Dell ChengMing 3967 Field Service Manual
ChengMing 3967
Field Service Manual
Regulatory Model: D25M
Regulatory Type: D25M001
Notes, cautions, and warnings
NOTE: A NOTE indicates important information that helps you make better use of your product.
CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.
WARNING: A WARNING indicates a potential for property damage, personal injury, or death.
© 2016 Dell Inc. or its subsidiaries. All rights reserved. This product is protected by U.S. and international copyright and intellectual property laws. Dell and
the Dell logo are trademarks of Dell Inc. in the United States and/or other jurisdictions. All other marks and names mentioned herein may be trademarks of
their respective companies.
2016 - 12
Rev. A00
Introduction
Welcome
The goal of this reference material is to provide field technicians with the information necessary to support the ChengMing 3967 systems
at customer locations and to prepare technical support agents to accurately and effectively resolve customer inquiries and technical
issues.
RTS Date: Worldwide — 12/15/2016
Department: Information Development
Author: Deepa S N
Contributing Sources: ChengMing Engineering/Extended team
1
Introduction 3
System Information
Product Overview
ChengMing intends to bring best customer experience in China commercial Desktop marketing by integrating into China ecosystem.
ChengMing is the first generation system catering to the China and Hong Kong commercial base. It intends to generate incremental It
supports both Kabylake and Skylake processors. These systems leverages the Vostro segment's processor cost advantage.
Equipped with Chinese certifications to prove product quality and reliability. It supports local eClassroom software tailored for China’s
education market needs.
Technical Specifications
NOTE
: Offerings may vary by region. The following specifications are only those required by law to ship with your computer. For
more information about the configuration of your computer, go to Help and Support in your Windows operating system and
select the option to view information about your computer.
2
4 System Information
System specifications
Feature Specification
Processor type
• Intel Celeron
• 6th Generation Intel Core i3/i5/i7
• Intel PDC
Total cache Up to 8 MB cache depending on processor type
Memory specifications
Feature Specification
Type Up to 2133 MHz
Connectors Two DDR4 UDIMM slots
Capacity 2 GB, 4 GB, 8 GB, and 16 GB
Minimum Memory 2 GB
Maximum Memory 32 GB
Video specifications
Feature —
ChengMing
3967
Specification
Video Controller Integrated
iGPU
Video Controller Discrete
nVIDIA GeForce GT 710
AMD Radeon™ R5 430
Video Memory independent card offering
Audio specifications
Feature
Specification
Controller ALC3234-CG (Realtek)
Speaker single 4-ohms, AVG speakers
Internal speaker
amplifier
Codec Build-in Class D
System Information 5
Communication specifications
Feature Specification
Network adapter Realtek 10/100/1000 Mbps Ethernet LAN
Drives specifications
Feature Specification
Hard drive Two 2.5-inch SATA drive, one 3.5-inch SATA drive
Optical drive
(optional)
One DVD RW
Ports and connectors specifications
Feature Specification
Front port audio one universal audio jack
Front port USB 2.0 two
Front port USB 2.0 two
Rear port audio one audio line out
Rear port display one VGA, one HDMI
Rear port USB 2.0 two
Rear port USB 3.0 two
Rear port serial port one
Rear port PS/2 keyboard and mouse
Rear port RJ45 one
Power supply specifications
Feature
Specification
Type 290 W (UMA)
Frequency 47 Hz - 63 Hz
Voltage 90 VAC - 264 VAC
Input current 2.7 A / 5.4 A (290 W)
Physical Dimension
height
86.00 mm (3.38 inches)
Physical Dimension
weight
150.00 mm (5.90 inches)
6 System Information
Feature Specification
Physical Dimension
height
140.00 mm (5.51 inches)
Coin cell battery 3 V CR2032 lithium coin cell
Physical dimension specifications
Feature Specification
Width 160 mm (6.29 inches)
Height 373.7 mm (14.7 inches)
Depth 289.4 mm (11.39 inches)
Weight 6.5 kg (14.33 lbs)
Controls and lights specifications
Feature Specification
Power button light White light — Solid white light indicates power-on state; blinking white light indicates sleep state of the computer.
Hard Drive activity
light
White light — Blinking white light indicates that the computer is reading data from or writing data to the hard
drive.
Back panel:
Link integrity light on
integrated network
adapter :
Green — a good 10 Mbps connection exists between the network and the computer.
Orange — a good 1000 Mbps connection exists between the network and the computer.
