Lanner Electronics EM-500
Logs
chipChipset
cpuSocket
Socket 7 (PGA321)
speedFSB speeds
50MHz60MHz66MHz
moboForm factor
EBX/Little Board/Biscuit SBC 5.25" (max 203 x 146 mm)
dimDimensions
203mm x 146mm
ramMax VRAM size
2MB
chipCache
512KB
ramMax RAM size
128MB
ramRAM types
72-pin FPM72-pin EDO
pwrPSU connector
OEM/Proprietary
connI/O ports
1x 
Disk-on-Chip Socket
1x 
Floppy interface
1x 
IDE interface
1x 
IrDA
1x 
PS/2 mouse
1x 
RJ-45 LAN
2x 
Serial
2x 
USB 1.x
1x 
VGA
cardExpansion slots
1x 
32-bit PCI
wrench Known issues
  • DALLAS RTC coin cell empty

The motherboard's Real-Time Clock (RTC) chip contains a coin cell that may have drained, causing the loss of CMOS settings. This can result in an inability to save settings, causing system instability or failure to boot. To fix this, the RTC chip can be replaced with an equivalent or repaired by cutting into it and soldering on a new external coin cell holder. Replacement guides are available at https://github.com/necroware/nwX287 or https://github.com/necroware/nw12887, depending on the actual chip used.

Last updated 2025-12-11T05:53:52Z
Board info score is 8.2/10
bios 1 BIOS file available

vendor Award - 1 entry

POST string
Note
Core Ver.
BIOS Ver.
Logs
POST string
Note
Core version
BIOS version
Logs
drv 13 drivers available
Name
Version
Arch
OS support
Size
Filename
Name
Version
6.2
Arch
x86
OS support
Linux MS-DOS NetWare Server 3 NetWare Server 4 Netware Client32 OS/2 2.x Windows 2000 Windows 9x Windows NT 4.0
Size
64.29MB
Filename
Name
Version
3.00
Arch
x86
OS support
OS/2 Warp 3.x Windows NT 3.5x Windows NT 4.0
Size
1.167MB
Filename
Name
Version
2003
Arch
x86
OS support
MS-DOS OS/2 2.x
Size
554.797KB
Filename
Name
Version
2003
Arch
x86
OS support
Windows 2000
Size
12.279MB
Filename
Name
Version
2003
Arch
x86
OS support
Windows 9x
Size
1.422MB
Filename
Name
Version
2003
Arch
x86
OS support
Windows 9x
Size
8.693MB
Filename
Name
Version
2003
Arch
x86
OS support
Windows 9x
Size
1.525MB
Filename
Name
Version
2003
Arch
x86
OS support
Windows 9x
Size
8.909MB
Filename
Name
Version
2003
Arch
x86
OS support
Windows NT 4.0
Size
7.553MB
Filename
Name
Version
11.1
Arch
x86 , x64
OS support
MS-DOS Windows 2000 Windows 9x Windows XP/2k3
Size
36.353MB
Filename
Name
Version
3.7B / 3.7D
Arch
x86
OS support
MS-DOS NetWare Server 3 NetWare Server 4 OS/2 Warp 3.x Windows 3.1x Windows 9x Windows NT 3.5x
Size
1.58MB
Filename
Version
Arch
OS support
Size
Filename
Version
Arch
x86
OS support
Windows 9x
Size
577.777KB
Filename
Version
Arch
x86
OS support
Windows 9x
Size
569.737KB
Filename
doc 2 board documents available
Release date
File
Logs
Release date
File
Logs
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
File
Logs
Chip
Release date
File
Logs
Family
Release date
File
Logs
Family
Release date
1997-06
File
Logs
Family
Release date
1998-01
File
Logs
image1 Image 1 of 2 (Microhouse)
image2 Image 2 of 2 (Lanner Electronics)

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