Chenbro RM437 Series User manual

A document provides an overview of product features, functions, architecture, and support specifications.
RM437 Series
Rackmount Chassis User Manual

Disclaimer
No license (express or implied, by estoppel or otherwise) to any intellectual property rights is granted by this document.
Chenbro disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability,
fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of
dealing, or usage in trade.
This document contains information on products, services and/or processes in development. All information provided here is
subject to change without notice. Contact your Chenbro representative to obtain the latest Configuration Guide.
The products and services described may contain defects or errors known as errata which may cause deviations from published
specifications. Current characterized errata are available on request.
Chenbro, and the Chenbro logo are trademarks of Chenbro Micom Co., Ltd. in the worldwide.
*Other names and brands may be claimed as the property of others.
© 2023 Chenbro Micom Co., Ltd.

RM437 Series
Table of Contents|3
Table of Contents
List of Figures..................................................................................................................................................................................5
List of Tables....................................................................................................................................................................................8
1. Product Overview...............................................................................................................................................................10
1-1 System Features Overview ................................................................................................................... 11
1-2 Front Panel ............................................................................................................................................. 12
1-3 Rear Panel .............................................................................................................................................. 12
1-4 Front Control Panel............................................................................................................................... 13
1-5 Storage Configurations ........................................................................................................................ 14
1-6 Chassis Dimensions............................................................................................................................... 15
1-7 Available Rack Mounting Kit Options (Refer to “Installation”)........................................................ 16
1-8 System Level Environmental Specifications....................................................................................... 17
1-9 System Packaging ................................................................................................................................. 18
2. System Components Removal and Installation ......................................................................................................19
2-1. Top Cover Removal and Installation................................................................................................... 20
2-2 Hot-swap HDD Assembly Removal and Installation ........................................................................ 22
2-3 Fan Assembly Removal and Installation............................................................................................. 25
2-5 Full Height PCI-e Card Installation...................................................................................................... 29
2-6 PSU Installation and Removal.............................................................................................................. 30
2-7 Slide Rail Installation............................................................................................................................. 31
2-8 System Maintenance............................................................................................................................. 32
2-9 HDD Cage Removal and Installation (For Storage Backplane Maintenance)................................ 33
3. Backplane ..............................................................................................................................................................................38
3-1 Storage Backplane Options ................................................................................................................. 38
3-2 3.5” 12-port 12Gb/s SAS Active Backplane........................................................................................ 40
3-3 12 x 3.5” SAS/SATA/NVMe(PCIe Gen4) HDD Passive Backplane.................................................... 43
3-4 2 x 2.5” Drive Bay Accessory Kit .......................................................................................................... 47
3-5 2 x 2.5” NVMe U.2 Gen3 Backplane (optional).................................................................................. 47
3-6 2 x 2.5” NVMe U.2 Gen4 Backplane (optional).................................................................................. 51
4. Cable Routing ......................................................................................................................................................................57

RM437 Series
Table of Contents|4
4-1 FIO Cable Routing ................................................................................................................................. 58
4-2 USB 3.0 Cable Routing.......................................................................................................................... 59
4-3 I2C Cable Routing .................................................................................................................................. 60
4-4 Mini SAS HD Cable Routing................................................................................................................. 61
5. Maintenance and Service ................................................................................................................................................63

