Portwell WADE-8172, User Manual

Page 1: ...WADE 8172 Copyright Portwell 2017 WADE 8172 User s Guide 1 Version 1 1 Industrial Mini ITX Board WADE 8172 ...

Page 2: ...WADE 8172 Copyright Portwell 2017 WADE 8172 User s Guide 2 Revision History R1 0 Preliminary R1 1 Update USB_2_4_5 USB_2_6_7 jumper setting ...

Page 3: ... 12 3 Block Diagram 13 4 Hardware Configuration 14 4 1 Jumpers and Connector 14 4 2 Jumpers Setting 15 5 Signal Descriptions 32 5 1 Watch Dog Signal 32 5 2 GPIO Signal 32 6 System Resources 34 6 1 Intel Apollo Lake SoC 34 6 2 Main Memory 34 6 3 Installing the Single Board Computer 34 6 3 1 Chipset Component Driver 35 6 3 2 Intel HD Graphics 50X 35 6 3 3 Realtek RTL8111G Gigabit Ethernet Controller...

Page 4: ...tion 37 7 2 BIOS Setup 37 7 2 1 Main 39 7 2 2 Advanced 41 7 2 3 H W Monitor 55 7 2 4 Security 58 7 2 5 Boot 60 7 2 6 Exit 63 8 Troubleshooting 65 8 1 Hardware Quick Installation 65 8 2 BIOS Setting 67 8 3 FAQ 68 9 Portwell Software Service 76 10 Industry Specifications 77 ...

Page 5: ...n contained herein and hereby expressly disclaims any implied warranties of merchantability or fitness for any particular purpose with regard to any of the foregoing Portwell assumes no liability for any damages incurred directly or indirectly from any technical or typographical errors or omissions contained herein or for discrepancies between the product and the user s guide In no event shall Por...

Page 6: ...efect in materials or workmanship or due to non conformance to the agreed upon specifications will be repaired or exchanged at Portwell s option and expense Certification Portwell is certified to DIN EN ISO 9001 2000 standard Technical Support Portwell technicians and engineers are committed to providing the best possible technical support for our customers so that our products can be easily used ...

Page 7: ...features two DDR3L 1333 1600 1866 MHz SO DIMM socket equipped with up to 16GB DDR3L memory Atom solution is still popular in the market of Kiosk Panel PC Digital Security and Digital Signage which can fulfill most of these applications therefore with high performance and high end specifications Apollo Lake SoC is our first generation Atom chip architecture on Mini ITX line ...

Page 8: ... to resolution 1920 x 1200 HDMI Supports HDMI up to resolution 4096x 2160 24Hz Expansion Interface One Mini PCIe socket Two M 2 socket Key M Key E SATA Interface One SATA ports SATA 6Gb s Input Output Serial Ports 3 x RS 232 on board 3 x RS 232 422 485 on Rear I O Support Keyboard and PS 2 mouse connector Rear I O USB Port 4 x USB 3 0 4 x USB 2 0 Audio Interface Connector for Mic In and Line Out E...

Page 9: ...rage temperature 20 80 C Humidity 5 90 non condensing Board size 170mm x 170 mm 2 1 Supported Operating Systems The WADE 8172 supports the following operating systems Windows 10 64 bit IoT Core 32 64bit Wind River 8 0 Linux Distribution 64 bit Yocto Tool based Embedded Linux Distribution 64 bit Android 6 0 64bit VxWorks 7 0 RTOS 64 bit ...

Page 10: ...WADE 8172 Copyright Portwell 2017 WADE 8172 User s Guide 10 2 2 Mechanical Dimensions ...

Page 11: ...PCI E Gigabit Ethernet LAN Driver Realtek driver version 9 1 404 2015 LAN Card Realtek 8111 PCI E Gigabit Ethernet LAN Driver Realtek driver version 9 1 404 2015 Audio Card Realtek ALC887 Audio Driver Realtek High Definition Audio 10 0 14393 0 6 0 1 7989 6 0 1 7989 6 0 1 7989 6 0 1 7989 Chip Driver Intel Chipset Device Software Version 10 1 1 Version 10 1 1 USB3 0 Driver Intel USB 3 0 eXtensible H...

