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Matrox
®
QuadHead2Go
™
Series
Configuration Guide
Q2G-DP4K and Q2G-DP4K-C
20291-101-0100
October 18, 2019
Matrox
®
QuadHead2Go
™
Series Configuration Guide
Table of contents
Overview ............................................................................................................................ 4
Conventions used in this document ................................................................................. 4 x1 Configurations .............................................................................................................. 5
2x1 configuration ............................................................................................................. 5
3x1 configuration ............................................................................................................. 5
4x1 configuration ............................................................................................................. 5
5x1 configuration ............................................................................................................. 6
6x1 configuration ............................................................................................................. 6 x2 Configurations .............................................................................................................. 7
1x2 configuration ............................................................................................................. 7
2x2 configuration ............................................................................................................. 7
3x2 configuration ............................................................................................................. 7
4x2 configuration ............................................................................................................. 8
5x2 configuration ............................................................................................................. 8
6x2 configuration ............................................................................................................. 9 x3 Configurations ............................................................................................................ 10
1x3 configuration ........................................................................................................... 10
2x3 configuration ........................................................................................................... 10
3x3 configuration ........................................................................................................... 11
4x3 configuration ........................................................................................................... 11
5x3 configuration ........................................................................................................... 12
6x3 configuration ........................................................................................................... 13 x4 Configurations ............................................................................................................ 16
1x4 configuration ........................................................................................................... 16
2x4 configuration ........................................................................................................... 16
3x4 configuration ........................................................................................................... 17
4x4 configuration ........................................................................................................... 18
5x4 configuration ........................................................................................................... 19
6x4 configuration ........................................................................................................... 20 x5 Configurations ............................................................................................................ 23
2x5 configuration ........................................................................................................... 23
3x5 configuration ........................................................................................................... 24
4x5 configuration ........................................................................................................... 25
5x5 configuration ........................................................................................................... 27
6x5 configuration ........................................................................................................... 29
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Series Configuration Guide x6 Configurations ............................................................................................................ 31
2x6 configuration ........................................................................................................... 31
3x6 configuration ........................................................................................................... 32
4x6 configuration ........................................................................................................... 33
5x6 configuration ........................................................................................................... 33
6x6 configuration ........................................................................................................... 35
Appendix A: Logical arguments .................................................................................... 37
Conventions ................................................................................................................... 37
Logical argument A. If (Columns are Even AND Rows are Even) .............................. 40
Logical argument B. If (Columns = 1 OR Rows = 1) ................................................... 40
Logical argument C. If (Columns are odd AND Rows are odd) ................................... 42
Logical argument C1. If (Columns % 4 = 1 AND Rows % 4 = 1) ........................... 42
C2. If (Rows % 4 = 3) ............................................................................................... 42
C3. If (Columns % 4 = 3 AND Rows % 4 = 1) ......................................................... 43
Logical argument D. If (Columns are odd AND Rows are even) OR (Columns are even
AND Rows are odd) ...................................................................................................... 44
D1. If (Columns are odd AND Rows are even) ........................................................ 44
D2. If (Columns are even AND Rows are odd) ........................................................ 45
Contact us ........................................................................................................................ 47
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Matrox
®
QuadHead2Go
™
Series Configuration Guide
Overview
This document outlines possible input resolutions and configurations that can be used with Matrox QuadHead2Go products. This document considers only the configuration of the outputs of QuadHead2Go (not source capabilities, project type, or use case).
The possible configurations outlined in this document use monitors with a resolution of
1920x1080. For configurations that use other resolutions, contact [email protected]
.
For configurations not outlined in this document, see Appendix A:
Note: This guide uses pre-set logical arguments to determine a possible configuration that minimize the number of differing source output resolutions.
Matrox makes no guarantee about the accuracy of information contained in this document. The user is responsible for validating the configurations outlined in this document based on use case, source capabilities, and any other factors that may or may not impact their video wall.