RM437 Series
Table of Contents|5
List of Figures
Figure 1 RM437 Overview.................................................................................................................................... 11
Figure 2 RM437 Major Component Overview................................................................................................... 11
Figure 3 RM437 Front Panel ................................................................................................................................ 12
Figure 4 Back Panel............................................................................................................................................... 12
Figure 5 Front Control Panel................................................................................................................................ 13
Figure 6 12 x 3.5" Drive-bay Configuration (Front) .......................................................................................... 14
Figure 7 12 x 3.5" Drive-bay Configuration (Right) .......................................................................................... 14
Figure 8 12 x 3.5" Drive-bay Configuration (Left) ............................................................................................. 14
Figure 9 Chassis Dimensions ............................................................................................................................... 15
Figure 10 Rear Top Cover Removal .................................................................................................................... 20
Figure 11 Front Top Cover Removal................................................................................................................... 20
Figure 12 Front Top Cover Installation............................................................................................................... 21
Figure 13 Rear Top Cover Installation ................................................................................................................ 21
Figure 14 3.5" Hot-swap HDD Assembly Removal (Front) .............................................................................. 22
Figure 15 3.5" Hot-swap HDD Assembly Removal (Side) ................................................................................ 22
Figure 16 3.5" Hot-swap HDD Assembly Installation (Front) .......................................................................... 23
Figure 17 3.5" Hot-swap HDD Assembly Installation (Side) ............................................................................ 23
Figure 18 HDD Installation (Tool-less)................................................................................................................ 24
Figure 19 HDD Removal (Tool-less).................................................................................................................... 24
Figure 20 Fan Assembly Removal ....................................................................................................................... 25
Figure 21 Fan Assembly Installation ................................................................................................................... 25
Figure 22 Fan Module Removal (Middle)........................................................................................................... 26
Figure 23 Fan Module Installation (Middle) ...................................................................................................... 26
Figure 24 Fan Module Removal (Rear)............................................................................................................... 27
Figure 25 Fan Module Installation (Rear)........................................................................................................... 27
Figure 26 2.5” 2-Bay Drive Backplane Installation (Back Panel)...................................................................... 28
Figure 27 2.5" 2-Bay Drive Installation (Back Panel)......................................................................................... 28
Figure 28 Full Height Back Panel Bracket Installation ...................................................................................... 29

RM437 Series
Table of Contents|6
Figure 29 CRPS Module Installation ................................................................................................................... 30
Figure 30 CRPS Module Removal ....................................................................................................................... 30
Figure 31 Slide Rail Installation 1 (384-RAL00001BA0).................................................................................... 31
Figure 32 Slide Rail Installation 2 (384-RAL00001BA0).................................................................................... 31
Figure 33 Removal of Whole System from the Rack........................................................................................ 32
Figure 34 Installation of Whole System into the Rack ..................................................................................... 32
Figure 35 HDD Cage Removal (Front) ................................................................................................................ 33
Figure 36 Server Board Tray Removal (Front).................................................................................................... 34
Figure 37 HDD Cage Removal (Right) ................................................................................................................ 35
Figure 38 HDD Cage Removal (Left)................................................................................................................... 35
Figure 39 HDD Cage Installation (Left)............................................................................................................... 36
Figure 40 HDD Cage Installation (Right)............................................................................................................ 36
Figure 41 HDD Cage Installation (Front)............................................................................................................ 37
Figure 42 Server Board Tray Installation (Front) ............................................................................................... 37
Figure 43 Drive Tray LED Identifications ............................................................................................................ 38
Figure 44 Backplane Front View.......................................................................................................................... 40
Figure 45 Backplane Rear View ........................................................................................................................... 41
Figure 46 Backplane Front View.......................................................................................................................... 43
Figure 47 Backplane Rear View ........................................................................................................................... 44
Figure 48 2.5" 2-bay Drive Module..................................................................................................................... 47
Figure 49 Backplane Front View.......................................................................................................................... 48
Figure 50 Backplane Rear View ........................................................................................................................... 48
Figure 51 Backplane Front View.......................................................................................................................... 51
Figure 52 Backplane Rear View ........................................................................................................................... 52
Figure 53 FIO Cable Routing................................................................................................................................ 58
Figure 54 USB 3.0 Cable Routing ........................................................................................................................ 59
Figure 55 I2C Cable Routing 1(Bottom).............................................................................................................. 60
Figure 56 I2C Cable Routing 2(Top) .................................................................................................................... 60

RM437 Series
Table of Contents|7
Figure 57 Mini SAS HD Cable Routing for Chassis with 3 x 12 Port 12Gbps SAS Expander Backplane 1
(Bottom) ................................................................................................................................................................. 61
Figure 58 Mini SAS HD Cable Routing for Chassis with 3 x 12 Port 12Gbps SAS Expander Backplane 2
(Top)........................................................................................................................................................................ 61
Figure 59 Mini SAS HD Cable Routing 1 x 12 port 8T4S Gen 4 Backplane & 2 x 12 port 12Gbps SAS
Expander Backplane 1 (Bottom).......................................................................................................................... 62
Figure 60 Mini SAS HD Cable Routing 1 x 12 port 8T4S Gen 4 Backplane & 2 x 12 port 12Gbps SAS
Expander Backplane 2 (Top) ................................................................................................................................ 62

