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Part Number LS855
Manufacturer RADISYS
Category Single Board Computers
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Lead Time Request Quote


Endura 855GME uATX Pentium M Motherboard

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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.

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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.

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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 LS855? We can help you find it at a competitive price!


Form Factor ATX
Ethernet Chipset Intel 82551
System Chipset Intel ICH4
Video Chipset Intel 855GME
Audio AC97, rear connectors for mic/line out/line in
BIOS Phoenix FirstBIOS™ notebook Pro-based
Board Type Micro-ATX
Chipset Intel® 855GME chipset with Intel ICH4
CPU Intel Pentium M and Celeron M, 479-pin PGA socket, 400MHz system bus
Expansion 3x dedicated bus master 32-bit PCI 2.2 slots
FDD 1x floppy drive
I/O 6x USB 2.0, GPIO, x2 Serial, Parallel, PS/2
IDE Two Ultra ATA100 interfaces via 40-way boxed header
LAN Intel 82551ER, Intel 82551QM
Memory 2 sockets for DDR200, DDR266, DDR333 DIMM modules
Monitoring Voltage, temp., fans, anti-tamper
Power Supply Must conform to ATX12V specification, no requirement for -5V supply
Processor Intel Pentium M
Video Integrated Intel Extreme graphics, LVDS, AGP/ADD, 1600 x 1200 pixels with 32-bit color support at 85Hz
Watchdog programmable watchdog timer


  • "Silent" operation
  • Advanced performance with Intel Pentium M and Celeron M processors
  • Designed for low power applications
  • Dual display interfaces
  • Low cost of ownership


Download "RADISYS-LS855-datasheet.pdf" (171 KiB)

Extracted Text

[Print This Datasheet] Endura LS855 Endura 855GME uATX Pentium M Motherboard ADVANCED PERFORMANCE Based on Intel mobile technology, the Endura LS855 motherboard is targeted specifically at low power embedded computing applications. The Intel Pentium M processor has been designed with a FEATURE SUMMARY high performance, low power micro-architecture and includes a power optimized 400MHz System Bus and 1MB level 2 cache. Using Enhanced Intel SpeedStep™ technology, this enables the Pentium M to � Designed for low power achieve mobile performance at very low power using real-time dynamic switching of the voltage and applications frequency between multiple performance modes. “SILENT” OPERATION The Endura LS855 is able to provide automatic fanspeed control based on thermal monitoring under control of the BIOS software. This is ideal for “silent PC” applications where the processor fan can be run at very low speed using subject to the performance demands of the application. DUAL DISPLAY INTERFACES The on-board LVDS flat panel display interface can be used in conjunction with the integrated Intel Extreme Graphics 2 analog VGA output to provide dual independent display interfaces. With the use of an ADD card it is also possible to provide a digital display interfaces such as DVI or a TV-out interface. This is particularly useful for transaction terminal applications such as ATMs and kiosks, point of sale applications and industrial control systems. LOW COST OF OWNERSHIP With long life products (5+ years), revision control, product life cycle management, engineering support, high quality design and manufacture, RadiSys is able to meet the true needs of the embedded market place, enabling customers to achieve a low cost of ownership with Endura motherboards. Endura LS855 Specifications FEATURE FUNCTION DESCRIPTION PROCESSOR Type Support for Intel® Pentium® M and Celeron® M processors Socket 479-pin PGA socket FSB 400MHz system bus CHIPSET Type Intel® 855GME chipset with Intel ICH4 MEMORY Type Two sockets for DDR200 (PC1600), DDR266 (PC2100) and DDR333 (PC2700) DIMM modules Capacity Up to 2GB of system memory ECC Standard and ECC memory support VIDEO Type Integrated Intel® Extreme graphics 2 Resolution 1600 x 1200 pixels with 32-bit color support at 85Hz LVDS On-board 24-bit single channel LVDS flat panel interface 30-pin shielded connector for VDL / VCL 7-pin backlight control connector (DBL) AGP/ADD AGP 4X / ADD slot with integrated retension mechanism Dual DVO channels (single or wide) Supports LVDS, DVI, DFP, TV-out via ADD cards AUDIO AC97 Analog Devices AD1885 for AC97 v2.1 CODEC Rear Connectors Mic, Line Out and Line In jacks on rear panel On-board Connectors CD In, AUX In, Line Out ATAPI connectors on- board NETWORK Controllers Intel 82551ER for single 10/100 Ethernet (without Wake on LAN not support) Intel 82551QM for single 10/100 Ethernet (with Wake on LAN support) Connectors RJ45 rear panel connectors, on-board header for external LEDs EXPANSION PCI 3 dedicated bus master 32-bit PCI 2.2 slots POWER MANAGEMENT PCI PME, ACPI 1.0b, APM 1.2 SYSTEM MANAGEMENT Monitoring Voltage, temperature and fans Automatic fanspeed control based on thermal monitoring Anti-tamper security Watchdog Programmable watchdog timer SMbus SMBus header POWER SUPPLY Type Support for hard- and soft-switched power supplies Must conform to ATX12V specification, no requirement for -5V supply BATTERY Lithium coin cell (5 years operating life typical) BIOS Customizable Phoenix FirstBIOS™ notebook Pro-based Customizable logo and BIOS settings I/O USB Six USB 2.0 ports – four on rear I/O panel and two on headers GPIO 13-bit General Purpose I/O header with LCD character display support Serial Ports COM1 on 9-pin D-type, COM2 via 10-way header Parallel Port 25-pin D-type supporting bi-directional EPP and ECP modes Keyboard & Mouse Swappable PS/2 connectors, on-board header connectors Front Panel Connectors for power control and status, Reset, LAN LEDs, IDE activity LED IDE Devices Two Ultra ATA100 interfaces via 40-way boxed header Device Types Supports ATAPI, LS120 and ZIP drives FLOPPY Types Supports standard 3.5" and 3-mode floppy drives OPERATING SYSTEMS Windows 2000 XP XPe Linux Others upon request SAFETY COMPLIANCE Evaluated in accordance with UL60950, EN60950 and IEC60950 EMC COMPLIANCE Evaluated in accordance with EN55022, EN55024 and FCC Part 15 Class B PHYSICAL SPECIFICATIONS ENVIRONMENT Temperature Operating 0˚C to 55˚C Storage -40˚C to 85˚C Relative Humidity 5% to 95% non-condensing Ordering Information Call for pricing and availability. Refer to the order codes below. DESCRIPTION: LS855 with 82551ER Ethernet controller (without WoL) and no processor, RoHS Product Code: LS1L03-0-0 LS855 with 1.6GHz Pentium M, RoHS Product Code: LS1L03-P16-0 LS855 with 1.6GHz Pentium M and 512MB memory, RoHS Product Code: LS1L03-P16-512 LS855 with 82551QM Ethernet controller (with WoL) and no processor, RoHS Product Code LS1W03-0-0 LS855 with 1.8GHz Pentium M 745, RoHS Product Code: LS1W03-P18-0 I/O Shield Product Code ATX-L BG IOSHLD Embedded Processor Support 1.3GHz Celeron M Processor 320 1.6GHz Pentium M Processor 725 1.8GHz Pentium M Processor 745 © 2010 RadiSys Corporation. RadiSys is a registered trademark of RadiSys Corporation. Convedia, Microware and OS-9 are registered trademarks of RadiSys Corporation. Promentum, and Procelerant are trademarks of RadiSys Corporation. *All other trademarks are the properties of their respective owners. All specifications within this document are subject to change without notice. Endura LS855 DATA SHEET | © 2010 RadiSys Corporation * All other trademarks are the properties of their respective owners.

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