Conventions used in this document
QuadHead2Go unit number #1
3840x2160 output from GPU
(different colors represent different outputs)
Configuration of QuadHead2Go unit #1
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®
QuadHead2Go
™
Series Configuration Guide x1 Configurations
2x1 configuration
For a 2x1 configuration, possible setups include:
1x QuadHead2Go unit
1x 3840x1080 output from the GPU (as input to the QuadHead2Go unit)
3x1 configuration
For a 3x1 configuration, possible setups include:
1x QuadHead2Go unit
1x 5760x1080 output from the GPU (as input to the QuadHead2Go unit)
4x1 configuration
For a 4x1 configuration, possible setups include:
1x QuadHead2Go unit
1x 7680x1080 output from the GPU (as input to the QuadHead2Go unit)
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Matrox
®
QuadHead2Go
™
Series Configuration Guide
5x1 configuration
For a 5x1 configuration, possible setups include:
1x QuadHead2Go unit
1x 7680x1080 output from the GPU (as input to the QuadHead2Go unit)
1x 1920x1080 output from the GPU directly to a monitor
6x1 configuration
For a 6x1 configuration, possible setups include:
2x QuadHead2Go units
2x 5760x1080 outputs from the GPU (as inputs to the QuadHead2Go units)
2x QuadHead2Go units
1x 7680x1080 output from the GPU (as input to the QuadHead2Go units)
1x 3840x1080 output from the GPU (as input to the QuadHead2Go units)
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Matrox
®
QuadHead2Go
™
Series Configuration Guide x2 Configurations
1x2 configuration
For a 1x2 configuration, possible setups include:
1x QuadHead2Go units
1x 1920x2160 output from the GPU (as input to the QuadHead2Go unit)
2x2 configuration
For a 2x2 configuration, possible setups include:
1x QuadHead2Go units
1x 3840x2160 output from the GPU (as input to the QuadHead2Go unit)
3x2 configuration
For a 3x2 configuration, possible setups include:
2x QuadHead2Go units
2x 5760x1080 outputs from the GPU (as inputs to the QuadHead2Go units)
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Matrox
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QuadHead2Go
™
Series Configuration Guide
2x QuadHead2Go units
1x 3840x2160 output from the GPU (as input to the QuadHead2Go)
1x 1920x2160 output from GPU (as input to the QuadHead2Go)
4x2 configuration
For a 4x2 configuration, possible setups include:
2x QuadHead2Go units
2x 7680x1080 outputs from the GPU (as inputs to the QuadHead2Go units)
2x QuadHead2Go units
2x 3840x2160 outputs from the source (as inputs to the QuadHead2Go units)
5x2 configuration
For a 5x2 configuration, possible setups include:
3x QuadHead2Go units
2x 7680x1080 outputs from the GPU (as inputs to the QuadHead2Go units)
1x 1920x2160 outputs from the GPU (as input to the QuadHead2Go unit)
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Matrox
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QuadHead2Go
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Series Configuration Guide
3x QuadHead2Go units
2x 3840x2160 outputs from the GPU (as inputs to the QuadHead2Go units)
1x 1920x2160 outputs from the GPU (as input to the QuadHead2Go unit)
6x2 configuration
For a 6x2 configuration, possible setups include:
3x QuadHead2Go units
3x 3840x2160 outputs from the GPU (as inputs to the QuadHead2Go units)
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Matrox
®
QuadHead2Go
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Series Configuration Guide x3 Configurations
1x3 configuration
For a 1x3 configuration, possible setups include:
1x QuadHead2Go unit
1x 1920x3240 outputs from the GPU (as input to the QuadHead2Go unit)
2x3 configuration
For a 2x3 configuration, possible setups include:
2x QuadHead2Go units
2x 1920x3240 outputs from the GPU (as inputs to the QuadHead2Go units)
2x QuadHead2Go units
1x 3840x2160 outputs from the GPU (as inputs to the QuadHead2Go units)
1x 3840x1080 outputs from the GPU (as inputs to the QuadHead2Go units)
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Matrox
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QuadHead2Go