Page 12: ...5mins after OS boot 23 23 7 Full Loading Run Prime95 small FFT s item 27 5 28 6 S1 Monitor Auto Off N A N A S3 Sleep mode 5Watt 1 84 1 92 S4 Hibernate 1 81 1 87 S5 Shut down 1 53 1 58 Deep S5 Shut down 1 16 1 18 USB2 0 Loading Test 5 05 V 560 mA USB3 0 Loading Test 5 01 V 1090 mA 2 4 Environmental Specifications Storage Temperature 20 80 C Operation Temperature 0 60 C Storage Humidity 5 90 Operati...

Page 13: ...WADE 8172 Copyright Portwell 2017 WADE 8172 User s Guide 13 3 Block Diagram ...

Page 14: ... 4 Hardware Configuration 4 1Jumpers and Connector This chapter indicates jumpers headers and connectors locations Users may find useful information related to hardware settings in this chapter If you install one memory module only please install it on DDR3_A1 ...

Page 15: ...the Jumper allocations Jumper Table The jumper settings are schematically depicted in this manual as follows Jumper Function List 1 EDP_LVDS Jumpers 2 Clear CMOS Jumper 3 4 pin CPU Fan Connector 4 ATX Power Connector Input 12V 24V 5 LVDS Panel Connector 6 BLT PWM1 7 BL1 BL2 8 Backlight Volume Control BLT_Vol1 9 Backlight Power Connector BLT_PWR1 10 Panel Power Select LCD_VCC 11 Digital Input Outpu...

Page 16: ... GPIO Header LPT_GPIO1 21 Chassis Intrusion Headers 22 ATX AT Mode Select PWR JP1 23 SATA Power Output Connector 24 SATA3 Connector SATA3_1 25 LPC Header 26 3W Audio AMP Output Wafer 27 SPDIF Header 28 Front Panel Audio Header 29 Audio Output 30 Top RJ45 LAN port LAN2 Bottom USB 3 0 Ports USB3_2_3 31 USB2 Power Setting Jumper USB2_PWR_H1 USB2_PWR_H2 32 USB2 0 Connector USB2_4_5 USB2_6_7 33 USB6_S_...

Page 17: ...er USB3_PWR_H1 USB3_PWR_H2 37 VGA Header 38 TOP COM Port 3 RS232 422 485 Bottom VGA D Sub Port 39 COM port PWR Setting Jumpers 40 Top COM Port 1 RS232 422 485 Bottom COM Port 2 RS232 422 485 41 PS 2 Mouse Keyboard Port 42 HDMI Port 1 EDP_LVDS Jumpers EDP_LVDS_J1 1 2 eDP 2 3 LVDS EDP_LVDS_J2 1 2 eDP 2 3 LVDS ...

Page 18: ...WADE 8172 Copyright Portwell 2017 WADE 8172 User s Guide 18 2 Clear CMOS Jumper Open Normal Short Clear CMOS 3 4 Pin CPU FAN Connector 12V 4 ATX Power Connector Input 12V 24V 1 2 GND 3 4 DC Input ...

Page 19: ...WADE 8172 Copyright Portwell 2017 WADE 8172 User s Guide 19 5 LVDS Panel Connector 6 BLT_PWM1 1 2 3V Level 2 3 5V Level ...

Page 20: ...WADE 8172 Copyright Portwell 2017 WADE 8172 User s Guide 20 7 BL1 BL2 8 Backlight Volume Control BLT_VOL1 9 Backlight Power Connector BLT_PWR1 ...

Page 21: ...well 2017 WADE 8172 User s Guide 21 10 Panel Power Select LCD_VCC PNL_PWR1 1 2 LVDD 3V 2 3 LVDD 5V 4 5 LVDD 12V 11 Digital Input Output Power Select JGPIO_PWR1 1 2 12V 2 3 5V 3 4 5V 4 5 GND 12 20 pin ATX Power Input Connector ...

Page 22: ...ght Portwell 2017 WADE 8172 User s Guide 22 13 System Panel Header 14 COM Port PWR Setting Jumpers PWR_COM4 For COM Port4 PWR_COM5 For COM Port5 PWR_COM6 For COM Port6 1 2 5V 2 3 12V 15 4 Pin Chassis FAN Connector 12V ...

Page 23: ...WADE 8172 Copyright Portwell 2017 WADE 8172 User s Guide 23 16 2 Pin Buzzer Header 17 COM4 5 6 Headers RS232 18 Digital Input Output Default Value Setting JGPIO_SET1 1 2 Pull High 2 3 Pull Low ...

