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One Stop Systems

ExpressBox 2200 | 4 Additional Technical Information

50

4.9 Internal Front Fan Specifications

OSS Part Number

26-00038-00

Description

FAN AXIAL 80X25.4MM 12VDC WIRE

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Size / Dimension

Square - 80mm L x 80mm H x 25.4mm W

Air Flow

70.2 CFM (1.99m³/min)

Static Pressure

0.551 in H2O (137.2 Pa)

Bearing Type

Ball

Fan Type

Tubeaxial

Features

PWM Control; Speed Sensor (Tach)

Noise

50.5 dB(A)

Power (Watts)

6.60W

RPM

5600 RPM

Termination

4 Wire Leads

Weight

0.194 lb (88g)

Operating Temperature

14 ~ 140°F (-10 ~ 60°C)

Current Rating

0.550A

Voltage Range

10.8 ~ 12.6VDC

Life Expectancy

70000 hrs @ 40°C

Material - Frame

Plastic

Material - Blade

Plastic

The actual wire leads on the fan are not terminated. The fan requires wiring termination prior to installing in the expansion unit. Only 3 of the
4 wires are used. Wiring termination can be accomplished by a technician using the appropriate tools and materials. Improper wire lead
termination can lead to serious problem, it will render the fan inoperable.

When purchasing a replacement fan we recommend buying a certified OSS fan. The part number for the fan with wire leads terminated and
with proper connectors is 01-05941-00. The fan itself (w/o the wire leads terminated) is 26-00038-00. Use part# 01-05941-00 when
purchasing the replacement fan.

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Summary of Contents for ExpressBox 2200

Page 1: ...ExpressBox 2200 PCIe to PCIe Expansion User Manual SKU EB2200 www onestopsystems com ...

Page 2: ... 4 Install Expansion Interface card 16 2 5 Install Host Interface card 17 2 5 1 Computer PCIe slots to use 18 2 6 Install PCIe Cards 19 2 6 1 OSS PCIe slot 20 2 6 2 Types of PCIe cards to use 22 2 6 3 Auxiliary Power Connectors 24 2 6 4 High Power PCIe card installation 25 2 6 5 How to Use OSS Auxiliary Power cable 26 2 7 Connect iPass Cable 28 2 7 1 How to Disconnect iPass Cable 29 2 8 Attach Pow...

Page 3: ...48 4 7 1 What is a Fan control 48 4 8 iPass x8 Cable 49 4 9 Internal Front Fan Specifications 50 4 10 Power Supply Fanless 51 4 10 1 Features 51 4 10 2 PSU Specifications 51 4 10 3 Power Distribution 52 4 10 4 Wire Configuration 52 5 How to Remove Install Parts 53 5 1 How to replace the Expansion card 53 5 2 How to remove the Fan 53 5 3 How to remove the Power Supply 54 5 4 How to remove the Expan...

Page 4: ...ons 69 8 1 Fan Out 70 8 2 Daisy Chaining 71 9 Appendix B PCI Express General Information 72 9 1 What is PCIe PCIE 72 9 2 How PCI Express Works 72 9 3 What is Lane 72 9 4 PCI Express Links and Lanes 73 9 5 Form Factor 74 9 5 1 PCI Express Sample Connectors 74 9 6 Bandwidth 75 9 7 Operation Mode 75 9 8 Power 77 10 Appendix C Compliance 78 10 1 FCC 78 10 2 CE 78 ...

Page 5: ...Explains how to verify a successful installation Chapter 4 Provides hardware information on all components of the expansion unit Chapter 5 Information on how to remove and install parts such as fan power supply board and etc Chapter 6 Information on Troubleshooting and Frequently Asked Questions Chapter 7 Explains where to get technical support and information about online support resources Append...

Page 6: ... tip to help you CAUTION Used to indicate and prevent the following procedure or step from causing damage to the equipment WARNING Used to indicate and prevent the following step from causing injury DANGER or STOP Used to indicate and prevent the following step from causing serious injury or significant data loss Disclaimer We have attempted to identify most situations that may pose a danger warni...