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Series Configuration Guide
3x3 configuration
For a 3x3 configuration, possible setups include:
3x QuadHead2Go units
3x 5760x1080 outputs from the GPU (as inputs to the QuadHead2Go units)
3x QuadHead2Go units
3x 1920x3240 outputs from the GPU (as inputs to the QuadHead2Go units)
4x3 configuration
For a 4x3 configuration, possible setups include:
3x QuadHead2Go units
3x 7680x1080 outputs from the GPU (as inputs to the QuadHead2Go units)
3x QuadHead2Go units
2x 3840x2160 outputs from the GPU (as input to the QuadHead2Go units)
1x 7680x1080 output from the GPU (as an input to the QuadHead2Go units)
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Matrox
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QuadHead2Go
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Series Configuration Guide
5x3 configuration
For a 5x3 configuration, possible setups include:
5x QuadHead2Go units
5x 1920x3240 outputs from the GPU (as inputs to the QuadHead2Go units)
4x QuadHead2Go units
3x 7680x1080 outputs from the GPU (as inputs to the QuadHead2Go units)
1x 1920x3240 output from the GPU (as input to the QuadHead2Go unit)
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4x QuadHead2Go units
2x 3840x2160 outputs from the GPU (as inputs to the QuadHead2Go units)
1x 7680x1080 output from the GPU (as input to the QuadHead2Go unit)
Matrox
®
QuadHead2Go
™
Series Configuration Guide
1x 1920x3240 output from the GPU (as input to the QuadHead2Go unit)
6x3 configuration
For a 6x3 configuration, possible setups include:
6x QuadHead2Go units
6x 1920x3240 outputs from the GPU (as inputs to the QuadHead2Go units)
5x QuadHead2Go units
3x 3840x2160 outputs from the GPU (as inputs to the QuadHead2Go units)
2x 5760x1080 outputs from the GPU (as inputs to the QuadHead2Go units)
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Matrox
®
QuadHead2Go
™
Series Configuration Guide
5x QuadHead2Go units
3x 3840x2160 outputs from the GPU (as inputs to the QuadHead2Go units)
1x 7860x1080 outputs from the GPU (as input to the QuadHead2Go unit)
1x 3840x1080 output from the GPU (as input to the QuadHead2Go unit)
4x QuadHead2Go units
3x 7680x1080 outputs from the GPU (as inputs to the QuadHead2Go units)
1x 3840x2160 output from the GPU (as input to the QuadHead2Go unit)
1x 3840x1080 output from the GPU (as input to the QuadHead2Go unit)
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Series Configuration Guide
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Matrox
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QuadHead2Go
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Series Configuration Guide x4 Configurations
1x4 configuration
For a 1x4 configuration, possible setups include:
1x QuadHead2Go units
1x 1920x4320 output from the GPU (as input to the QuadHead2Go unit)
2x4 configuration
For a 2x4 configuration, possible setups include:
2x QuadHead2Go units
2x 1920x4320 outputs from the GPU (as inputs to the QuadHead2Go units)
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Matrox
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QuadHead2Go
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Series Configuration Guide
2x QuadHead2Go units
2x 3840x2160 outputs from the GPU (as inputs to the QuadHead2Go units)
3x4 configuration
For a 3x4 configuration, possible setups include:
3x QuadHead2Go units
3x 1920x4320 outputs from the GPU (as inputs to the QuadHead2Go units)
3x QuadHead2Go units
2x 3840x2160 outputs from the GPU (as inputs to the QuadHead2Go units)
1x 1920x4320 output from the GPU (as input to the QuadHead2Go unit)
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Matrox
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QuadHead2Go
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Series Configuration Guide
4x4 configuration
For a 4x4 configuration, possible setups include:
4x QuadHead2Go units
4x 1920x4320 outputs from the GPU (as inputs to the QuadHead2Go units)
4x QuadHead2Go units
