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Part Number 31412
Manufacturer RADISYS
Category Single Board Computers
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Lead Time Request Quote


Radisys PB3000BX Series (EPC-2321) CPU Board with SCSI, Video, Ethernet

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Our Process

Our Process: Preparation

Once you accept your quote and confirm your order, we prepare by retrieving related parts and components from our inventory. Anything we do not currently have in stock is sourced.

Our Process: Receiving

Upon receipt, all parts are visually inspected for damage and then photographed to document their condition. Parts acquired from vendors must meet our quality standards.

Our Process: Initial Testing
Initial Testing

Industrial computer boards and other parts we are equipped to evaluate are tested to verify functionality and discover possible damage.

Our Process: Refurbishment

Industrial computer boards have all components with low MTBF numbers (such as capacitors and connectors) replaced and are washed in our PCB cleaner to remove dust and grime.

Our Process: Repair

Industrial computer boards are fully diagnosed and repaired by our engineers. Logs of the problems encountered and solutions implemented are recorded.

Our Process: Final Testing
Final Testing

Industrial computer boards have all I/O connections rigorously tested to ensure that everything is working properly before the board is certified as ready to ship.

Our Process: Shipping

After photos are taken to document the exterior condition of the part, it is packaged and sent to the customer. ESD-safe materials are used to protect sensitive equipment on its journey.

Who We Are

Industrial Trading is a website of GID Industrial, an ISO 9001:2015-certified company that has specialized in servicing industrial computer boards and providing other industrial products for sectors including manufacturing, defense, aerospace, entertainment, healthcare, and more by utilizing our combined skills and vast international network of trusted suppliers since our founding in 2015.

Do you need a 31412? We can help you find it at a competitive price!


Addressing Real and protected mode supported; Real address mode: 20-bit. Protected address mode: 16-bit on ISA bus, 32-bit on PCI local bus
Battery CR2032 Lithium (Li/MnO2)
Board size Full Size
Bus Interface AT Bus (98-Pin) fully buffered (8.33 or 11 MHz). PCI Bus (120-Pin) fully buffered (33 MHz)
Cache 256 KB integrated Level 2 write-back cache operating at full clock speed
Chipset Intel 440BX AGPset
Clock/Calendar Embedded Real-Time Clock accurate to +/- 12 minutes/year, at 25° C; includes 256 bytes of CMOS in NVRAM
CPU Embedded Socket
Intel Pentium III processor: 500 MHz and higher. BGA2 package
Data Path 64-bit on-board processor bus at 66 or 100MHz, 32-bit on-board PCI bus at 33 MHz
Ethernet (Optional) Intel 82559 10/100 Mb/sec Ethernet LAN Controller. RJ-45 10/100 Base-T Ethernet connector on the I/O bracket. Ethernet activity LEDs on the I/O bracket.
Flash Memory 4 Mb (512 Kb x 8)
Form Factor 13.28" (337.3 mm) x 4.80" (121.9 mm), PICMG compliant
LAN (Ethernet) Chipset Intel 82559
Memory Two (2) 168-pin sockets organized in two (2) banks, supporting: Up to 512 MB (or higher as technology becomes available), 2/4/8/16/32 x 72, PC100 DIMMs, +3.3 V unbuffered SDRAM, Parity/ECC or Non-Parity, Single bit error correction, double bit detection (ECC mode only)
On Board Interfaces 1x USB, 2x Serial, 1x Parallel, 2x IDE, 1x Floppy, 2x SCSI
optional Features Ultra2 single-channel SCSI, AGP video, 10/100BaseT Ethernet
Processor Intel Pentium III
Rear Panel Ports 1x RJ-45 (LAN), 1x PS/2, 1x VGA
SCSI (Optional) Adaptec AIC-7890 PCI Bus Master Ultra2 SCSI Host Adapter chip. Adaptec AIC-3860 LVD-to-SE transceiver. Ultra2 Low Voltage Differential (LVD) 68-pin D-Sub latching header on the board surface. Wide Ultra Single-Ended (SE) 68-pin D-Sub latching header on the board surface. Dallas DS2118M or Unitrode UCC5630 Ultra2 LVD/SE SCSI terminators. Dallas DS2109 and DS21S07AS SE SCSI terminators.
Standards PICMG
System Chipset Intel 82371EB, Intel 82443BX
Video (Display) Chipset C&T 69000
Video (Optional) CHIPS 69000 HiQVideo Accelerator with 2 MB integrated SDRAM. AGP bus interface. 15-pin female D-Sub connector on the I/O bracket


  • 4 Mb (512 K x 8) boot block flash memory device
  • Altera MAX EMP7128S programmable logic device (for on-board logic)
  • CR2032 lithium (Li/MnO2) coin battery to retain date, time, and CMOS parameters
  • Dallas DS1232 MicroMonitor
  • Floppy disk drive 34-pin male shrouded, latching header on the board surface
  • Four (4) position DIP switch block for elements of system configuration
  • Hitachi H8/3437 system monitoring microcontroller with I2C bus interface
  • IDE / SCSI activity LED 2-pin male header on the board surface
  • Integrated Circuit Systems ICS9148CF-20 clock synthesizer
  • Integrated Circuit Systems ICS9179BF-01 SDRAM clock buffer
  • Intel 440BX AGPset
  • Intel Pentium III processor in the BGA2 package
  • Keyboard / speaker / reset 8-pin male shrouded header on the board surface
  • Maxim MAX1617 Remote/Local Temperature Sensor with SMBus serial interface
  • Maxim MAX3185 230 kbps ESD-protected RS-232 serial port
  • Parallel port 26-pin male shrouded, latching header on the board surface (AT-compatible / bi-directional / enhanced operations)
  • PS/2 keyboard / mouse 6-pin female mini-DIN connector on the I/O bracket
  • SMsC FDC37B787 Super I/O Controller with ACPI support
  • System management bus 4-pin male shrouded, keyed header on the board surface
  • System management power 2-pin male header on the board surface
  • Two (2) 168-pin DIMM sockets for up to 512 MB PC100 +3.3 V unbuffered SDRAM (or higher as technology becomes available)
  • Two (2) EIDE or IDE 40-pin male shrouded, latching headers on the board surface
  • Two (2) serial port 10-pin male shrouded, latching headers on the board surface (one RS-232 only; one RS-232 or RS-422)
  • Two (2) USB 4-pin male shrouded, keyed headers on the board surface

Related Products

PICMG Pentium Single Board Computer
Radisys 063-00247-0004 CPU Board - PICMG Pentium Single Board Computer
486DX Single Board Computer
RADISYS 30772-020 Full-size CPU Board with VGA, LAN, Dual SCSI
Radisys 31412-003 CPU Board. SCSI | Video | Ethernet
Radisys 31412-004 CPU Board. SCSI | Video | Ethernet


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