Page 7: ...mputer 1 Before taking covers off a computer perform the following steps 2 Turn off the computer and any peripheral devices 3 Disconnect the computer and peripheral power cords from their AC outlets or inlets in order to prevent electric shock or system board damage In addition take note of these safety guidelines when appropriate To help avoid possible damage to systems boards wait five seconds a...

Page 8: ...res which can include wrist straps and smocks when servicing equipment You can also take the following steps to prevent damage from electrostatic discharge ESD When unpacking a static sensitive component from its shipping carton do not remove the component s anti static packaging material until you are ready to install the component in a computer Just before unwrapping the anti static packaging be...

Page 9: ...roduct Name Description ExpressBox 2200 3 Slot PCIe Expansion Only 1 1 1 Features High speed x8 PCI Express connection Low profile bracket provides for easy installation in low profile computers Easily visible LEDs indicate correct installation and PCIe link width Low power consumption less than 4 Watts LEDs show status of connection for quick debug reset indicator clock indicator link width indic...

Page 10: ...tors PCIe Link width reset clock Interconnect Bandwidth 8GB sec or 64Gb s PCIe x8 Gen3 Physical Characteristics Length 139 7mm 5 5 inches Width 12 7mm 0 5 inches Height 69 9mm 2 75 inches Cable x8 iPass Cable 1 meter or 3 meter Enclosure 2U Aluminum Desktop Black 14 25 Wide x 3 48 High x 17 Deep 363mm x 88 4mm x 432mm 8 5 lbs or 3 6Kg Tool less cover removal White power on indicator front panel li...

Page 11: ...ed for installation Read this manual 1 4 Part List ITEM DESCRIPTION QTY 1 Host Interface card 1 2 iPass Cable 1 3 Power Cord 1 4 QSG Quick Start Guide 1 5 Low Profile Bracket 1 6 Rack mount Kit Optional 1 set 1 4 1 ExpressBox 2200 3 Slot PCIe Expansion Gen3 This model cannot be connected to laptop It uses an iPass cable that plugs into a Host Interface card which is installed in a PCIe slot of a m...

Page 12: ...tch not enabled 2 Interface card a Expansion and Host mode DIP switches b Speed Toggle switches c One Cable port 3 Power Supply a Power cord socket b On Off Switch c PCIe Auxiliary connectors 4 Replaceable Fan a 70 CFM b Locking Thumb screw c Air Flow from outside going inside 5 Storage Bay a Configurable 5 25 expansion bays Front panel You will find the following 1 Front Panel Status LED 2 Front ...

Page 13: ...One Stop Systems ExpressBox 2200 1 Introduction 13 ...

Page 14: ...ing If you need to set a circuit card down be sure to place it inside or on top of an anti static surface For more information see Protecting Against Electrostatic Discharge in the Preface WARNING High voltages are present inside the expansion chassis when the unit s power cord is plugged into an electrical outlet Disconnect the power cord from the AC outlet before removing the enclosure cover Tur...

Page 15: ...er Cord 7 Connect to Electrical Outlet 8 Turn on EB2200 expansion unit not applicable 9 Power on Computer 10 Hardware Check 11 Software Installation OSS requires no driver software 12 Verify Installation via Operating System NOTE It is highly recommended to install 3rd party PCI E cards High Power PCIe cards after you have verified and tested that the OSS expansion chassis is functional and free o...

Page 16: ... is already installed If you need to install the Expansion interface card install card in slot 3 Before installing the expansion card make sure the Dipswitch SW1 is set to ON position ON EXP and Dipswitch SW2 is set to OFF position x8 setting see pictures below The expansion system will NOT function if SW1 is set to OFF HOST SW1 and SW2 ...

Page 17: ...ocedures when completing this action WARNING YOU MUST ONLY INSTALL THE PCIe HOST CARD INTO A PCI EXPRESS SLOT Only use an Interface card WITH bracket This will ensure that your PCIe host card can only be inserted into a PCIe slot Although PCI Express cards without brackets may fit into conventional PCI slots you run the risk of damaging the PCI Express host card if you insert it into a PCI slot On...