4x 3840x2160 outputs from the GPU (as inputs to the QuadHead2Go units)
4x QuadHead2Go units
4x 7680x1080 outputs from the GPU (as inputs to the QuadHead2Go units)
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Matrox
®
QuadHead2Go
™
Series Configuration Guide
5x4 configuration
For a 5x4 configuration, possible setups include:
5x QuadHead2Go units
5x 1920x4320 outputs from the GPU (as inputs to the QuadHead2Go units)
5x QuadHead2Go units
4x 7680x1080 outputs from the GPU (as inputs to the QuadHead2Go units)
1x 1920x4320 output from the GPU (as input to the QuadHead2Go unit)
5x QuadHead2Go units
4x 3840x2160 outputs from the GPU (as inputs to the QuadHead2Go units)
1x 1920x4320 output from the GPU (as input to the QuadHead2Go unit)
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Matrox
®
QuadHead2Go
™
Series Configuration Guide
6x4 configuration
For a 6x4 configuration, possible setups include:
6x QuadHead2Go units
6x 1920x4320 outputs from the GPU (as inputs to the QuadHead2Go units)
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6x QuadHead2Go units
6x 3840x2160 outputs from the GPU (as inputs to the QuadHead2Go units)
Matrox
®
QuadHead2Go
™
Series Configuration Guide
6x QuadHead2Go units
4x 7680x1080 outputs from the GPU (as inputs to the QuadHead2Go units)
2x 1920x4320 outputs from the GPU (as inputs to the QuadHead2Go units)
6x QuadHead2Go units
4x 7680x1080 outputs from the GPU (as inputs to the QuadHead2Go units)
2x 3840x2160 outputs from the GPU (as inputs to the QuadHead2Go units)
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®
QuadHead2Go
™
Series Configuration Guide
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Matrox
®
QuadHead2Go
™
Series Configuration Guide x5 Configurations
2x5 configuration
For a 2x5 configuration, possible setups include:
5x QuadHead2Go units
5x 3840x1080 outputs from the GPU (as inputs to the QuadHead2Go units)
3x QuadHead2Go units
2x 3840x2160 outputs from the GPU (as inputs to the QuadHead2Go units)
1x 3840x1080 outputs from the GPU (as inputs to the QuadHead2Go units)
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Matrox
®
QuadHead2Go
™
Series Configuration Guide
3x QuadHead2Go units
2x 1920x4320 outputs from the GPU (as inputs to the QuadHead2Go units)
1x 3840x1080 outputs from the GPU (as inputs to the QuadHead2Go units)
3x5 configuration
For a 3x5 configuration, possible setups include:
5x QuadHead2Go units
5x 5760x1080 outputs from the GPU (as inputs to the QuadHead2Go units)
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Matrox
®
QuadHead2Go
™
Series Configuration Guide
4x QuadHead2Go units
3x 1920x4320 outputs from the GPU (as inputs to the QuadHead2Go units)
1x 5760x1080 output from the GPU (as input to the QuadHead2Go unit)
4x QuadHead2Go units
2x 3840x2160 outputs from the GPU (as inputs to the QuadHead2Go units)
1x 1920x4320 output from the GPU (as input to the QuadHead2Go unit)
1x 5760x1080 output from the GPU (as input to the QuadHead2Go unit).
4x5 configuration
For a 4x5 configuration, possible setups include:
5x QuadHead2Go units
5x 7680X1080 outputs from the GPU (as inputs to the QuadHead2Go units)
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Matrox
®
QuadHead2Go
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Series Configuration Guide
5x QuadHead2Go units
4x 3840x2160 outputs from the GPU (as inputs to the QuadHead2Go units)
1x 7680x1080 output from the GPU (as input to the QuadHead2Go unit)
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5x QuadHead2Go units
4x 1920x4320 outputs from the GPU (as inputs to the QuadHead2Go units)
1x 7680x1080 output from the GPU (as input to the QuadHead2Go unit)
Matrox
®
QuadHead2Go
™
Series Configuration Guide
5x5 configuration
For a 5x5 configuration, possible setups include:
6x QuadHead2Go units
5x 7680x1080 outputs from the GPU (as inputs to the QuadHead2Go units)
1x 1920x4320 output from the GPU (as input to the QuadHead2Go unit)
1x 1920x1080 output from the GPU directly to a monitor
6x QuadHead2Go units
5x 1920x4320 outputs from the GPU (as inputs to the QuadHead2Go units)