Off (no light) — the computer is not detecting a physical connection to the network.
Network activity
light on integrated
network adapter
Yellow light — A blinking yellow light indicates that network activity is present.
Power supply
diagnostic light
Green light — The power supply is turned on and is functional. The power cable must be connected to the power
connector (at the back of the computer) and the electrical outlet.
Environmental specifications
Temperature
Specifications
Operating 0°C to 35°C (32°F to 95°F)
Storage –40°C to 65°C (–40°F to 149°F)
Relative humidity
(maximum)
Specifications
Operating 10 % to 90 % (non condensing)
Storage 5 % to 95 % (non condensing)
System Information 7
Maximum
vibration:
Specifications
Operating 0.66 GRMS
Storage 1.30 GRMS
Maximum shock: Specifications
Operating 110 G
Storage 160 G
Altitude
(maximum)
Specifications
Operating –15.2 m to 3048 m (–50 to 10,000 ft)
Storage –15.20 m to 10,668 m (–50 ft to 35,000 ft)
Airborne
contaminant level
G2 or lower as defined by ANSI/ISA-S71.04-1985
Critical callouts
Processor / Graphics configurations
The following table indicates the different processor/graphics configurations for ChengMing 3967.
Table 1. Processor / Graphics configurations
Processor / Graphics ChengMing 3967
CPU (Skylake) Intel Celeron, Pentium, or Core i3 / i5 / i7
1 GB Discrete Graphics OLGA 1GB
2 GB Discrete Graphics Nvidia GT710 Graphics Card
Other Graphics None
Hard drive / Optical drive configurations
The system board for ChengMing 3967 features three SATA connectors for storage devices, while the chassis for ChengMing 3967
features slots for one 3.5” hard drive, two 2.5” hard drives and one optical drive. Under these conditions the following SATA-based
storage device configurations are available for ChengMing 3967.
Table 2. Hard drive / Optical drive configurations
SATA Connections Configuration
1 3.5” HDD0
2 Optical drive + 3.5” HDD0
2 3.5” HDD0 + 2.5” HDD1
3 Optical drive + 3.5” HDD0 + 2.5” HDD1
3 3.5” HDD0 + 2.5” HDD1 + 2.5” HDD2
8 System Information
Hard drive power extension cable
Any additional hard drive configurations require the use of a 1-to-3 hard drive power extension cable.
Hard drive replacement
When replacing the hard drives for ChenMing 3967, the user must hold the hard drive securely while removing or securing the screws to
ensure that the hard drives do not fall and cause damage to either the system or the hard drive, as seen in the images below.
System Information
9
Figure 1. 3.5 inch hard drive
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System Information
Figure 2. 2.5 inch hard drive
Cable routing
The chassis for ChengMing 3967 features seven hooks/clips used to route the various data and power cables within the system. The
image and table below indicates which hook/clip the cables are routed through.
Figure 3. Cable routing
System Information
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Table 3. Cable routing
Cable Routing Path
3.5” HDD0 SATA Data Cable HDD0 → Cable Clip F → System Board
3.5” HDD0 P3 Power Cable (For models with only one hard
drive installed)
HDD0 → Cable Clip F → System Board
2.5” HDD1 SATA Data Cable HDD1 → Cable Clip F → System Board
2.5” HDD1 P7 Power Cable HDD1 → Cable Clip F → System Board
2.5” HDD2 SATA Data Cable (optional) HDD2 → Cable Clip F → System Board
2.5” HDD2 P6 Power Cable (optional) HDD2 → Cable Clip F → System Board
ODD SATA Data Cable ODD → Cable Hook A → Cable Clip C → System Board
ODD P4 Power Cable ODD → Cable Hook A → Cable Clip C → System Board
8-Pin Power Cable PSU → Cable Hook G → System Board
4-Pin Power Cable PSU → Cable Hook E → Cable Clip D → Cable Hook B → System Board
System board removal
When removing the system board for ChengMing 3967 from the system chassis the system board must be carefully pushed towards the
front IO port slots then carefully lifted up from the rear side, as indicated in the images below.
