VersaLogic Wildcat (VL-EPMp-34) Reference guide

Brand: VersaLogic

Model: Wildcat (VL-EPMp-34)

Category: Motherboards

Type: Reference guide

Reference

Manual

DOC. REV. 10/11/2013

VL-EPMp-34

(Wildcat)

Intel Core 2 Duo Based SBC

with Gigabit Ethernet, SATA,

PC/104-Plus, Video, Audio, and

SPX

VL-EPMp-34 Reference Manual ii

WWW.VERSALOGIC.COM

12100 SW Tualatin Road

Tualatin, OR 97062-7341

(503) 747-2261

Fax (971) 224-4708

Notice:

Although every effort has been made to ensure this document is error-free, VersaLogic makes no

representations or warranties with respect to this product and specifically disclaims any implied warranties

of merchantability or fitness for any particular purpose.

VersaLogic reserves the right to revise this product and associated documentation at any time without

obligation to notify anyone of such changes.

PC/104 and the PC/104 logo are trademarks of the PC/104 Consortium.

VL-EPMp-34 Reference Manual iii

Product Release Notes

Rev 2.00 – Minor changes to improve manufacturability. No customer impact.

Rev 1.00 – Initial commercial release.

Support Page

The VL-EPMp-34 support page, at http://www.versalogic.com/private/wildcatsupport.asp, contains

additional information and resources for this product including:

 Reference Manual (PDF format)

 Operating system information and software drivers

 Data sheets and manufacturers’ links for chips used in this product

 Photograph of the circuit board

 BIOS information and upgrades

 Utility routines and benchmark software

Note: This is a private page for VL-EPMp-34 users that can be accessed only be entering this address

directly. It cannot be reached from the VersaLogic homepage.

The VersaTech KnowledgeBase is an invaluable resource for resolving technical issues with your

VersaLogic product.

VersaTech KnowledgeBase

VL-EPMp-34 Reference Manual iv

Contents

Introduction ................................................................................................................... 1

Description .......................................................................................................................... 1

Features and Construction ..................................................................................... 1

Technical Specifications ..................................................................................................... 2

VL-EPMp-34 Block Diagram ............................................................................................. 3

Thermal Considerations ...................................................................................................... 4

CPU Die Temperature ........................................................................................... 4

Model Differences ................................................................................................. 4

RoHS Compliance .............................................................................................................. 4

About RoHS ........................................................................................................... 4

Warnings ............................................................................................................................. 5

Electrostatic Discharge .......................................................................................... 5

Lithium Battery ...................................................................................................... 5

Handling Care ........................................................................................................ 5

Technical Support ............................................................................................................... 6

Repair Service ........................................................................................................ 6

Configuration and Setup ............................................................................................... 7

Initial Configuration ........................................................................................................... 7

Basic Setup ......................................................................................................................... 7

CMOS Setup ....................................................................................................................... 9

Operating System Installation ............................................................................................. 9

Physical Details ........................................................................................................... 10

Dimensions and Mounting ................................................................................................ 10

CBR-3406 Dimensions ........................................................................................ 11

Hardware Assembly ............................................................................................. 12

Stack Arrangement Example ............................................................................... 12

External Connectors ......................................................................................................... 13

VL-EPMp-34 Connector Locations – Top .......................................................... 13

VL-EPMp-34 Connector Locations – Bottom ..................................................... 14

VL-EPMp-34 Connector Functions and Interface Cables ................................... 15

Connector Locations – VL-CBR-3406 ................................................................ 16

CBR-3406 Connector Functions and Mating Connectors ................................... 16

Jumper Blocks .................................................................................................................. 17

Jumpers As-Shipped Configuration ..................................................................... 17

Jumper Summary ................................................................................................. 18

System Features .......................................................................................................... 19

Power Supply .................................................................................................................... 19

Power Connectors ................................................................................................ 19

Power Requirements ............................................................................................ 20

Power Delivery Considerations ........................................................................... 20

CPU ................................................................................................................................... 21

Contents

VL-EPMp-34 Reference Manual v

System RAM ..................................................................................................................... 21

Memory ................................................................................................................ 21

CMOS RAM ..................................................................................................................... 21

Clearing CMOS RAM ......................................................................................... 21

CMOS Setup Defaults ...................................................................................................... 21