Page 24: ...t Power Select LCD_BLT_VCC BKT_PWR1 1 2 LCD_BLT_VCC 5V 2 3 LCD_BLT_VCC 12V 4 5 LCD_BLT_VCC DC_IN 20 Printer Port GPIO Header LPT_GPIO1 Printer Port GPIO If you want to use the printer port function please short pin4 and pin5 on Digital Input Output Power Select JGPIO_PWR1 ...

Page 25: ...ell 2017 WADE 8172 User s Guide 25 21 Chassis Intrusion Headers CI1 Close Active Case Open Open Normal Cl2 Close Normal Open Active Case Open 22 ATX AT Mode Select PWR_JP1 1 2 AT Mode 2 3 ATX Mode 23 SATA Power Output Connector ...

Page 26: ...WADE 8172 Copyright Portwell 2017 WADE 8172 User s Guide 26 24 SATA3 Connector SATA3_1 25 LPC Header 26 3W Audio AMP Output Wafer 27 SPDIF Header ...

Page 27: ...ll 2017 WADE 8172 User s Guide 27 28 Front Panel Audio Header 29 Audio Output Green Line out Pink Mic in 30 Top RJ45 LAN Port LAN2 Bottom USB3 0 Ports USB3_2_3 31 USB Power Setting Jumpers USB2_PWR_H1 USB2_PWR_H2 1 2 5V 2 3 5VSB ...

Page 28: ... Portwell 2017 WADE 8172 User s Guide 28 32 USB2 0 Connectors USB2_4_5 USB2_6_7 33 USB Port5 _S_MPCIE slot Open USB2 0 Connector Short Mini PCIe Function USB Port7 _S_M 2_2 slot Open USB2 0 Connector Short M 2_2 Function ...

Page 29: ...ortwell 2017 WADE 8172 User s Guide 29 34 Top RJ45 LAN Port LAN1 Bottom USB3 0 Ports USB3_0_1 35 Clear CMOS Header 1 2 Normal 2 3 Clear CMOS 36 USB Power Setting Jumpers USB3_PWR_H1 USB3_PWR_H2 1 2 5V 2 3 5VSB 37 VGA Header ...

Page 30: ...reen Super IO Configuration You may refer to our manual for details 39 COM Port PWR Setting Jumpers PWR_COM1 For COM Port1 PWR_COM2 For COM Port2 PWR_COM3 For COM Port3 1 2 5V 2 3 12V 40 Top COM Port 1 RS232 422 485 Bottom COM Port 2 RS232 422 485 This motherboard supports RS232 422 485 on COM1 3 ports Please refer to below table for the definition In addition COM1 3 ports RS 232 422 485 can be ad...

Page 31: ...WADE 8172 Copyright Portwell 2017 WADE 8172 User s Guide 31 41 Top Green PS 2 Mouse Port Bottom Purple PS 2 Keyboard Port 42 HDMI Port ...

Page 32: ...Dog program sample WatchDog program sample O 2E 87 O 2E 87 O 2E 07 O 2F 08 Select Logical Device 8 O 2E 30 O 2F BIT0 0 WDT is inactive 1 WDT is active O 2E F1 O 2F XX XX Watchdog Timer Counter Register 0x00 0xFF O 2E AA 5 2GPIO Signal GPI program sample O 2E 87 O 2E 87 O 2E 07 O 2F 07 Select Logical Device 7 ...

Page 33: ...E ED GPIO status 1 high 0 low I 2F yy yy GPIO status 1 high 0 low O 2E AA GPO program sample O 2E 87 O 2E 87 O 2E 07 O 2F 07 Select Logical Device 7 O 2E 30 O 2F 10 Active GPIO4 BIT4 O 2E F0 GP4x pins are programmed as output pins O 2F 00 GP4x pins are programmed as output pins O 2E F1 GPIO status 1 high 0 low O 2F yy xx GPIO status 1 high 0 low O 2E AA ...

Page 34: ...s DDR3L non ECC memory The maximum memory can be up to 16GB Memory clock and related settings can be detected by BIOS via SPD interface Watch out the contact and lock integrity of memory module with socket it will impact on the system reliability Follow normal procedures to install memory module into memory socket Before locking make sure that all modules have been fully inserted into the card slo...