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System Information
Customer replaceable units (CRU) and Field
replaceable units (FRU) list
The following table shows CRU and FRU list:
Table 4. CRU/FRU List
Component CRU FRU
Slide Cover Yes No
Front Bezel Yes No
Memory module Yes No
Heat sink fan No Yes
3.5 Hard drive Yes No
2.5 Hard drive Yes No
Optical drive Yes No
Power combo cable No Yes
ODD SATA cable No Yes
System Information 13
Component CRU FRU
3.5 HDD SATA cable No Yes
2.5 HDD SATA cable No Yes
Expansion card Yes No
WLAN card Yes No
Coin cell battery Yes No
Power supply Yes No
System board No Yes
Speaker Yes No
14 System Information
Chassis
System front view
1 Optical drive 2 Power button and power status light
3 Hard drive activity light 4 Universal audio jack
5 USB 2.0 ports 6 USB 3.0 ports
3
Chassis 15
System back view
1 Power connector port 2 Power supply diagnostic button
3 USB 2.0 port with USB wake support 4 PS2 port for keyboard
5 VGA port 6 HDMI port
7 Line out port 8 Serial port
9 PS2 port for mouse 10 USB 3.0 ports (2)
11 Network port 12 Power diagnostic light
Service tag location
The Service Tag and Express Service Code for ChenMing3967 is located at the back of the computer.
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Chassis
Chassis 17
System board layout
The following image displays the system board layout of the computer.
1 CPU Power Connector (ATX_CPU) 2 Processor Socket (CPU)
3 CPU Fan Connector (FAN_CPU) 4 Memory Connectors (DIMM1/DIMM2)
5 SATA 1 connector (White color) 6 Battery Connector (BATTERY)
7 Internal Speaker Connector (INT_SPKR) 8 Password Clear Jumper (P1)
9 Service Mode Jumper (P3) 10 CMOS Clear Jumper (P2)
11 SATA 2 connector (Black color) 12 SATA 0 connector (Blue color)
13 HDD_ODD_PowerCable Connector (SATA_PWR) 14 Internal USB connector (WF_BT_USB)
15 ATX Power Connector (ATX_SYS) 16 PCI Connector (SLOT3 and SLOT4)
17 PCI-e X1 Connector (SLOT2) 18 PCI-e X16 Connector (SLOT1)
18 Chassis
Field Service Information
Working on your computer
Safety Precautions
The safety precautions chapter details the primary steps to be taken before performing any disassembly instructions.
Observe the following safety precautions before you perform any installation or break/fix procedures involving disassembly or reassembly:
• Turn off the system and all attached peripherals
• Disconnect the system and all attached peripherals from AC power, and then remove the battery
• Disconnect all network cables, telephone or telecommunications lines from the system
• Use a wrist grounding strap and mat when working inside any computer system to avoid electrostatic discharge (ESD) damage.
• After removing any system component, carefully place the removed component on an anti-static mat
• Wear shoes with nonconductive rubber soles to help reduce the chance of being shocked or seriously injured in an electrical accident
Standby power
Dell products with standby power must be completely unplugged before you open the case. Systems that incorporate standby power are
essentially powered while turned off. The internal power enables the system to be remotely turned on (wake on LAN) and suspended into
a sleep mode, and has other advanced power management features.
After unplugging the system and before removing components, wait approximately 30 to 45 seconds to allow the charge to drain from the
circuits. Remove the battery from portable computers.
Bonding
Bonding is a method for connecting two or more grounding conductors to the same electrical potential. This is done through the use of a
Field Service Electrostatic discharge (ESD) kit. When connecting a bonding wire, always ensure that it is connected to bare metal and
never to a painted or non-metal surface. The wrist strap should be secure and in full contact with your skin, and be sure to always remove
all jewelry such as watches, bracelets, or rings prior to bonding yourself and the equipment
Electrostatic discharge (ESD) protection
ESD is a major concern when you handle electronic components, especially sensitive components such as expansion cards, processors,
memory DIMMs, and system boards. Very slight charges can damage circuits in ways that may not be obvious, such as intermittent
problems or a shortened product life span. As the industry pushes for lower power requirements and increased density, ESD protection is
an increasing concern.
Due to the increased density of semiconductors used in recent Dell products, the sensitivity to static damage is now higher than in
previous Dell products. For this reason some previously approved methods of handling parts are no longer applicable.
Two recognized types of ESD damage are catastrophic and intermittent failures.
• Catastrophic – Catastrophic failures represent approximately 20 percent of ESD-related failures. The damage causes an immediate
and complete loss of device functionality. An example of catastrophic failure is a memory DIMM that has received a static shock and
immediately generates a "No POST/No Video" symptom with a beep code emitted for missing or nonfunctional memory
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Field Service Information 19
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