1x 7680x1080 output from the GPU (as input to the QuadHead2Go unit)
1x 1920x1080 output from the GPU directly to a monitor
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Series Configuration Guide
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6x QuadHead2Go units
4x 3840x2160 outputs from the GPU (as inputs to the QuadHead2Go units)
1x 1920x4320 output from the GPU (as input to the QuadHead2Go unit)
1x 7680x1080 output from the GPU (as input to the QuadHead2Go unit)
1x 1920x1080 output from the GPU directly to a monitor
Matrox
®
QuadHead2Go
™
Series Configuration Guide
6x5 configuration
For a 6x5 configuration, possible setups include:
8x QuadHead2Go units
6x 3840x2160 outputs from the GPU (as inputs to the QuadHead2Go units)
2x 5760x1080 outputs from the GPU (as inputs to the QuadHead2Go units)
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Matrox
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QuadHead2Go
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Series Configuration Guide
8x QuadHead2Go units
6x 1920x4320 outputs from the GPU (as inputs to the QuadHead2Go units)
2x 5760x1080 outputs from the GPU (as inputs to the QuadHead2Go units)
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Matrox
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QuadHead2Go
™
Series Configuration Guide x6 Configurations
2x6 configuration
For a 2x6 configuration, possible setups include:
3x QuadHead2Go units; and
3x 3840x2160 outputs from the GPU (as inputs to the QuadHead2Go units)
3x QuadHead2Go units
2x 1920x4320 outputs from the GPU (as inputs to the QuadHead2Go units)
1x 3840x2160 output from the GPU (as input to the QuadHead2Go unit)
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Matrox
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QuadHead2Go
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Series Configuration Guide
3x6 configuration
For a 3x6 configuration, possible setups include:
6x QuadHead2Go units
6x 1920x3240 outputs from the GPU (as inputs to the QuadHead2Go units)
6x QuadHead2Go units
6x 5760x1080 outputs from the GPU (as inputs to the QuadHead2Go units)
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5x QuadHead2Go units
3x 3840x2160 outputs from the GPU (as inputs to the QuadHead2Go units)
2x 1920x3240 outputs from the GPU (as inputs to the QuadHead2Go units)
Matrox
®
QuadHead2Go
™
Series Configuration Guide
4x6 configuration
For a 4x6 configuration, possible setups include:
6x QuadHead2Go units
6x 3840x2160 outputs from the GPU (as inputs to the QuadHead2Go units)
5x6 configuration
For a 5x6 configuration, possible setups include:
10x QuadHead2Go units
10x 1920x3240 outputs from the GPU (as inputs to the QuadHead2Go units)
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Series Configuration Guide
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QuadHead2Go
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Series Configuration Guide
8x QuadHead2Go units
6x 3840x2160 outputs from the GPU (as inputs to the QuadHead2Go units)
2x 1920x3240 outputs from the GPU (as inputs to the QuadHead2Go units)
6x6 configuration
For a 6x6 configuration, possible setups include:
9x QuadHead2Go units
9x 3840x2160 outputs from the GPU (as inputs to the QuadHead2Go units)
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QuadHead2Go
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Series Configuration Guide
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QuadHead2Go
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Series Configuration Guide
Appendix A: Logical arguments
The following logical arguments serve as guidelines for possible setups of different video wall arrays. These setups try, as much as possible, to maximize the number of outputs that share the same resolution.
Conventions 𝒏 = 𝑻𝒐𝒕𝒂𝒍 𝑶𝒖𝒕𝒑𝒖𝒕𝒔 % 𝟒 = 𝒓𝒆𝒎𝒂𝒊𝒏𝒅𝒆𝒓 𝒐𝒇
𝑻𝒐𝒕𝒂𝒍 𝑶𝒖𝒕𝒑𝒖𝒕𝒔
𝟒
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Series Configuration Guide
Example: If the array is 2x7, then there are 2 columns and 7 rows, for a total of 14 outputs.