RM437 Series
Table of Contents|8
List of Tables
Table 1 RM437 Specifications.............................................................................................................................. 10
Table 2 Front Control Panel................................................................................................................................. 13
Table 3 Slide Rail Option...................................................................................................................................... 16
Table 4 System Environmental Specifications Summary ................................................................................. 17
Table 5 Drive Power LED/Activity LED Behavior................................................................................................ 38
Table 6 Backplane Specifications ........................................................................................................................ 40
Table 7 Connector and Pin Header Function Description ............................................................................... 41
Table 8 DIP Switch Settings (SW1)...................................................................................................................... 42
Table 9 Fan Settings for RM43736...................................................................................................................... 42
Table 10 I2C Mode for RM43736......................................................................................................................... 42
Table 11 I2C ADDR Settings for RM43736 ......................................................................................................... 42
Table 12 Backplane Specifications ...................................................................................................................... 43
Table 13 Connector and Pin Header Function Description ............................................................................. 44
Table 14 DIP Switch Settings (SW1).................................................................................................................... 45
Table 15 DIP Switch 1-2: I2C Address Setting.................................................................................................... 45
Table 16 SW1 DIP Switch 3-4: Platform Setting................................................................................................ 45
Table 17 Intel Purley Platform ............................................................................................................................. 45
Table 18 BRCM VPP Card..................................................................................................................................... 46
Table 19 Intel Whitley T-shape Platform............................................................................................................ 46
Table 20 Backplane Specifications ...................................................................................................................... 47
Table 21 Connector and Pin Header Function Description ............................................................................. 49
Table 22 DIP Switch Settings (SW1).................................................................................................................... 49
Table 23 Thermal Sensor I2C Address Setting (U1)........................................................................................... 49
Table 24 I2C MUX Address Setting Read NVMe HDD Driver (U3).................................................................. 50
Table 25 HSBP MCU Address Setting (U2) ........................................................................................................ 50
Table 26 Backplane Specifications ...................................................................................................................... 51
Table 27 Connector and Pin Header Function Description ............................................................................. 52
Table 28 DIP Switch Setting (SW1) ..................................................................................................................... 53

RM437 Series
Table of Contents|9
Table 29 Thermal sensor I2C Address Setting (U1) ........................................................................................... 53
Table 30 I2C MUX Address Setting Read NVMe HDD Driver (U3).................................................................. 53
Table 31 HSBP MCU Address Setting (U2) ........................................................................................................ 53
Table 32 DIP Switch Setting (SW2) ..................................................................................................................... 53
Table 33 DIP Switch Setting (SW3) ..................................................................................................................... 54
Table 34 Thermal Sensor I2C Address Setting (U1)........................................................................................... 54
Table 35 I2C MUX Address Setting Read NVMe HDD Driver (U3).................................................................. 54
Table 36 HSBP MCU Address Setting (U2) ........................................................................................................ 54
Table 37 Slimline 4i Connector (CH3)................................................................................................................. 55
Table 38 Slimline 4i Connector (CH4)................................................................................................................. 56

