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MB800H

ATX Mainboard P-IV with 3*ISA/3*PCi slots LAN VGA
  • Manufacturer not specified
  • Category: ISA Mainboards
  • The MB800H is an industrial-grade ATX motherboard designed for Intel® Pentium 4 processors. It integrates legacy ISA expansion with modern PCI and AGP interfaces, providing a versatile platform for industrial automation, embedded control, and long-life computing applications. Built around the Intel 845G chipset, it supports DDR SDRAM, onboard VGA, LAN, and AC97 audio, offering a balanced combination of performance, reliability, and expandability.
- Intel 845G Chipset Architecture:
Combines the Intel 845G Northbridge and ICH4 Southbridge, supporting Pentium 4 CPUs with 400/533 MHz front-side bus (FSB).
- Processor Support:
Compatible with Intel Pentium 4 processors from 1.7 GHz up to 2.6 GHz and above, using Socket 478 interface.
- Integrated Graphics:
AGP 4X integrated graphics with support for CRT, LVDS, TMDS, and TV-out interfaces.
- DVMT up to 64 MB shared memory
- Resolutions up to 2048×1536 @ 60 Hz (dual-channel digital display)
- Memory Support:
Two 184-pin DDR DIMM slots supporting up to 2 GB DDR200/266 non-ECC SDRAM.
- Expansion Capability:
- 1 × AGP slot (for special DVI card)
- 3 × PCI slots
- 3 × ISA slots
- 1 × MicroPCI socket
- Networking:
- Primary LAN: 10/100Base-TX Ethernet (ICH4 integrated)
- Optional secondary LAN: Intel 82540EM (Gigabit) or 82551QM (10/100 Mbps)
- Audio:
Integrated AC97 audio codec with Line-In, Line-Out, and Mic connectors.
- I/O Interfaces:
- 4 × USB 2.0 ports (480 Mbps)
- 4 × TTL Digital I/O (4 input / 4 output)
- 3 × RS-232 ports + 1 × RS-232/422/485 configurable port
- 1 × Parallel port (SPP/EPP/ECP)
- 1 × IrDA header
- Storage Interfaces:
- 2 × IDE connectors (UDMA33/66/100, PIO mode 4)
- 1 × FDD connector (supports 3.5"/5.25" drives, 3-mode)
- DiskOnChip socket (2 MB–144 MB flash disk support)
- System Monitoring & Reliability:
- Winbond W83627HF hardware monitor for CPU/system temperature and voltage
- 256-level watchdog timer for system recovery
- Power Supply:
Standard ATX 20-pin (J10) and ATX 12V (J12) connectors
- Industrial Design:
Long lifecycle support, legacy ISA compatibility, and robust component selection for 24/7 operation.

Country of origin: Taiwan R.O.C.

Customs tariff number: 8473 3020 000

Comprehensive Product Summary – MB800H Industrial ATX Mainboard




### 1. Product Overview

Product Name: MB800H Industrial Motherboard
Model: MB800H
Series: MB800 Series – Pentium 4 Industrial ATX Mainboards
Article Number: MB800H
Manufacturer: IBASE Technology Inc. (OEM)
Chipset Platform: Intel® 845G + ICH4
Form Factor: ATX (305 mm x 244 mm / 12" x 9.6")

The MB800H is an industrial-grade ATX motherboard designed for Intel® Pentium 4 processors. It integrates legacy ISA expansion with modern PCI and AGP interfaces, providing a versatile platform for industrial automation, embedded control, and long-life computing applications. Built around the Intel 845G chipset, it supports DDR SDRAM, onboard VGA, LAN, and AC97 audio, offering a balanced combination of performance, reliability, and expandability.




### 2. Key Features

- Intel 845G Chipset Architecture:
Combines the Intel 845G Northbridge and ICH4 Southbridge, supporting Pentium 4 CPUs with 400/533 MHz front-side bus (FSB).
- Processor Support:
Compatible with Intel Pentium 4 processors from 1.7 GHz up to 2.6 GHz and above, using Socket 478 interface.
- Integrated Graphics:
AGP 4X integrated graphics with support for CRT, LVDS, TMDS, and TV-out interfaces.
- DVMT up to 64 MB shared memory
- Resolutions up to 2048×1536 @ 60 Hz (dual-channel digital display)
- Memory Support:
Two 184-pin DDR DIMM slots supporting up to 2 GB DDR200/266 non-ECC SDRAM.
- Expansion Capability:
- 1 × AGP slot (for special DVI card)
- 3 × PCI slots
- 3 × ISA slots
- 1 × MicroPCI socket
- Networking:
- Primary LAN: 10/100Base-TX Ethernet (ICH4 integrated)
- Optional secondary LAN: Intel 82540EM (Gigabit) or 82551QM (10/100 Mbps)
- Audio:
Integrated AC97 audio codec with Line-In, Line-Out, and Mic connectors.
- I/O Interfaces:
- 4 × USB 2.0 ports (480 Mbps)
- 4 × TTL Digital I/O (4 input / 4 output)
- 3 × RS-232 ports + 1 × RS-232/422/485 configurable port
- 1 × Parallel port (SPP/EPP/ECP)
- 1 × IrDA header
- Storage Interfaces:
- 2 × IDE connectors (UDMA33/66/100, PIO mode 4)
- 1 × FDD connector (supports 3.5"/5.25" drives, 3-mode)
- DiskOnChip socket (2 MB–144 MB flash disk support)
- System Monitoring & Reliability:
- Winbond W83627HF hardware monitor for CPU/system temperature and voltage
- 256-level watchdog timer for system recovery
- Power Supply:
Standard ATX 20-pin (J10) and ATX 12V (J12) connectors
- Industrial Design:
Long lifecycle support, legacy ISA compatibility, and robust component selection for 24/7 operation.