Since 𝑛 = 𝑇𝑜𝑡𝑎𝑙𝑂𝑢𝑡𝑝𝑢𝑡𝑠 % 4 = 𝑟𝑒𝑚𝑎𝑖𝑛𝑑𝑒𝑟𝑜𝑓 (
������������
�
)
, in this case: 𝒄𝒆𝒊𝒍𝒊𝒏𝒈𝑶𝒇 � 𝒙 𝒚�
= 𝒙 𝒚 𝒓𝒐𝒖𝒏𝒅𝒆𝒅 𝒖𝒑 𝑛 = 14 % 4 = 𝑟𝑒𝑚𝑎𝑖𝑛𝑑𝑒𝑟 𝑜𝑓
14
4 =
𝟐
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Matrox
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QuadHead2Go
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Series Configuration Guide
Example: If the array is 2x7, then there are 2 columns and 7 rows, for a total of 14 outputs.
To find 𝑐𝑒𝑖𝑙𝑖𝑛𝑔𝑂𝑓 �
����� �������
�
�
, do the following:
𝑇𝑜𝑡𝑎𝑙 𝑂𝑢𝑡𝑝𝑢𝑡𝑠
4
=
14
4 = 3 𝑤𝑖𝑡ℎ 𝑎 𝑟𝑒𝑚𝑎𝑖𝑛𝑑𝑒𝑟 𝑜𝑓 2
Since we want the 𝑐𝑒𝑖𝑙𝑖𝑛𝑔𝑂𝑓 �
����� �������
�
�
, and since the quotient above gives a remainder, then the answer would be rounded up to give 4 . 𝒇𝒍𝒐𝒐𝒓𝑶𝒇 � 𝒙 𝒚�
= 𝒙 𝒚 𝒓𝒐𝒖𝒏𝒅𝒆𝒅 𝒅𝒐𝒘𝒏
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Series Configuration Guide
Example: If the array is 2x7, then there are 2 columns and 7 rows, for a total of 14 outputs.
To find 𝑓𝑙𝑜𝑜𝑟𝑂𝑓 �
����� �������
�
�
, do the following:
𝑇𝑜𝑡𝑎𝑙 𝑂𝑢𝑡𝑝𝑢𝑡𝑠
4
=
14
4 = 3 𝑤𝑖𝑡ℎ 𝑎 𝑟𝑒𝑚𝑎𝑖𝑛𝑑𝑒𝑟 𝑜𝑓 2
Since we want the 𝑓𝑙𝑜𝑜𝑟𝑂𝑓 �
����� �������
�
�
, and since the quotient above gives a remainder, then the answer would be rounded down to give 3 .
Logical argument A. If (Columns are Even AND Rows are Even)
Examples 2x2, 2x6, 4x4, 8x8, 10x42, 20x20, 50x50, 100x100, etc.
# QuadHead2Go units
𝑇𝑜𝑡𝑎𝑙 𝑂𝑢𝑡𝑝𝑢𝑡𝑠
4
# GPU outputs Same as # QuadHead2Go units.
Place all the QuadHead2Go units in a 2x2 configuration.
Example:
Configuration
Reason
Exceptions
Ensures the least number of inconsistent resolutions from the source to the QuadHead2Go units.
None.
Logical argument B. If (Columns = 1 OR Rows = 1)
Examples 1x2, 3x1, 5x1, 17x1, 27x1, 1x100, 250x1, etc.
# QuadHead2Go If n = 1
𝑇𝑜𝑡𝑎𝑙 𝑜𝑢𝑡𝑝𝑢𝑡𝑠
4 𝒓𝒐𝒖𝒏𝒅𝒆𝒅 𝒅𝒐𝒘𝒏
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Series Configuration Guide units
# GPU outputs
Configuration
Reason
Exceptions
If n ≠ 1
If n = 1
If n ≠ 1
If n = 1
If n ≠ 1
𝑇𝑜𝑡𝑎𝑙 𝑜𝑢𝑡𝑝𝑢𝑡𝑠
4 𝒓𝒐𝒖𝒏𝒅𝒆𝒅 𝒖𝒑
# QuadHead2Go units + 1
Same as # QuadHead2Go units.
If rows = 1:
Place each QuadHead2Go unit in a 4x1 configuration. The right-most single monitor is a direct 1920x1080 output from the source.