Page 18: ...ntil it is firmly seated Then secure the card into the slot with a mounting screw To utilize the maximum bandwidth install the OSS Host interface card into a Gen3 x8 lane slot or Gen2 x8 lane slot 2 5 1 Computer PCIe slots to use You must plug in the OSS Host interface card to the following slots 1 X16 slot x16 mode 2 X16 slot x8 mode 3 X8 slot x8 mode ...

Page 19: ...ere are no configuration issues you can proceed with the installation of the remaining cards Remove slot covers and install PCIe cards Make sure that all cards are fully seated in their PCIe card slots When correctly seated there will be a firm resistance when you pull up gently on the card To keep the cards in place secure them in the enclosure with their retaining screws After securing the cards...

Page 20: ...motherboard You can physically plug a x8 card into a x16 slot The electrical connectivity determines the number of lanes actually wired up Less lanes means less potential data transfer speed All 3 slots are compatible with x1 x2 x8 and x16 cards Slot 0 accepts all types of PCIe cards x1 x2 x4 x8 or x16 mechanical Slot 1 accepts all types of PCIe cards x1 x2 x4 x8 or x16 mechanical Slot 2 accepts a...

Page 21: ...n 21 The PCIe slots on the EB2200 expansion chassis are predefined lanes are not shared amongst PCIe slots and each slot runs at x8 mode The OSS Host interface card is also x8 The diagram below represents the speed of PCIe slots that the EB2200 can support ...

Page 22: ...One Stop Systems ExpressBox 2200 2 Hardware Installation 22 2 6 2 Types of PCIe cards to use The illustrations below will give you an idea on what PCIe cards you can plug into your EB2200 chassis ...

Page 23: ...One Stop Systems ExpressBox 2200 2 Hardware Installation 23 If you plug in a x16 PCIe card in the OSS EB2200 unit the card will run at x8 because the OSS PCIe slot is electrically wired as x8 lane ...

Page 24: ...res extra power before installation The ExpressBox 2200 power supply provides the following Auxiliary power connectors adapters see pictures below There are five 4 pin Molex AUX power connectors that can be used for providing extra power to cards Two 6 2 pin PCIe connectors for GPUs Six SATA power connectors One 8 pin CPU PCIe connector One 6 inch 5 25 Male to Female power adapter ...

Page 25: ...r your PCIe cards Aside from the power being supplied by the PCIe slot which is 75 watts there is not enough to meet the power requirement for a high end GPU with power consumption of over 125 Watts A direct connection to the power supply is needed to obtain additional power This can be done by using the five 4 pin Molex Auxiliary power connector from the expansion unit Top of the line graphics pr...

Page 26: ...nnect the PCIe GPU supplied auxiliary power adapter cable to the OSS auxiliary power cable supply In this example we are using a singlewide GPU that has six pin power connector which draws 150 WATTS of power Connect the auxiliary power adapter cable supplied with PCIe card i e GPU to the OSS auxiliary power cable Attach the six pin connector to GPU ...

Page 27: ...One Stop Systems ExpressBox 2200 2 Hardware Installation 27 The next example using a double wide GPU that has two eight pin power connectors which draws 375 Watts of power ...

Page 28: ...s For the proper way of connecting the iPass cable to Interface card see pictures below Connect the iPass cable to Expansion port on the back of the expansion unit Try not to push the cable with brute force as this can damage the internal connector of the interface card Connect the other end of the cable to Host computer via Host Interface card ...

Page 29: ...Pass cable can break the connector inside the Interface card 2 8 Attach Power Cord 1 Plug in power cord to expansion chassis Make sure the power supply switch is turned OFF 2 After connecting the power cord turn power supply switch to ON position NOTE If possible plug the power cord from the expansion chassis and your host computer into a shared power strip preferably one that has surge and noise ...