Page 35: ...ase install its INF before any of other Drivers are installed You can find very easily this chipset component driver in WADE 8172 CD title 6 3 2 Intel HD Graphics 50X WADE 8172 has integrated Intel HD Graphics 50X E3950 N4200_ Intel HD Graphics 505 E3940 E3930 N3350_ Intel HD Graphics 500 Processor Graphics indicates graphics processing circuitry integrated into the processor providing the graphic...

Page 36: ...6 6 3 3 Realtek RTL8111G Gigabit Ethernet Controller RTL8111G Gigabit Ethernet controller and 2x RJ45 connectors on rear I O Drivers Support Please find Realtek RTL8111G LAN driver in Ethernet directory of WADE 8172 CD DVD title The driver supports Windows 10 ...

Page 37: ...lt BIOS settings 7 2 BIOS Setup Power on the computer and the system will start POST Power on Self Test process When the message below appears on the screen press Delete or F2 key will enter BIOS setup screen Press Delete or F2 to enter SETUP If the message disappears before responding and still wish to enter Setup please restart the system by turning it OFF and On or pressing the RESET button It ...

Page 38: ... Run General Help or Resume The BIOS setup program provides a General Help screen The menu can be easily called up from any menu by pressing F1 The Help screen lists all the possible keys to use and the selections for the highlighted item Press Esc to exit the Help Screen ...

Page 39: ...WADE 8172 Copyright Portwell 2017 WADE 8172 User s Guide 39 7 2 1 Main Use this menu for basic system configurations such as time date etc ...

Page 40: ...ell 2017 WADE 8172 User s Guide 40 Feature Description Options System Date The date format is Day Month Date Year Use or to configure system Date System Time The time format is Hour Minute Second Use or to configure system Time ...

Page 41: ...WADE 8172 Copyright Portwell 2017 WADE 8172 User s Guide 41 7 2 2 Advanced Use this menu to set up the items of special enhanced features ...

Page 42: ...WADE 8172 Copyright Portwell 2017 WADE 8172 User s Guide 42 CPU Configuration CPU Configuration Parameters ...

Page 43: ...port for power saving It is recommended to keep C1 C6 C7 C8 C9 and C10 all enabled for better power saving C10 C9 C8 C7 C6 C1 Disabled Enhanced Halt State C1E Enable Enhanced Halt State C1E for lower power consumption Enabled Disabled Intel Virtualization Technology Intel Virtualization Technology allows a platform to run multiple operating systems and applications in independent partitions so tha...

Page 44: ...WADE 8172 Copyright Portwell 2017 WADE 8172 User s Guide 44 Chipset Configuration Configuration Chipset feature ...

Page 45: ... by the Internal Graphics Device Auto 64M 128M 256M 512M Active LFP Select eDP or LVDS to Display eDP LVDS Panel Type Selection Select LVDS 1440x900 24 bit 2 ch LED 1366x768 18 bit 1 ch LED 800x600 18 bit 1 ch CCFL 1024x768 24 bit 1 ch CCFL 1280x1024 24 bit 2 ch CCFL 1366x768 24 bit 1 ch CCFL 1440x900 24 bit 2 ch CCFL 1024x600 18 bit 1 ch LED 1280x1024 24 bit 2 ch LED 1024x768 24 bit 1 ch LED 1600...

Page 46: ...io Auto enable disable onboard HD audio Set to Auto to enable onboard HD audio and automatically disable it when a sound card is installed Auto Enabled Disabled Front Panel Select Front Panel Type HD AC 97 Onboard Lan1 Enable or disable the onboard Lan1 network interface controller Enabled Disabled Onboard Lan2 Enable or disable the onboard Lan2 network interface controller Enabled Disabled PCIE1 ...

Page 47: ...WADE 8172 Copyright Portwell 2017 WADE 8172 User s Guide 47 Storage Configuration SATA Settings ...

Page 48: ...M A R T S M A R T stands for Self Monitoring Analysis and Reporting Technology It is a monitoring system for computer hard disk drives to detect and report on various indicators of reliability Enabled Disabled SATA3_1 Not Detected Feature Description Options External SATA Enable SATA safe removal notifications Please note that the SATA device will be downgraded to SATA2 Disabled Enabled Hot Plug E...