1. Product Overview
This RM437 Series offers a high-density enterprise solution for data centers and high performance applications with greater
storage and user-friendly maintenance. This 4U tri-load storage server chassis is designed with 24 x 3.5” side access and 12 x
3.5” front access hot swap HDDs, supporting 8 SAS/SATA/ NVMe Gen4 SSD drives out of total 36 HDD drives and up to EATX
motherboard. This chapter provides a high-level overview of the system features of this product series. More details for each
major component, feature, or option are provided in the following chapters.
Table 1 RM437 Specifications
Feature
Description
Supported M/B Form Factor
EATX (12" x 13 "), ATX (12" x 9.6"), mATX (9.6" x 9.6“)
Dimension (D x W x H)
660 mm x 438 mm x 17 5mm (26 x 17.2 x 6.9 inch)
Drive Bay
3 x 12 x 3.5” HDD Hot-swap Module, front / left / right
2 x 2.5” HDD Hot-swap Module, Rear (Option)
Storage Backplane
-12 port 12Gbps SAS Expander Backplane, front / left / right
-12 port 8T4S Gen 4 Backplane, front
*Option:
-2 Port 12Gbps SAS/SATA, rear
-2 Port NVMe Gen3, rear
-2 Port NVMe Gen4, rear
PSU Form Factor
Redundant CRPS (1+1), 1200W or 1600W(80+Platinum)
Indicators
1 x Power Status, 2 x LAN Activity, 1 x UID,1 x HDD Activity, 3 x HDD Status (L/M/R), 1 x
System Status
Front Control
1 x Power On/Off, 1 x System Reset, 1 x UID, 2 x USB 3.0
Cooling Fans
Middle: 80mm (T:38mm) fan module with fan bar
-Performance: 4 x 14400RPM, PWM, Hot-swap
-Mainstream: 4 x 11000RPM, PWM, Hot-swap
Rear: 80mm (T:38mm) fan module, 4 x 11000 RPM, PWM, Hot-swap
Expansion Slot Opening
7 x Low Profile or 3 x Full Height (optional)
Supported Rack Mount Kit
(Options)
•Slide Rail Kit with CMA Support: Works for 438 mm Width Rack Chassis, P2P: 26” to
35”, Traveling Distance 28.1”, Maximum Load Weight: 59 KG, Tool-less: 384-
RAL00001BA0
•Cable Management Arm (CMA): 84H349010-006
Net Weight
25 kg/PC
Gross Weight
28.64kg/CTN
Cubic Feet
5.34
Pallet Size
1200 x 840 x 120 mm
Cartons Per Pallet
6 PCS/Pallet
Container Loading
20’ FCL: 120 PCS / 40’ FCL: 276 PCS (Single Packing + Pallet)

RM437 Series
Product Overview|11
1-1 System Features Overview
Figure 1 RM437 Overview
Figure 2 RM437 Major Component Overview
A. Front Top Cover
B. Rear Top Cover
C. Fan Assembly
D. Motherboard Tray
E. Power Supply Unit
F. 2.5” HDD Cage
G. 3.5” HDD Cage (Front)

RM437 Series
Product Overview|12
1-2 Front Panel
Figure 3 RM437 Front Panel
A. Front Control Panel
B. Info Tag
C. Rack Handles
D. HDD Tray
1-3 Rear Panel
Figure 4 Back Panel
A. CRPS Power Supply
B. I/O Shield
C. Low Profile Expansion Slots
D. 2 x 2.5” HDD Tray
E. Rear Fan

RM437 Series
Product Overview|13
1-4 Front Control Panel
Figure 5 Front Control Panel
Table 2 Front Control Panel
*Note: When HDD failure occurs, corresponding HDD LED failure lights on the front control panel will be on to indicate where
the HDD locates (front/left/right). Operators may open the corresponding top cover and perform HDD maintenance according
to the drive tray LED behaviors.
Label
ICON
Indicator, Button, or Connector
A
Power Button
B UID Button
C Reset Button
D USB 3.0
E
HDD Activity LED
F
System Alarm LED
G LAN1, LAN2 Activity LED
H* L Left HDD Failure LED
I* R Right HDD Failure LED
J* M Front HDD Failure LED

RM437 Series
Product Overview|14
1-5 Storage Configurations
Figure 6 12 x 3.5" Drive-bay Configuration (Front)
Figure 7 12 x 3.5" Drive-bay Configuration (Right)
Figure 8 12 x 3.5" Drive-bay Configuration (Left)

RM437 Series
Product Overview|15
1-6 Chassis Dimensions
Figure 9 Chassis Dimensions

RM437 Series
Product Overview|16
1-7 Available Rack Mounting Kit Options (Refer to “Installation”)
Advisory Note – Available rack and cabinet mounting kits are not designed to support shipment of the server system
while installed in a rack. If you choose to do so, Chenbro advises you to verify your shipping configuration with
appropriate shock and vibration testing before shipment. Chenbro does not perform shipping tests which cover the
complex combination of unique rack offerings and custom packaging options.
Caution: Exceeding the specified maximum weight limit of a given rail kit or misalignment of the server in the rack may
result in failure of the rack rails, causing damage to the system or personal injury. Two persons to operate or the use of
a mechanical assist tool to install and align the server into the rack is highly recommended.
Available rack mounting kits:
Table 3 Slide Rail Option
Part Number 384-RAL00001BA0
Rail Dimensions (mm/inch)
844/33.23
Applicable Cabinet-Post to Post (mm/inch)
599 to 892.4/23.58 to 35.13
3 Section/2 Section
3 Section
Post to Post Distance (mm/inch)
663 to 932/26.10 to 36.69
Traveling Distance (mm/inch)
724/28.50
Support Chassis Width (mm)
438
Loading (kg)
36 kg
Tool-less
Yes
Support CMA
Yes