Page 30: ...nsion unit This product is provided with a power supply that automatically adjusts to input voltages between 100 to 240 Vac A U S and Canadian 125 V power supply cord is provided with this product If using this product outside of the U S or Canada please use locally available power supply cords 2 10 Turn ON Expansion Unit You do not need to press the front On Off switch to turn the expansion unit ...

Page 31: ...o check the LED Link up status Verify the following LEDs on the Expansion and Host interface cards Host Card and Expansion card with proper link established should show up with FIVE solid green LEDs 1 You should see the following LEDs are illuminated a Five green LEDs on the Expansion card b Four green LEDs on the backplane c Five green LEDs on the HOST card The normal LED indicator on the expansi...

Page 32: ...nit If it is not illuminated the host computer is not linked up or connected to the expansion chassis Host card LED indicator should display five solid green LEDs It signifies that is training to x8 If you are seeing four solid green LEDs illuminated and one amber solid this is OK It means that it is training to x4 it is not utilizing its full x8 bandwidth ...

Page 33: ...operating systems 3 2 1 Check OSS Device Windows 7 and 8 Open ACPI BIOS Open PCI Bus Click the sign several times until your reach a PCI Express Root Port or PCI Standard PCI to PCI Bridge with a PCI Standard PCI to PCI Bridge beneath it If the verification is successful you can install third Party cards as well as auxiliary peripherals such as hard drives into the chassis If however the installat...

Page 34: ...re recognized or detected it means that the OSS expansion chassis is working See information and picture below IMPORTANT OSS requires no driver for MacOS To verify a successful installation of OSS ExpressBox 2200 on Mac select About This Mac under the Apple Icon 1 Your first step will vary depending on which version of Mac OS X you are using Mac OS X 10 6 8 Snow Leopard or earlier Open Apple Syste...

Page 35: ...mation about the PCIe switch in our case it will list the Integrated Device Technology IDT information Ispci vvv Displays the most comprehensive information about the expansion system Typical output from lspci vvv is verbose but you can dig through the information to find very important information There are many registers and settings associated with PCI Express Switches Use the lspci grep IDT co...

Page 36: ...formation for each PCI Bridge you would need the slot number in the domain bus slot func format you can query for a particular device as shown below Based on the lspci vvv output above we will use 01 00 0 and 02 00 0 Open the terminal windows and type lspci s 01 00 0 vvv and lspci s 02 00 0 vvv ...

Page 37: ...ards and see if it is displaying the correct LED status A normal LED status should display a full x8 link and 5 solid green this signifies that your host computer is linked to your expansion chassis at full bandwidth If you are seeing three solid green LEDs and one amber LED shutdown the host computer and the expansion chassis reseat the host card expansion card and cable then reboot This should f...

Page 38: ... Party PCIe cards are recognized detected without any error yellow exclamation point NOTE If your PCIe cards are not being detected or recognized you need to check the LED indicators on both interface cards and see if it is displaying the correct LED status A normal LED status should display a full x8 link and 5 solid green this signifies that your host computer is linked to your expansion chassis...

Page 39: ... GPU cards installed in the OSS EB2200 expansion unit and all of them are recognized To view the detailed device information of a specific PCIe card device you would need the slot number in the domain bus slot func format you can query for a particular device as shown below For example looking at the lspci vtt output see picture above we will look up the Quadro FX 3800 Open the terminal windows an...

Page 40: ...epending on the link width will display a x8 a x4 a x2 or a x1 Dipswitch SW1 This allows you to set the type of mode to use There are two modes Off Host and ON Exp Dipswitch SW2 Allows you to set the Link width to either x8 or x4 Bracket Comes in two different sizes full and half height Cable port Port for attaching an iPass x8 cable X8 PCIe connector Connector of the interface card that plugs int...

Page 41: ...a single integrated circuit containing a processor core memory and programmable input output peripherals Program memory in the form of Ferroelectric RAM NOR flash or OTP ROM is also often included on chip as well as a typically small amount of RAM Voltage Regulator This is for 12v and Powers on Re timers Re drivers What is Redriver Improves signal integrity at the receiver through programmable inp...