### 3. Technical Specifications

| Category | Specification |
|---------------|------------------|
| CPU Socket | Socket 478 |
| Supported CPUs | Intel Pentium 4 (1.7–2.6 GHz+) |
| FSB | 400 MHz (100×4) / 533 MHz (133×4) |
| Chipset | Intel 845G + ICH4 |
| L2 Cache | 128K / 256K / 512K (CPU integrated) |
| BIOS | Award BIOS, ACPI supported |
| Memory | 2 × DDR DIMM slots, up to 2 GB DDR200/266 non-ECC |
| Graphics | Intel 845G integrated AGP 4X, DVMT 64 MB shared |
| Display Interfaces | CRT, LVDS, TMDS, TV-out |
| Max Resolution | 2048×1536 @ 60 Hz |
| LAN | 10/100Base-TX (ICH4 integrated); optional Gigabit (Intel 82540EM) |
| Audio | AC97 Codec, Line-In/Out, Mic |
| Serial Ports | 3 × RS-232, 1 × RS-232/422/485 |
| Parallel Port | 1 × SPP/EPP/ECP |
| USB | 4 × USB 2.0 ports |
| Digital I/O | 4 × TTL input, 4 × TTL output |
| IDE Interface | 2 × IDE (UDMA33/66/100) |
| FDD Interface | 1 × 34-pin, supports 2 drives |
| Expansion Slots | 1 × AGP, 3 × PCI, 3 × ISA, 1 × MicroPCI |
| Watchdog Timer | 256-level, system reset capable |
| SSD Interface | DiskOnChip (2–144 MB) |
| Power Connectors | ATX 20-pin (J10), ATX 12V (J12) |
| Form Factor | ATX |
| Dimensions | 305 mm × 244 mm (12" × 9.6") |




### 4. Functionality

The MB800H serves as a high-performance industrial motherboard integrating both legacy and modern interfaces. It operates as the central control platform in embedded systems, industrial automation, kiosks, and machine control environments.

Operational Overview:
- The Intel 845G chipset manages CPU, memory, and graphics operations, while the ICH4 handles I/O, storage, and peripheral control.
- The integrated VGA controller supports multiple display outputs, including CRT and LVDS, suitable for industrial displays.
- The onboard LAN provides reliable Ethernet connectivity, with optional Gigabit support for high-speed networking.
- The watchdog timer ensures system reliability by automatically resetting the system in case of software lock-up.
- The digital I/O interface allows direct control of external devices, sensors, or relays.

Typical Applications:
- Industrial automation controllers
- Embedded systems and kiosks
- Machine vision and process control
- Legacy equipment requiring ISA expansion
- Networked industrial PCs with long lifecycle support

Compatibility:
- Supports Windows and Linux operating systems compatible with Intel 845G chipset drivers.
- Fully compatible with standard ATX chassis and power supplies.




### 5. Components & Accessories

Included Items:
- MB800H Industrial Motherboard
- User’s Manual
- 1 × IDE Ribbon Cable
- 1 × Floppy Ribbon Cable
- 1 × Serial Port Bracket (1 port)
- 1 × Serial Port Bracket (2 ports)
- 1 × Driver & Utility CD (chipset drivers, flash utility)

Optional Add-ons:
- MicroPCI daughter cards (VGA, LAN, IEEE1394, SCSI, combo)
- Secondary Gigabit LAN module
- DiskOnChip flash storage module
- Additional USB or serial expansion brackets

Connectors Overview:
- IDE1/IDE2: Primary/Secondary IDE
- FDD1: Floppy Drive
- FAN1/FAN2/FAN3: CPU/System/Chassis Fan (12V)
- J1: PS/2 Keyboard/Mouse
- J2: USB + LAN1 RJ45
- J3/J11/J15/J16: Serial Ports
- J4: Parallel Port
- J5: VGA CRT
- J6: Gigabit LAN RJ45
- J7: Audio (Line In/Out, Mic)
- J8: IrDA
- J10/J12: ATX Power Connectors
- J13: MicroPCI Socket
- J14: CD-In Audio
- J17: Wake-on-LAN
- J18: Digital I/O (4 in / 4 out)
- J19: USB (3rd & 4th ports)
- J20: System Function Header (Power LED, Reset, HDD LED, Speaker)




### 6. Installation & Setup

CPU Installation:
- Supports Socket 478 Pentium 4 processors.
- Lift the retention lever to 90°, align CPU notches, insert, and lock.
- Ensure full contact between CPU and heatsink to prevent overheating.

