Zenith Express 5800 LS2400
An early Slot-1 machine with server capabilities, sold
as a server usually for small companies. As for late 1990s, this server
was quite powerful - a Pentium II 350MHz processor, RAM in 4 DIMM sticks
(usually 64 or 128MB), SCSI and dual-processor upgrade possibilities.
The machine was sold with a variety of systems, usually starting from
DOS (then administrators installed Novell), Windows 95 or Windows NT.
The Express series was developed by Zenith, Bull, Packard-Bell and Nec, depending on time when the company was taken over by another.
|Year of unit||1998|
|Year of introduction||??|
|CPU||Intel Pentium II 350MHz|
|RAM||128MB (32MBx4, DIMM)|
|Graphics||S3 Trio AGP|
Turtle Beach Aureal PCI board
|System expansion bus||ISA (3 slots)
PCI (4 slots)
|Floppy/removable media drives||3.5" 1.44MB
ATAPI CD-ROM drive
3.5" hard drive drawer
|Hard disk:||20GB Seagate PATA|
|Longshine LCS-8034 VIA network adapter|
|Non-standard expansions:||Possible upgrade with 2nd CPU with MMU board|
|Operating system(s):||Windows NT.|
The unit has been bought in late 1990s as a server for a
small web company. It was primarily equipped with 9GB SCSI hard drive
and was ready to operation. Because it was used until 2015, most of its
components have been replaced as a result of a wear-off.
And here we have the example of Theseus Ship Paradox: If we replace all components, is the machine still original?
First, the power supply blown, it was replaced around 2000 (and one more time later). Then, the mainboard, and replacement mainboard has been installed which was PC-Chips M720, a much worse board. The video board - AGP S3 Trio3D, was probably added too as well as Longshine network board.
The hard disk drawer for PATA was added in replacement for probably a tape drive. The SCSI hard drive gave up later, and was replaced around 2003 with 20GB Seagate unit. Then, SCSI controller has been removed.
This configuration was operating until 2015 as a SMB server for a small, few-computer network. Then the server has been finally retired.
So, now we have a similar PC, but with totally different components.
Starts like PC and can be used like a PC. If so extensive cooling is not needed, the rear fan, which is noisy, can be operated from 5V.
https://support.necam.com/Servers/Legacy/LS2400/ - NEC Support and manual for original server.
ftp://ftp.packardbell.com/pub/itemnr_old/ZDSDOCS01470100/pmrbls24.html - Packard-Bell maintenance instruction (local copy).