Page 42: ...s that tell users the condition it is currently operating in There are LED indicators for the lanes that are being used for data transfer and whether the board is powered correctly A switch is also available to change the amount of lanes that would be operational for usage by the user 4 2 1 Dipswitch SW2 Allows you to set the link width of the card You can set it to x8 or x4 ...

Page 43: ...ng it in the expansion unit Host mode OFF HOST Expansion mode ON EXP 4 2 3 x8 and x4 LED indicators The OSS EB2200 is x8 The normal LED on the host interface card should display a x8 link With a normal and functional host interface card you should see five solid green LEDs When the loss of lock LEDs is illuminated this signifies that the host is training to x4 or it is not utilizing its full x8 ba...

Page 44: ...e LEDs and Dipswitches make debugging and troubleshooting easy Visible LEDs show the PCIe link width that each PCIe Interface card is operating Other LEDs for Loss of Clock Reset ON and Clock Good are useful visual indicators for troubleshooting and verifying the connections without expensive software diagnostic tools ...

Page 45: ...One Stop Systems ExpressBox 2200 4 Additional Technical Information 45 4 4 Interface Card Dimension ...

Page 46: ... or connected 5 Fan Control switch This feature is not available with this model Allows you to control the fan speed 6 Power Standby LEDs Displays the correct LEDs when power is good when the expansion unit is powered up correctly Standby LEDs Signifies that there is power going to the board but the device is switched off or not performing their primary function 7 Serial numbers Identification num...

Page 47: ...ndby mode this means that the expansion unit is awaiting to power up If you expansion unit fails to power after turning ON the host computer you may have a problem with your OSS cable expansion card or the host card You need to check your iPass cable Reset the cable you need to make sure the iPass cable is firmly seated into the cable port Check your OSS Host interface card Reseat the card move th...

Page 48: ... unit with the fan functioning at full speed MAX The expansion unit is using a 72 cfm with 5600 RPM fan However noise is a concern for many applications For noise sensitive applications we have provided this Thermistor setting THERM to help alleviate fan noise in situations By default the fan will run at maximum speed when the DIP Switch is to MAX that control fan speed When setting to Thermistor ...

Page 49: ...ss PCI Express Trademark Attribution PCI Express is a registered trademark of PCI SIG Physical Cable Length 3 0m Circuits Loaded 68 Gender Male Male Lock to Mating Part Yes Material Metal Zinc Alloy Net Weight 696 803 g Packaging Type Bag Pitch Mating Interface 0 80mm Single Ended No Waterproof Dustproof No Wire Insulation Diameter N A Wire Size AWG 28 Wire Cable Type Round Electrical Current Maxi...

Page 50: ...rent Rating 0 550A Voltage Range 10 8 12 6VDC Life Expectancy 70000 hrs 40 C Material Frame Plastic Material Blade Plastic The actual wire leads on the fan are not terminated The fan requires wiring termination prior to installing in the expansion unit Only 3 of the 4 wires are used Wiring termination can be accomplished by a technician using the appropriate tools and materials Improper wire lead ...

Page 51: ...olymer Aluminum Solid Capacitors Highly Reliable 105C Aluminum Electrolytic Capacitors Tight Voltage Regulation 2 Active Power Factor Correction 99 PF Typical High 12V Output Gold Plated High Current Terminals Dual Sided PCB Layout Ultra Ventilation Honeycomb Structure Multi GPU Technology Support All in One DC Cabling Design Easy Swap Connector Universal AC Input 4 10 2 PSU Specifications ...

Page 52: ...One Stop Systems ExpressBox 2200 4 Additional Technical Information 52 4 10 3 Power Distribution 4 10 4 Wire Configuration ...

Page 53: ...slot 3 This is the designated slot for the Expansion interface card Installing the Interface card into a non designated slot can cause the system to malfunction 5 2 How to remove the Fan 4 Disconnect the Fan power cable assembly from the board using long nosed pliers 5 Remove the four mounting screws from the front panel 6 Pull the front panel from the chassis 7 Remove the four screws from the fan...