RM437 Series
Product Overview|17
1-8 System Level Environmental Specifications
The following table defines the system level specifications under operating and non-operating environments.
Table 4 System Environmental Specifications Summary
Parameter Specifications
Temperature
Operating
5º C to 35º C (41º F to 95º F)
Relative Humidity: 10% to 80% (non-condensing)
Temperature
Non-Operating
-40º C to 70º C (-40º F to 158º F)
Humidity
Non-Operating
25° C to 35° C (77º F to 95º F)
50% to 90% (non-condensing)
Unpackaged Shock
Non-Operating
Trapezoidal 25G (all six sides tested)
Unpackaged
Vibration
Operating
0.26 Grms at 5 Hz to 350 Hz (all three axes).
Sag & bow
Non-Operating
Tolerance analysis among rack rail and chassis
Actual on rack test with EIA Go-NoGo fixture
EMI
Pre-scan
Radiated Emissions
FCC Part 15 / EN 55032 / CISPR 32, Class A
30MHz ~18GHz
ESD
Contact and Air Discharge
IEC 61000-4-2
Packaged Vibration
Non-Operating
ISTA 1A (weight equal or less than 68kg)
Packaged Drop
Non-Operating
Refer to Intel blue book
Drop height change is based on product weight.
Gross weight 36.28 to 45.34 Kg : 45.72 cm (18 inches).
Validation: Test requirement is 6 face drops, 2 corner drops and 3 edge
drops for a total of 11 drops.
Acceptable Conditions:
Carton corner or edge sunken but does not break.
Carton broken in inside surface, but not too big and it does not pierce
through surface.
The basic functioning is normal.

RM437 Series
Product Overview|18
1-9 System Packaging
The original Chenbro packaging, where the server system is delivered, is designed to provide protection for L5 configuration and
tested to meet ISTA (International Safe Transit Association) Test Procedure 1A (2008). The packaging is also designed to be
reused for shipment after the system integration has been completed.
The original packaging includes the shipping box, and various protective inner packaging components, which are designed to
function together as a protective packaging system. When reused, all of the original packaging material must be used, including
box and each inner packaging component. In addition, all inner packaging components MUST be reinstalled in the proper
location to ensure adequate protection to the system for subsequent shipment.
λNOTE: The design of the inner packaging components does not prevent improper placement within the packaging
assembly. There is only one correct packaging assembly that will allow the package to meet the ISTA (International Safe
Transit Association) Test Procedure 1A (2008).
Failure to follow the specified packaging assembly instructions may result in damage to the system during shipment.
λNOTE: A L5 system does not include M/B, processors, memory, drives, or add-in cards. It is the system
configuration as shipped from Chenbro. Weights of integrated system (system configurations that include the items above)
will vary depending on the final system configuration.

2. System Components Removal and
Installation
RM437 series supports the following storage options:
•Up to 36 x 3.5” hot-swap HDD SAS/SATA
•24 + 4 x 3.5” hot-swap HDD SAS/SATA & 8 x 3.5” hot-swap HDD SAS/SATA/NVMe
•2 x 2.5’’ hot-swap SAS/SATA HDD/SDD (optional)
•2 x 2.5’’ hot-swap NVMe Gen3 (optional)
•2 x 2.5’’ hot-swap NVMe Gen4 (optional)

RM437 Series
System Components Removal and Installation|20
2-1. Top Cover Removal and Installation
Figure 10 Rear Top Cover Removal
1. Loosen two screws on each side of the rear top cover.
2. Pull the latch as shown to release the cover.
3. Remove the cover vertically.
λNOTE: Remove the rear top cover before the front top cover.
Figure 11 Front Top Cover Removal
1. Lift up the cover as shown and remove it vertically.