Power Connection:
- Connect both J10 (20-pin ATX) and J12 (4-pin ATX 12V) for stable operation.

Memory Installation:
- Two DDR DIMM slots support 64 MB to 1 GB modules each.
- Only JEDEC-compliant DDR modules are supported.

MicroPCI Card Installation:
- Insert at a 30° angle, press down until locked, and secure with screws.

Jumper Configuration:
- JP3–JP5: COM2 RS232/422/485 mode selection
- JP6–JP10: VGA signal source (onboard or MicroPCI)
- JP12: DiskOnChip address select (default D8000–DFFFF)
- JP14: Gigabit LAN enable/disable
- JP15: COM4 RI/Voltage selection (RI/5V/12V)
- JP17: Clear CMOS (disconnect power before use)

System Function Header (J20):
- Provides connections for Power LED, Reset Switch, Power Switch, HDD LED, and Speaker.




### 7. Performance & Capabilities

- Processing Power: Supports Pentium 4 CPUs up to 2.6 GHz+, suitable for demanding industrial tasks.
- Memory Bandwidth: Dual DDR200/266 channels up to 2 GB total capacity.
- Graphics Performance: Integrated AGP 4X controller with DVMT 64 MB shared memory, supporting high-resolution dual displays.
- Networking: Reliable 10/100 Ethernet with optional Gigabit upgrade.
- I/O Throughput: USB 2.0 ports deliver up to 480 Mbps transfer rate.
- Storage Performance: IDE UDMA100 interface supports modern and legacy drives.
- Reliability: 256-level watchdog timer ensures system recovery from software failures.
- Thermal & Voltage Monitoring: Real-time monitoring via Winbond W83627HF.

Limitations:
- No support for DDR333 or higher memory speeds.
- AGP slot reserved for special DVI card only.
- Limited to 2 GB total system memory.
- Legacy ISA bus limits maximum data throughput for modern peripherals.




### 8. Standards & Compliance

- Form Factor: ATX standard (305 × 244 mm)
- Electrical Standards: ATX 12V power specification compliant
- USB Compliance: USB 1.1 and 2.0 compliant
- Audio Compliance: AC97 codec standard
- Ethernet Compliance: IEEE 802.3 10/100Base-TX, optional 1000Base-T
- Serial Communication: RS-232/422/485 standards supported
- Environmental & Safety: Designed for industrial environments with extended lifecycle components
- BIOS: Award BIOS with ACPI and Plug-and-Play support




### 9. Additional Information

Warranty & Support:
- OEM industrial-grade warranty (typically 1–3 years depending on distributor).
- Long-term product availability and lifecycle support for industrial customers.
- Technical support includes BIOS updates, driver downloads, and configuration assistance.

Maintenance:
- Regular cleaning of CPU and system fans recommended.
- Ensure adequate airflow in chassis for thermal stability.
- Periodic BIOS and driver updates to maintain compatibility.

Software & Utilities:
- Supplied CD includes chipset drivers, flash memory utility, and documentation.
- Compatible with Windows and Linux operating systems supporting Intel 845G chipset.

Reliability Features:
- Watchdog timer with programmable intervals (1–255 seconds).
- Hardware monitoring for voltage, temperature, and fan speed.
- Wake-on-LAN and power management support for remote system control.

Lifecycle & Industrial Suitability:
- Designed for long-term deployment in industrial and embedded environments.
- Legacy ISA support ensures compatibility with older control cards.
- Stable chipset and BIOS platform for extended production use.




### Summary

The IBASE MB800H Industrial ATX Motherboard is a robust, feature-rich platform engineered for industrial computing applications requiring both legacy and modern interfaces. With its Intel 845G chipset, Socket 478 Pentium 4 CPU support, integrated VGA, LAN, and AC97 audio, it provides a balanced solution for embedded control, automation, and industrial PC systems. Its combination of 3 ISA, 3 PCI, and 1 AGP slot ensures compatibility with a wide range of expansion cards, while the inclusion of watchdog timer, hardware monitoring, and digital I/O enhances system reliability and control.

Compact yet powerful, the MB800H remains a dependable choice for OEMs and system integrators seeking a long-life industrial motherboard with proven stability and comprehensive connectivity.

No manuals/catalogs available.

No accessories available.