If columns = 1:
Place each QuadHead2Go unit in a 1x4 configuration. The bottom-most single monitor is a direct 1920x1080 output from the source.
Example:
If rows = 1:
Place each QuadHead2Go unit in a 4x1 configuration, except the right-most or left-most
QuadHead2Go, which will be in a nx1 configuration.
If columns = 1:
Place each QuadHead2Go unit in a 1x4 configuration, except the top-most (or bottommost) QuadHead2Go, which will be in a 1xn configuration.
Example:
A horizontal or vertical line is formed.
1x6, 6x1, 1x9, 9x1.
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Logical argument C. If (Columns are odd AND Rows are odd)
Logical argument C1. If (Columns % 4 = 1 AND Rows % 4 = 1)
Examples
Configuration
5x5, 13x13, 9x17, 21x25, 29x29, 33x33, etc.
# QuadHead2Go units
�
𝑇𝑜𝑡𝑎𝑙 𝑜𝑢𝑡𝑝𝑢𝑡𝑠
4 𝒓𝒐𝒖𝒏𝒅𝒆𝒅 𝒅𝒐𝒘𝒏� + 1
# GPU outputs # QuadHead2Go units + 1.
1 Place
�𝑓𝑙𝑜𝑜𝑟𝑂𝑓
# �� ����
�
� ∗ (# 𝑜𝑓 𝑐𝑜𝑙𝑢𝑚𝑛𝑠 )
QuadHead2Go units in a 1x4 configuration. The units fill all but the bottom row of monitors.
2 Place
�𝑓𝑙𝑜𝑜𝑟𝑂𝑓
# �� �������
�
�
units in a 4x1 configuration in the bottom row.
One monitor is left over. Connect this monitor directly to a source that uses a 1920x1080 resolution.
Example:
Reason
Exceptions
Uses every single output from every single QuadHead2Go unit.
Connecting the source directly to a monitor avoids the need to purchase a QuadHead2Go unit for a single output.
None.
C2. If (Rows % 4 = 3)
Examples 3x3, 3x7, 7x7, 11x7, 15x19, 23x27, 31x31, 35x35, etc.
# QuadHead2Go units
�𝑐𝑒𝑖𝑙𝑖𝑛𝑔𝑂𝑓
# �� ����
�
� ∗ (# 𝑜𝑓 𝑐𝑜𝑙𝑢𝑚𝑛𝑠 )
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# GPU outputs # QuadHead2Go units.
1 Place
�𝑓𝑙𝑜𝑜𝑟𝑂𝑓
# �� ����
�
� ∗ (# 𝑜𝑓 𝑐𝑜𝑙𝑢𝑚𝑛𝑠 )
QuadHead2Go units in a 1x4 configuration. These fill all but the bottom 3 rows of monitors.
2 Place
# 𝑜𝑓 𝑐𝑜𝑙𝑢𝑚𝑛𝑠
units in a 1x3 configuration in the bottom 3 rows.
Example:
Configuration
Reason
Every QuadHead2Go uses at least 3 out of 4 possible outputs. The
GPU needs to supply only two different resolutions.
None. Exceptions
C3. If (Columns % 4 = 3 AND Rows % 4 = 1)
Examples
Configuration
7x5, 7x9, 11x5, 15x9, 19x21, 99x101, etc.
# QuadHead2Go units
𝑇𝑜𝑡𝑎𝑙 𝑜𝑢𝑡𝑝𝑢𝑡𝑠
4 𝒓𝒐𝒖𝒏𝒅𝒆𝒅 𝒖𝒑
# GPU outputs # QuadHead2Go units.
1 Place
�𝑓𝑙𝑜𝑜𝑟𝑂𝑓
# �� ����
�
� ∗ (# 𝑜𝑓 𝑐𝑜𝑙𝑢𝑚𝑛𝑠 )
QuadHead2Go units in a 1x4 configuration. These fill all the rows of monitors except the bottom row.
2 Place �𝑓𝑙𝑜𝑜𝑟𝑂𝑓 the bottom row.
# �� �������
�
� units in 4x1 configuration in
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Reason
3 Place the single remaining QuadHead2Go in a 3x1 configuration at the bottom right of the array.
The remaining QuadHead2Go unit uses only 3 of its 4 outputs.