Default CMOS RAM Setup Values ..................................................................... 22

Primary and Backup BIOS ................................................................................................ 22

Real Time Clock ............................................................................................................... 22

Setting the Clock.................................................................................................. 22

Watchdog Timer ............................................................................................................... 22

Fan/Tachometer Monitor .................................................................................................. 23

Fan/Tach IRQ Code Example .............................................................................. 23

Interfaces and Connectors ......................................................................................... 25

PCI-104 Expansion Bus (JN1) .......................................................................................... 25

I/O Connector (JN2) ......................................................................................................... 25

Serial Port ............................................................................................................ 26

USB Interface ...................................................................................................... 26

Programmable LED ............................................................................................. 27

HD LED ............................................................................................................... 27

Internal Speaker ................................................................................................... 27

Lithium Battery .................................................................................................... 27

Pushbutton Reset ................................................................................................. 28

SATA Ports (JN5) ............................................................................................................ 28

Video Interface ................................................................................................................. 29

Configuration ....................................................................................................... 29

SVGA Output Connector (JN11) ........................................................................ 29

LVDS Flat Panel Display Connector (JN9) ........................................................ 30

Compatible LVDS Panel Displays ...................................................................... 31

Console Redirection ............................................................................................ 31

Ethernet Interface (JN6) ................................................................................................... 32

Ethernet Connector .............................................................................................. 32

Ethernet Status LEDs ........................................................................................... 32

Digital Audio (JN3) .......................................................................................................... 33

MiniBlade (JN7) ............................................................................................................... 33

SPX™ Expansion Bus (JN4) ............................................................................................ 34

VersaLogic SPX Expansion Modules ................................................................. 34

SPI Registers ........................................................................................................ 35

Interrupt Configuration ............................................................................................... 38

Special Registers ........................................................................................................ 39

Product Code Register ...................................................................................................... 39

Revision Level Register .................................................................................................... 40

Special Control Register ................................................................................................... 41

Watchdog Hold Register ................................................................................................... 42

Fan/Tachometer Control Register .................................................................................... 42

Appendix A – References............................................................................................ 43

VL-EPMp-34 Reference Manual 1

Introduction

Description

FEATURES AND CONSTRUCTION

The VL-EPMp-34 is a feature-packed single board computer (SBC) designed for OEM control

projects requiring fast processing and designed-in reliability and longevity (product lifespan). Its

features include:

 Intel Core 2 Duo processor, 2.26

GHz, 1066 MHz FSB, 6 MB cache

 Up to 4 GB DDR3 SODIMM socket

 USB MiniBlade socket

 10BaseT / 100BaseTX / 1000BaseT

Ethernet interface

 Intel GMA 4500 MHD graphics core

 Simultaneous VGA and LVDS

outputs

 PC/104-Plus (PCI) expansion

 Two SATA 3 Gb/s ports

 Four USB 2.0 ports for keyboard,

mouse, floppy, and other devices

 TVS devices for ESD protection

 Watchdog timer

 One RS-232/422/485 serial port

 Vcc sensing reset circuit

 PC/104-compliant

 Field upgradeable BIOS with OEM

enhancements

 External HD Audio compatible

 Customizing available

 SPX interface supports up to four

(external) SPI devices either of user

design or any of the SPX™ series of

expansion boards, with clock

frequencies from 1-8MHz

The VL-EPMp-34 is a PCI-104-compliant single board computer with an Intel Core 2 Duo

processor. The board is compatible with popular operating systems such as Windows, Windows

Embedded, QNX, VxWorks and Linux.

The VL-EPMp-34 features high reliability design and construction, including voltage sensing

reset circuits and current limiting external power rails.

VL-EPMp-34 boards are subjected to 100% functional testing and are backed by a limited two-

year warranty. Careful parts sourcing and US-based technical support ensure the highest possible

quality, reliability, service and product longevity for this exceptional SBC.

Additional I/O expansion is available through the high-speed PC/104-Plus (PCI) connector. The

VL-EPMp-34 is equipped with a multifunction utility cable, VL-CBR-3406 (breakout board),

that provides standard I/O interfaces, including one serial port, four USB ports, two LEDs, and a

pushbutton reset, among others.

1 1

Description

VL-EPMp-34 Reference Manual 2

Technical Specifications

Specifications are typical at 25°C with 5.0V supply unless otherwise noted.