Page 54: ...ng Pull the fan out 5 3 How to remove the Power Supply 1 Disconnect the main ATX power connector 2 Unplug the two PCIe power connectors 3 Remove the four screws from the back of the unit 4 Pull the power supply out from the chassis Disconnect the main ATX power connector Unplug the two PCIe power connectors ...

Page 55: ... the Expansion board 1 Disconnect the ATX power cable from the board 2 Unplug the PCIe power cable 3 Disconnect the ON OFF switch power cable assembly 4 Removed Expansion Interface card 5 Remove all screws on the expansion board 6 Slowly lift the expansion board and unplug the Fan power cable assembly Disconnect the ATX power cable from the board Unplug the PCIe power cable ...

Page 56: ... 2200 5 How to Remove Install Parts 56 Disconnect the ON OFF switch power cable assembly Remove Expansion Interface card Remove all screws on the expansion board Slowly lift the expansion board Unplug the Fan power cable assembly ...

Page 57: ...ar ears The following information will guide you on how to install the rack mount kit onto the expansion unit 5 6 Rack mount Front Ears Installation Install the front Rack mount left and right side ears 1 Remove four screws remove front panel from the enclosure 2 Remove two screws front the right side remove small panel 3 Prepare rack mount ears kit 4 Mount and secure the front left rack mount ear...

Page 58: ...tems ExpressBox 2200 5 How to Remove Install Parts 58 Remove four screws and then pull the front panel out from the enclosure Remove two screws on front the right side remove small panel Prepare rack mount ears kit ...

Page 59: ...One Stop Systems ExpressBox 2200 5 How to Remove Install Parts 59 Mount and secure the front left rack mount ear Mount and secure front right rack mount ear ...

Page 60: ...t side ears then proceed with the right side ears or vice versa 1 Start with the left side ear attach and secure the rear bracket to the back of the expansion unit 2 Insert the sliding rear ear 3 Attached and secure the right side rear ear bracket 4 Insert the sliding rear ear Mount the left side rear ears Attach and secure the rear bracket to the back of the expansion unit ...

Page 61: ...One Stop Systems ExpressBox 2200 5 How to Remove Install Parts 61 Insert the sliding rear ear Mount the right side rear ears Attached and secure the right side rear ear bracket ...

Page 62: ...One Stop Systems ExpressBox 2200 62 Insert the sliding rear ear ...

Page 63: ...hangs remove all third Party PCIe cards and try booting up without any cards installed If it still hangs remove the OSS PCIe host interface card from the computer and try booting up without the OSS expansion system attached If it boots up OK without the OSS expansion system attached you may have a problem with your OSS host card or expansion chassis You need to send this expansion unit for service...

Page 64: ...he PCI standard PCI to PCI bridge the problem may be with the OSS expansion system Please contact OSS Technical Support for further assistance or you may need to send your expansion system for repair 6 For MAC Check Apple System profiler On newer Mac OS Operating systems such as 10 7 and above the OSS expansion system will be transparent to the OS Only the PCI card will show up if it is working or...

Page 65: ... the OSS expansion unit Check Apple System profiler or Windows Device Manager to see if the PCIe card is detected or not In Windows Control Panel Device Manager View by connection You should see these three PCI to PCI bridges Right click on it and select Properties select Hardware Ids from dropdown list you should see PCI Ven_111D Q My host computer is having problem linking up with the expansion ...

Page 66: ...er motherboard Try another model or different brand of computer Q Can I move the OSS PCIe host card to another PCIe slot on my computer motherboard A Yes you can as long you follow the proper procedure Shutdown the computer and expansion chassis disconnect the cable and move the host card to another PCIe slot Q Can I replace the existing OSS power supply with a higher wattage power supply A Yes yo...

Page 67: ...s in should be removed or not to be installed prior to shipment to avoid or prevent possible damage Note Expansion board and PCIe PCI cards that arrive damaged in shipment will not be covered under warranty 7 2 Returning Merchandise to One Stop Systems If factory service is required a Service Representative will give you a Return Merchandise Authorization RMA number Put this number and your return...