Page 49: ...WADE 8172 Copyright Portwell 2017 WADE 8172 User s Guide 49 Super IO Configuration COM Port Configuration ...

Page 50: ...IO 2E0h IRQ 10 Enabled Disabled COM 6 Enable or Disable COM6 IO 2F0h IRQ 10 Enabled Disabled Serial Port IRQ Mode Set COM Port IRQ mode Auto Linux DOS Windows Parallel Port Select Parallel Port LPT LPTE or GPIO Enabled LPT Disabled GPIO Enabled Disabled Device Mode Change the Printer Port mode ECP and EPP 1 9 Mode Normal Bi Directional ECP and EPP 1 7 Mode Change Settings Select an optimal setting...

Page 51: ...WADE 8172 Copyright Portwell 2017 WADE 8172 User s Guide 51 ACPI Configuration ...

Page 52: ...yboard Disabled Any Key PCIE Devices Power On Allow the system to be waked up by a PCIE device and enable wake on LAN Disabled Enabled RTC Alarm Power On Enabled Allow the system to be waked up by the real time clock alarm Set it to By OS to let It be handled by your operating system By OS Disabled Enabled RTC Alarm Date Set Date of RTC power on feature Every Day 1 31 RTC Alarm Hour Set Hour of RT...

Page 53: ...WADE 8172 Copyright Portwell 2017 WADE 8172 User s Guide 53 USB Configuration USB Configuration Parameters ...

Page 54: ...option disables legacy support if no USB devices are connected DISABLE option will keep USB devices available only for EFI applications Enabled Disabled UEFI Setup Only Instant Flash Save UEFI files in your USB storage device and run Instant Flash to update your UEFI Please note that your USB storage device must be FAT32 16 12 file system ...

Page 55: ...WADE 8172 Copyright Portwell 2017 WADE 8172 User s Guide 55 7 2 3 H W Monitor Monitor hardware status ...

Page 56: ... 50 122 45 113 46 114 47 116 48 118 49 120 51 123 52 125 53 127 54 129 55 131 56 132 57 134 58 136 59 138 60 140 61 141 62 143 63 145 64 147 65 149 Target Fan Speed The higher the level the higher the fan speed Level 9 Level 1 Level 2 Level 3 Level 4 Level 5 Level 6 Level 7 Level 8 CHA FAN1 Setting Automatic mode Quiet Fan Function Control Full on Automatic mode Target CPU Temperature Target CPU T...

Page 57: ...125 53 127 54 129 55 131 56 132 57 134 58 136 59 138 60 140 61 141 62 143 63 145 64 147 65 149 Target Fan Speed The higher the level the higher the fan speed Level 9 Level 1 Level 2 Level 3 Level 4 Level 5 Level 6 Level 7 Level 8 Case Open Feature Enable or disable the feature of Case Open Disabled Enabled ...

Page 58: ...E 8172 Copyright Portwell 2017 WADE 8172 User s Guide 58 7 2 4 Security This section lets you set security passwords to control access to the system at boot time and or when entering the BIOS setup program ...

Page 59: ... remove the password Create New Password User Password Set or change the password for the user account Users are unable to change the settings in the UEFI Setup Utility Leave it blank and press enter to remove the password Create New Password Secure Boot Enable to support Windows 8 Secure Boot Disabled Enabled Intel R Platform Trust Technology Enabled Disabled Intel PTT function Enabled Enable Int...

Page 60: ...WADE 8172 Copyright Portwell 2017 WADE 8172 User s Guide 60 7 2 5 Boot Use this menu to specify the priority of boot devices ...

Page 61: ...ed on or off when the system boots up Please note that a buzzer is needed Disabled Enabled Full Screen Logo Enabled Enable to display the boot logo or disable to show normal POST messages Disabled Enabled AddOn ROM Display Enable to display the boot logo or display to show normal POST messages Enabled Enabled CSM Compatibility Support Module Feature Description Options CSM Enabled Enable to launch...

Page 62: ...cy only to run those that support legacy option ROM only Select Do not launch to not execute both legacy and UEFI option ROM Legacy only Do not launch UEFI only Launch Video OpROM Policy Select UEFI only to run those that support UEFI option ROM only Select Legacy only to run those that support legacy option ROM only Select Do not launch to not execute both legacy and UEFI option ROM Legacy only D...