Board Size:

3.55” x 3.775” (PC/104 standard) with connector

overhangs in designated connector areas

Storage Temperature:

-40° C to 85° C

Operating Temperature: (with Windows XP running

with both CPU cores at 1.2GHz/95% utilization with active

2D and 3D video)

VL-EPMp-34S: 0° C to +60° C free air, no airflow

VL-EPMp-34E: -40° C to +85° C free air

Power Requirements: (+5V with 1 GB system DDR3

SO-DIMM, keyboard and mouse, running Windows XP)

VL-EPMp-34S, SR: Idle 2.4A (12W), Typical

3.9A (19.5W), Max 5.4A (27W)

VL-EPMp-34E, ER: Idle1.8A (9 W), Typical 2.6A

(12.8W), Max 3.3A (16.5W)

+3.3V or ± 12V may be required by some

expansion modules

System Reset:

Vcc sensing, resets below 4.70V typ.

DRAM: Up to 4 GB, DDR3 SODIMM, 800 MHz PC3-

6400 or 1067 MHz PC3-8500

Video Interface:

Intel GMA 4500 MHD graphics core

Analog output for VGA

LVDS output for TFT FPDs

Up to 1280 x 1024 (24 bits)

SATA Interface:

Two SATA 3 Gb/s ports

Flash Interface:

One MiniBlade socket, supports USB only

Ethernet Interface:

PCIe based 82574IT supporting autodetect

10BaseT / 100BaseTX / 1000BaseT

Serial Port:

RS-232/422/485, 16C550 compatible, 4-wire

(only CTS and RTS handshaking)

BIOS:

Phoenix Embedded BIOS© with StrongFrame®

Technology and OEM enhancements

Field-upgradeable with Flash BIOS Update Utility

Bus Speed:

PC/104-Plus (PCI): 33MHz

Compatibility:

Embedded-PCI (PCI-104) – full compliance,

3.3V signaling

Weight:

0.230 kg (0.507 lb)

Specifications are subject to change without notice.

Description

VL-EPMp-34 Reference Manual 3

VL-EPMp-34 Block Diagram

Figure 1. System Block Diagram

Intel

Core 2 Duo

Processor

FSB

Intel

GS45

Chipset

Intel ICH9

I/O Controller

Hub

DMI

DDR3

SODIMM

LVDS

SVGA

Mini I/O

LPC47N217

I/O Connector

USB

1-4

Serial

Port

FPGA

SPX

Gigabit

Ethernet

82574IT

Serial ATA

Digital Audio

PC/104-Plus

(PCI)

RJ-45

Mini-

Blade

Clock

SPI

BIOS

LPC

PCIe

Description

VL-EPMp-34 Reference Manual 4

Thermal Considerations

CPU DIE TEMPERATURE

The CPU die temperature is affected by numerous conditions, such as CPU utilization, CPU

speed, ambient air temperature, air flow, thermal effects of adjacent circuit boards, external heat

sources, and many others.

The CPU is protected from over temperature conditions by several mechanisms.

The CPU will automatically slow down by 50% whenever its die temperature exceeds 105° C.

When the temperature falls back below 105° C, the CPU resumes full speed operation.

As a failsafe, if the CPU die temperature climbs above 115° C, the CPU will turn itself off to

prevent damage to the chip.

MODEL DIFFERENCES

VersaLogic offers both standard and extended temperature models of the VL-EPMp-34. The

basic operating temperature specification for both models is shown below.

 VL-EPMp-34S: 0° C to +60° C free air, no airflow

 VL-EPMp-34E: -40° C to +85° C free air

To reliably function at extreme temperatures the extended temperature model specifications

deviate from the standard model in the following ways:

 The DRAM interface is slowed. PC3-6400 memory runs at 600 MHz. PC3-8500

memory runs at 800 MHz.

 The DRAM refresh rates are doubled.

 The Front Side Bus speed is reduced to 800 MHz.

 Maximum processor speed is limited to 1200 MHz.

 The graphics core is limited to 400 MHz.

RoHS Compliance

The VL-EPMp-34 is RoHS-compliant.

ABOUT ROHS

In 2003, the European Union issued Directive 2002/95/EC regarding the Restriction of the use of

certain Hazardous Substances (RoHS) in electrical and electronic equipment.