Page 68: ...es OSS com You can also submit an online sales request using the online contact form http OSS com contact us Item Component Part number 1 Host Interface card 01 04978 03 2 Backplane 01 05011 00 3 Expansion interface card 01 04978 03 4 Power Supply Fanless 550 Watt 40 00008 05 5 iPass x8 x8 Cable 60 00038 03 6 Fan Connector 01 05941 00 7 Low Profile Bracket 03 04611 00 8 Power Cord 60 00029 06 9 Ra...

Page 69: ... resources Empty PCIe slots are ignored during configuration In theory your computer should be able to travel across up to 255 PCI buses to identify and configure all installed PCIe cards Unfortunately not all computers are created equal The 255 PCI bus limit is actually a theoretical maximum The practical limit is somewhat lower but should still be a fairly large number In a desktop computer the ...

Page 70: ...rds For clarification it is necessary to understand that the amount of latency caused by any PCI Bridge even those built into a 3rd Party PCIe card or the computer motherboard itself is negligible nanoseconds and will not produce any visible effect on most systems It is only mentioned here because on a few rare configurations which use some unique PCIe cards with special software drivers the total...

Page 71: ...aisy chain configuration successive PCIe expansion systems are added to the end of the PCI bus hierarchy which adds depth to the PCI PCIe Local Bus by increasing the number of PCI Local Bus levels active in the system configuration Set up 1 Set the Interface card to Host mode Check the SW4 switch Move the switch to OFF Host position 2 Install the Interface card in the Expansion unit use available ...

Page 72: ...ell how many lanes a slot uses by its length http i imgur com JxN1FDm jpg The more lanes the more bandwidth it provides 9 2 How PCI Express Works A PCI Express PCIe link comprises from one to 32 lanes Links are expressed as x1 x2 x4 x8 x16 etc The link is negotiated and configured on power up More lanes deliver faster transfer rates most graphics adapters use at least 16 lanes in today s PCs The c...

Page 73: ...73 9 4 PCI Express Links and Lanes When computer starts up the BIOS detects and enumerates all devices that are plugged into the CPU motherboard It then identifies the links between the devices and creating a map of where the traffic will go and negotiating the width of each link ...

Page 74: ...mit physically longer cards and negotiate the best available electrical and logical connections 9 5 1 PCI Express Sample Connectors The number of lanes actually connected to a to a slot may also be less than the number supported by the physical slot size An example is a x16 lot that runs at x4 which will accept any x1 x2 x4 x8 or x16 card but only provides four lanes Its specification may read as ...

Page 75: ...0MB s of actual data transfer per lane PCIe 3 0 is twice the speed of PCIe 2 0 having a per lane throughput that is only 60 percent more than PCIe 2 0 s 5GT s PCIe 3 0 use more efficient encoding scheme called 128b 130b so the overhead is much less only 1 54 percent This means that a single PCIe 3 0 lane at 8GT s can send 985B s A PCIe 3 0 x4 connection 3 94GB s should have nearly the same bandwid...

Page 76: ... per second B s you need to divide it by eight since a byte is a group of eight bits However because of the 8b 10b encoding we need to make this division by 10 rather than eight This is the reason why with a clock of 2 5 GHz and 5 GHz the x1 bandwidth of these connections are 250 MB s and 500 MB s respectively and not 312 5 MB s and 625 MB s The two extra bits added are called overhead and they ea...

Page 77: ...phics power connectors PCI Express x16 Graphics 150 W ATX Specification Published in October 2004 this standard defines a six pin 2x3 auxiliary power connector capable of delivering an additional 75 W to a graphics card directly from the power supply for a total of 150 W to the card PCI Express 225 W 300 W High Power Card Electromechanical Specification Published in March 2008 this standard define...

Page 78: ... FCC Rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment NOTE The assembler of a pers...

Page 79: ...Manual P N 09 09959 02 Rev A ...

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