The other QuadHead2Go units use all 4 outputs.
None. Exceptions
Logical argument D. If (Columns are odd AND Rows are even)
OR (Columns are even AND Rows are odd)
D1. If (Columns are odd AND Rows are even)
Examples 5x8, 9x10, 7x2, 11x12, 27x18, etc.
# QuadHead2Go units
𝑇𝑜𝑡𝑎𝑙 𝑜𝑢𝑡𝑝𝑢𝑡𝑠
4 𝒓𝒐𝒖𝒏𝒅𝒆𝒅 𝒖𝒑
# GPU outputs # QuadHead2Go units.
Place all QuadHead2Go units in a 1x4 configuration starting at the top left of the video wall array.
If rows are multiples of 4
Configuration
If rows aren’t multiples of 4
Place
�
(# �� ���� )
�
∗ 𝑓𝑙𝑜𝑜𝑟𝑂𝑓 �
# �� �������
�
��
QuadHead2Go units in a 2x2 configuration starting at the top left of the video wall array.
This fills all the columns in the array except the right-most column.
Next, place 𝑓𝑙𝑜𝑜𝑟𝑂𝑓 �
# �� ����
�
�
QuadHead2Go units in a 1x4 configuration starting at the top right side of the video wall array.
If the array has a number of rows that’s divisible by 4, place the final QuadHead2Go unit in 1x4.
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Place the last QuadHead2Go unit in 1x2.
Example:
Reason
Most of the QuadHead2Go units will be in 2x2, and as many as possible of the 4 outputs on a QuadHead2Go will be used.
3x2, 3x4, x6 configurations. Exceptions
D2. If (Columns are even AND Rows are odd)
Examples 4x5, 2x7, 4x9, 12x27, 20x49, 50x101, etc.
# QuadHead2Go units
𝑇𝑜𝑡𝑎𝑙 𝑜𝑢𝑡𝑝𝑢𝑡𝑠
4 𝒓𝒐𝒖𝒏𝒅𝒆𝒅 𝒖𝒑
# GPU outputs # QuadHead2Go units.
Place all QuadHead2Go units in a 4x1 configuration starting at the top left of the video wall array.
Example:
If columns are multiples of 4
Configuration
If columns aren’t multiples of 4
Place
�
(# �� ������� )
�
∗ 𝑓𝑙𝑜𝑜𝑟𝑂𝑓 �
# �� ����
�
��
QuadHead2Go units in a 2x2 configuration starting at the top left of the video wall array.
This fills all the rows of the array except the bottom-most row.
Next, place 𝑓𝑙𝑜𝑜𝑟𝑂𝑓 �
# �� �������
�
�
QuadHead2Go units in 4x1 configuration starting
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If the array has a number of rows that’s divisible by 4, place the final QuadHead2Go unit in 4x1.
Place the final QuadHead2Go unit in 2x1.
Example:
Reason
Exceptions
Most of the QuadHead2Go units will be in 2x2, and as many as possible of the 4 outputs on a QuadHead2Go are used.
2x3, 4x3, and 6x configurations.
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Contact us
The Matrox web site has product literature, press releases, technical material, a sales office list, trade show information, and other relevant material. Visit us at www.matrox.com/graphics .
If you have any questions or comments about our products or solutions, contact us at www.matrox.com/graphics/contact .
You can get technical assistance by contacting Matrox technical support at [email protected]
.
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Disclaimer
Information in this document may contain technical inaccuracies or typographical errors.
Information may be changed or updated without notice. Matrox reserves the right to make improvements and/or changes in the products, programs and/or specifications described in this information at any time without notice. All trademarks and trade names, service marks and logos referenced herein belong to their respective owners.
Copyright © 2019 Matrox Graphics Inc. All rights reserved. Matrox and Matrox product names are registered trademarks and/or trademarks of Matrox Electronics Systems Ltd. and/or Matrox Graphics Inc. in Canada and other countries. All other company and product names are registered trademarks and/or trademarks of their respective owners.
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