The RoHS directive requires producers of electrical and electronic equipment to reduce to

acceptable levels the presence of six environmentally sensitive substances: lead, mercury,

cadmium, hexavalent chromium, and the presence of polybrominated biphenyls (PBB) and

polybrominated diphenyl ethers (PBDE) flame retardants, in certain electrical and electronic

products sold in the European Union (EU) beginning July 1, 2006.

VersaLogic Corporation is committed to supporting customers with high-quality products and

services meeting the European Union’s RoHS directive.

Description

VL-EPMp-34 Reference Manual 5

Warnings

ELECTROSTATIC DISCHARGE

Warning! Electrostatic discharge (ESD) can damage circuit boards, disk drives and other

components. The circuit board must only be handled at an ESD workstation. If an

approved station is not available, some measure of protection can be provided by

wearing a grounded antistatic wrist strap. Keep all plastic away from the board,

and do not slide the board over any surface.

After removing the board from its protective wrapper, place the board on a

grounded, static-free surface, component side up. Use an antistatic foam pad if

available.

The board should also be protected inside a closed metallic anti-static envelope

during shipment or storage.

Note: The exterior coating on some metallic antistatic bags is sufficiently conductive to

cause excessive battery drain if the bag comes in contact with the battery.

LITHIUM BATTERY

Warning! To prevent shorting, premature failure or damage to the lithium battery, do not

place the board on a conductive surface such as metal, black conductive foam or

the outside surface of a metalized ESD protective pouch. The lithium battery may

explode if mistreated. Do not recharge, disassemble or dispose of in fire. Dispose

of used batteries promptly and in an environmentally suitable manner.

HANDLING CARE

Warning! Care must be taken when handling the board not to touch the exposed circuitry

with your fingers. Though it will not damage the circuitry, it is possible that small

amounts of oil or perspiration on the skin could have enough conductivity to cause

the contents of CMOS RAM to become corrupted through careless handling,

resulting in CMOS resetting to factory defaults.

Description

VL-EPMp-34 Reference Manual 6

Technical Support

If you are unable to solve a problem after reading this manual please visit the VL-EPMp-34

product support web page below. The support page provides links to component datasheets,

device drivers, and BIOS and FPGA code updates.

The VersaTech KnowledgeBase also contains a wealth of technical information about

VersaLogic products, along with product advisories. Click the link below to see all

KnowledgeBase articles related to the VL-EPMp-34.

If you have further questions, contact VersaLogic Technical Support at (503) 747-2261.

VersaLogic support engineers are also available via e-mail at Support@VersaLogic.com.

REPAIR SERVICE

If your product requires service, you must obtain a Returned Material Authorization (RMA)

number by calling (503) 747-2261. Please provide the following information:

 Your name, the name of your company, your phone number, and e-mail address

 The name of a technician or engineer that can be contacted if any questions arise

 Quantity of items being returned

 The model and serial number (barcode) of each item

 A detailed description of the problem

 Steps you have taken to resolve or recreate the problem

 The return shipping address

Warranty Repair All parts and labor charges are covered, including return shipping

charges for UPS Ground delivery to United States addresses.

Non-warranty Repair All non-warranty repairs are subject to diagnosis and labor charges,

parts charges and return shipping fees. Please specify the shipping

method you prefer and provide a purchase order number for invoicing

the repair.

Note: Please mark the RMA number clearly on the outside of the box before

returning.

VL-EPMp-34 Support Page

VersaTech KnowledgeBase

VL-EPMp-34 Reference Manual 7

Configuration and Setup

Initial Configuration

The following components are recommended for a typical development system.

 VL-EPMp-34 computer

 204-pin SO-DIMM (memory module): DDR3-800 or DDR3-1066

 ATX power supply

 SVGA video monitor

 USB keyboard

 USB mouse

 SATA hard drive

 USB CD-ROM drive

The following VersaLogic cables are recommended.

 CBR-1201 – Video adapter cable

 CBR-3406 – Utility I/O cable and breakout board

 CBR-0701 – SATA data cable

 CBR-1008 – Power adapter cable

You will also need a Windows (or other OS) installation CD.

Basic Setup

The following steps outline the procedure for setting up a typical development system. The VL-

EPMp-34 should be handled at an ESD workstation or while wearing a grounded antistatic wrist

strap.

