Drive NEC 40x IDE Tray Load 3001/GEN CD Rom Drive 1 CDI001155-01 link
Floppy Drive Sony 3.5 in. Floppy Drive 1 FDD001009-02 link
Video Card Diamond Stealth III S540 Savage 4Pro 16MB SDRAM 2x/4x AGP 1 VCD001354-01 link
Network Interface Card 3Com 3C905C 10/100 with Integrated MBA Tornado 1 NWO001182-00 link
Misc I/O 104 Key Enhanced PS/2 Keyboard 1 KBR001087-00 link
Misc I/O Microsoft Intellimouse 1 MOU001015-02 link
Misc I/O Black Mouse PAD w/ micronpc.com Logo 1 MOU001037-00 link
Case Palo Alto ATCX MT Side Cover #2/DT TOP 1 CSE001090-01 link
Case Palo Alto Mini Tower ATX 200W 1 CSE001492-03 link
Software Symantec™ Norton AntiVirus™ 5.0 1 SFO002050-00 link
Software Yamaha YMF740 (DS-1) Driver CD 1 SFD001011-02 link
Software Microsoft Intellimouse Driver 3.5 in. Floppy (English) 1 SFO001446-04 link
Software PIII Driver Utility Disk 1 SFD001027-00 link
Software Microsoft® Office 97 Professional Edition 1 SFO001470-02 link
Software Microsoft Internet Explorer 5.0 1 SFO002103-00 link
Software Mrestore Desktop Version 1 SFO002108-00 link
Software MPrevent - Auto Repair System 1 SFO002130-00 link
Software Service Pack 5 for NT 4.0 SERVER 1 SFO002147-00 link
Software Micron Customer Resource Center CD 1 SFO001993-03 link
Warranty MICRON 5/3 YEAR POWER WARRANTY 1 WAR001002-05
Installation Service MICRON 5/3 DESKTOP LIMITED WARRANTY 1 LAB001078-02
Installation Service MICRON UNIVERSITY FLYER 1 FLY001105-00
Software 3COM 3C90x NIC Family Media Kit 1 MED001271-00 link
Case Complex Bezel Assembly Tray Load 1 BZL001012-03 link
Software Diamond Stealth III Savage 4 Driver/Manual CD 1 MED001274-01 link
Motherboard Seattle 2 P II 440BX ATX mboard w/ Integrated Comp (Millennia Max and ClientPro CS - SE440BX2) 1 MBD001109-
new hard drive and memory..in which it wont let me do anything in the BIOS......I thinks this thing is hosed?how old is it??