Page 63: ...WADE 8172 Copyright Portwell 2017 WADE 8172 User s Guide 63 7 2 6 Exit ...

Page 64: ...m setup without saving any changes Esc key can be used for this operation Disacrd Changes Discard Changes done so far to any of the setup options F7 key can be used for this operation Load UEFI Defaults Load UEFI Default values for all the setup questions F9 key can be used for this operation Launch EFI Shell from filesystem device Attempts to Launch EFI Shell application Shell efi from one of the...

Page 65: ...re installation has been addressed in Chapter 2 this chapter will focus on system integration issues in terms of BIOS setting and OS diagnostics 8 1 Hardware Quick Installation ATX Power Setting There are two methods to connect the power of WADE 8172 which are Connector 12 20 Pin ATX input or Connector 4 4 Pin 12V 24V It s able to be choisen either one to let WADE 8172 power on ...

Page 66: ...opyright Portwell 2017 WADE 8172 User s Guide 66 ATX Power emulation AT mode You can adjust the connector 23 3 pin jumper to 1 2 short to emulation the AT mode Serial ATA Hard Disk Setting for SATA Speed Selection ...

Page 67: ...that you have a successful start with WADE 8172 it is recommended when going with the boot up sequence to hit Del key And enter the BIOS setup menu to tune up a stable BIOS configuration so that you can wake up your system far well Loading the default optimal setting When prompted with the main setup menu please scroll down to Load UEFI Defaults press Enter and select Yes to load default optimal B...

Page 68: ...port Question I forgot my password of system BIOS what am I supposed to do Answer You can switch off your power supply then find the connector 2 on the WADE 8172 to set Pin 1 2 to short and wait 10 seconds to clean your password then set it back to open to switch on your power supply ...

Page 69: ...count in advance is a must The E Mail box should be an existing Company email address that you check regularly http www portwell com tw member newmember php 2 Type in your User name and password and log in the download center 3 Select Search download and type the keyword WADE 8172 4 Find the BIOS page and download the ROM file and flash utility 5 Unzip file to bootable USB flash drive which can bo...

Page 70: ...pyright Portwell 2017 WADE 8172 User s Guide 70 6 When you see the FPT Operation Passed message which means the BIOS update processes finished Please cut the AC power off and wait for 10 seconds before powering on ...

Page 71: ...rtwell 2017 WADE 8172 User s Guide 71 7 Press DEL key into the BIOS setup menu and switch to Exit page then select Load UEFI Defaults Option and press Yes then select Save Changes and Exit to finish all BIOS update processes ...

Page 72: ...s a must The E Mail box should be an existing Company email address that you check regularly http www portwell com tw member newmember php 2 Type in your User name and password and log in the download center 3 Select Search download and type the keyword WADE 8172 4 Find the BIOS page and download the ROM file and unzip file to USB flash drive FAT 32 16 format 5 Boot into BIOS and switch to Advance...

Page 73: ...WADE 8172 Copyright Portwell 2017 WADE 8172 User s Guide 73 6 Select xxxx 12A file then start update BIOS ...

Page 74: ...opyright Portwell 2017 WADE 8172 User s Guide 74 7 When you see the Programming success message which means the BIOS update processes finished Please cut the AC power off and wait for 10 seconds before powering on ...

Page 75: ...e processes Note Please visit our Download Center to get the Catalog User Manual BIOS and driver files http www portwell com tw support download_center php If you have other additional technical information or request which is not covered in this manual please fill in the technical request form as below hyperlink http www portwell com tw support problem_report php We will do our best to provide a ...

Page 76: ... is a brand new on line utility which innovated by Portwell PBT now is available for Portwell s premiere customers who are able to add customized BIOS logo and change BIOS default settings on American Megatrends AMI BIOS Please contact Portwell for more information Portwell EC Auto Test Tool PECAT The Portwell EC Auto Test Tool PECAT is a brand new utility which innovated by Portwell PECAT now is ...

Page 77: ...n Count Interface Specification Revision 1 0 LPC http www intel com design chipsets industry lpc htm Universal Serial Bus USB Specification Revision 2 0 http www usb org home PCI Specification Revision 2 3 https www pcisig com specifications Serial ATA Specification Revision 3 0 http www serialata org PCI Express Base Specification Revision 2 0 https www pcisig com specifications ...