Before you begin, unpack the VL-EPMp-34 and accessories. Verify that you received all the

items you ordered. Inspect the system visually for any damaged that may have occurred in

shipping. Contact [email protected] immediately if any items are damaged or missing.

Gather all the peripheral devices you plan to attach to the VL-EPMp-34 and their interface and

power cables.

It is recommended that you attach standoffs to the board (see Hardware Assembly) to stabilize

the board and make it easier to work with.

Figure 2 shows a typical start-up configuration.

2 2

Configuration and Setup

VL-EPMp-34 Reference Manual 8

Figure 2. Typical Start-up Configuration

1. Install Memory

 Insert the DRAM module into SO-DIMM socket JN13 on the bottom of the board and

latch it into place.

2. Attach Power

 Plug the power adapter cable VL-CBR-1008 into socket JN8. Attach the motherboard

connector of the ATX power supply to the adapter.

3. Attach Cables and Peripherals

 Plug the video adapter cable VL-CBR-1201 into socket JN11. Attach the video monitor

interface cable to the video adapter.

 Plug the breakout cable VL-CBR-3406 into socket JN2. (The cable and board are

shipped attached.)

 Plug a USB keyboard, USB mouse, and USB CD-ROM drive into socket J2 of the

breakout board.

 Plug the SATA hard drive data cable VL-CBR-0701 into socket JN5 (top or bottom) and

attach a hard drive to the cable.

 Attach an ATX power cable to the SATA hard drive using the VL-CBR-0401 SATA

power adapter cable.

JN5

JN11

JN2

JN8

ATX

Power Supply

Analog SVGA

USB Keyboard

and USB Mouse

SATA

Hard Drive

USB CD-

ROM Drive

OS Installation

CD-ROM

VL-EPMp-34

WILDCAT

CBR-1201

CBR-1008

CBR-3406

CBR-0701

CBR-0401

Configuration and Setup

VL-EPMp-34 Reference Manual 9

4. Review Configuration

 Before you power up the system, double check all the connections. Make sure all cables

are oriented correctly and that adequate power will be supplied to the VL-EPMp-34 and

peripheral devices.

5. Power On

 Turn on the ATX power supply and the video monitor. If the system is correctly

configured, a video signal should be present.

6. Install Operating System

 Install the operating system according to the instructions provided by the OS

manufacturer. (See Operating System Installation.)

Note: If you intend to operate the VL-EPMp-34 under Windows XP or Windows XP

Embedded, be sure to use Service Pack 3 (SP3) for full support of the latest hardware

features.

CMOS Setup

See VersaLogic KnowledgeBase article VT1639 – VL-EPMp-34 Wildcat CMOS Setup

Reference for complete information about CMOS Setup parameters and variations for the VL-

EPMp-34.

Operating System Installation

The standard PC architecture used on the VL-EPMp-34 makes the installation and use of most of

the standard x86 processor-based operating systems very simple. The operating systems listed on

the VersaLogic OS Compatibility Chart use the standard installation procedures provided by the

maker of the OS. Special optimized hardware drivers for a particular operating system, or a link

to the drivers, are available at the VL-EPMp-34 Product Support web page at

http://www.versalogic.com/private/wildcatsupport.asp.

VL-EPMp-34 Reference Manual 10

Physical Details

Dimensions and Mounting

The VL-EPMp-34 complies with all PCI-104 standards. Dimensions are given below to help with

pre-production planning and layout.

Figure 3.VL-EPMp-34 Dimensions and Mounting Holes (Top View)

(Not to scale. All dimensions in inches.)

3 3

0.125 DIA x4

Use 3mm or #4

standoffs

0.471

0.000

-0.200

3.575

3.375

3.041

0.150

3.050

0.195

3.175

-0.500

–0.200

0.000

3.150

3.350

3.713

Physical Details

VL-EPMp-34 Reference Manual 11

Figure 4. VL-EPMp-34 Height Dimensions (Side View)

(Not to scale. All dimensions in inches.)

CBR-3406 DIMENSIONS

Figure 5. VL-CBR-3406 Dimensions and Mounting Holes (Top and Side Views)

(Not to scale. All dimensions in inches.)

1.95

1.57

5.50

5.10

0.06

1.17

1.38

0.06

0.44

1.78

0.67

1.28

Physical Details

VL-EPMp-34 Reference Manual 12

HARDWARE ASSEMBLY

The VL-EPMp-34 uses a pass-through PCI-104 connector so that expansion modules can be

added to the bottom of the stack. There is no PC/104 (ISA) connector.

The entire assembly can sit on a table top or be secured to a base plate. When bolting the unit

down, make sure to secure all four standoffs to the mounting surface to prevent circuit board

flexing. Standoffs are secured to the top circuit board using four pan head screws. See page 10

for dimensional details. The 5mm x 15.25mm M3 standoffs and screws are available as part

number VL-HDW-105.

An extractor tool is available (part number VL-HDW-201) to separate the PC/104 modules from

the stack. Use caution when using the extractor tool not to damage any board components.

STACK ARRANGEMENT EXAMPLE

Figure 6. Stack Arrangement Example

Physical Details

VL-EPMp-34 Reference Manual 13

External Connectors

VL-EPMP-34 CONNECTOR LOCATIONS – TOP

Figure 7. Connector Locations (Top View)

JN2

I/O

JN3

Digital Audio

JN4

SPX

JN5

SATA

JN6

Ethernet

JN9

LVDS

JN10

Fan

VN1

JN8

Power Input

JN7

MiniBlade

JN11

SVGA

CPU – Heatsink – Fan

Physical Details

VL-EPMp-34 Reference Manual 14

VL-EPMP-34 CONNECTOR LOCATIONS – BOTTOM

Figure 8. Connector Locations (Bottom View)

JN1

PC-104-Plus (PCI)

pass-through male

JN13

SO-DIMM

JN14

Factory Use Only

Physical Details

VL-EPMp-34 Reference Manual 15

VL-EPMP-34 CONNECTOR FUNCTIONS AND INTERFACE CABLES

Table 1 provides information about the function, mating connectors, and transition cables for

VL-EPMp-34 connectors. Page numbers indicate where a detailed pinout or further information

is available.

Table 1: Connector Functions and Interface Cables

Connector

Function

Mating Connector

Transition

Cable

Cable Description

Pin 1 Location1

x coord. y coord.

Page

JN1

PC/104-Plus (PCI)

—

0.450

3.139

JN2

Serial Port, USB1-4,

LEDs, Reset,

Speaker, Battery

FCI 89947-334LF

VL-CBR-3406

34-pin latching I/O cable

and breakout board

0.862

2.932

JN3

Digital Audio

FCI 89361710LF

—

2.385

2.932

JN4

SPX

FCI 89361714LF

VL-CBR-1401 or

VL-CBR-1402

2mm 14-pin IDC, 2 or 4

SPX device cable

3.023

3.119

JN5

SATA0-1

Standard SATA

VL-CBR-0701

VL-CBR-0401

500mm 7-pin, straight-

to-straight SATA data

ATX to SATA power

adapter

3.477

2.960

JN6

Ethernet

RJ-45 crimp-on plug

—

0.492

2.487

JN7

MiniBlade

USB Mini-Blade

—

2.344

2.689

JN8

Main Power Input

Berg 69176-010 (housing)

+ Berg 47715-000 (pins)

VL-CBR-1008

Interface from standard

ATX power supply

3.515

2.287

JN9

LVDS

Molex 51146-2000

(housing), Molex 50641-

8041 (pins)

VL-CBR-2010,

VL-CBR-2011,

VL-CBR-2012

18-bit TFT FPD using

20-pin Hirose, or

18-bit TFT FPD using

20-pin JAE, or

24-bit TFT FPD using

20-pin Hirose

-0.195

2.185

JN10

Fan

Molex 22-01-3027 or

Molex 22-01-2025

Provided with

assembly

—

3.565

0.9700

—

JN11

Video Output

FCI 89361-712 or

FCI 89947-712

VL-CBR-1201

1’ 12-pin 2mm latching /

15-pin HD D-Sub VGA

-0.321

0.605

JN132

Memory

DDR3 SO-DIMM

—

0.473

1.974

JN14

Factory use only

—

1. The PCB Origin is the mounting hole to the lower left, as shown in Figure 7.

2. Connector JN12 not installed.

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VersaLogic Wildcat (VL-EPMp-34) Reference guide

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Model: Wildcat (VL-EPMp-34)

Category: Motherboards

Type: Reference guide

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