Advantech SKY-642 User manual

User Manual
SKY-642
4U Rackmount Intel® Xeon®
Scalable Series GPU Server,
Supporting 10 x PCIe
x16 Double-Deck Cards Plus 1 x
PCIe x16 and 1 x PCIe x8 Single-
Deck Cards

SKY-642 User Manual ii
Copyright
The documentation and the software included with this product are copyrighted 2019
by Advantech Co., Ltd. All rights are reserved. Advantech Co., Ltd. reserves the right
to make improvements in the products described in this manual at any time without
notice. No part of this manual may be reproduced, copied, translated or transmitted
in any form or by any means without the prior written permission of Advantech Co.,
Ltd. Information provided in this manual is intended to be accurate and reliable. How-
ever, Advantech Co., Ltd. assumes no responsibility for its use, nor for any infringe-
ments of the rights of third parties, which may result from its use.
Acknowledgements
Intel and Pentium are trademarks of Intel Corporation.
Microsoft Windows and MS-DOS are registered trademarks of Microsoft Corp.
All other product names or trademarks are properties of their respective owners.
Product Warranty (2 years)
Advantech warrants to you, the original purchaser, that each of its products will be
free from defects in materials and workmanship for two years from the date of pur-
chase.
This warranty does not apply to any products which have been repaired or altered by
persons other than repair personnel authorized by Advantech, or which have been
subject to misuse, abuse, accident or improper installation. Advantech assumes no
liability under the terms of this warranty as a consequence of such events.
Because of Advantech’s high quality-control standards and rigorous testing, most of
our customers never need to use our repair service. If an Advantech product is defec-
tive, it will be repaired or replaced at no charge during the warranty period. For out-
of-warranty repairs, you will be billed according to the cost of replacement materials,
service time and freight. Please consult your dealer for more details.
If you think you have a defective product, follow these steps:
1. Collect all the information about the problem encountered. (For example, CPU
speed, Advantech products used, other hardware and software used, etc.) Note
anything abnormal and list any onscreen messages you get when the problem
occurs.
2. Call your dealer and describe the problem. Please have your manual, product,
and any helpful information readily available.
3. If your product is diagnosed as defective, obtain an RMA (return merchandize
authorization) number from your dealer. This allows us to process your return
more quickly.
4. Carefully pack the defective product, a fully-completed Repair and Replacement
Order Card and a photocopy proof of purchase date (such as your sales receipt)
in a shippable container. A product returned without proof of the purchase date
is not eligible for warranty service.
5. Write the RMA number visibly on the outside of the package and ship it prepaid
to your dealer.
Part No. 2001642000 Edition 1
Printed in Taiwan May 2019

iii SKY-642 User Manual
A Message to the Customer
Advantech Customer Services
Each and every Advantech product is built to the most exacting specifications to
ensure reliable performance in the harsh and demanding conditions typical of indus-
trial environments. Whether your new Advantech equipment is destined for the labo-
ratory or the factory floor, you can be assured that your product will provide the
reliability and ease of operation for which the name Advantech has come to be
known.
Your satisfaction is our primary concern. Here is a guide to Advantech’s customer
services. To ensure you get the full benefit of our services, please follow the instruc-
tions below carefully.
Technical Support
We want you to get the maximum performance from your products. So if you run into
technical difficulties, we are here to help. For the most frequently asked questions,
you can easily find answers in your product documentation. These answers are nor-
mally a lot more detailed than the ones we can give over the phone.
So please consult this manual first. If you still cannot find the answer, gather all the
information or questions that apply to your problem, and with the product close at
hand, call your dealer. Our dealers are well trained and ready to give you the support
you need to get the most from your Advantech products. In fact, most problems
reported are minor and are easily solved over the phone.
In addition, free technical support is available from Advantech engineers every busi-
ness day. We are always ready to give advice on application requirements or specific
information on the installation and operation of any of our products.
Declaration of Conformity
FCC Class A
Note: This equipment has been tested and found to comply with the limits for a Class
A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Opera-
tion of this equipment in a residential area is likely to cause harmful interference in
which case the user will be required to correct the interference at his own expense.

SKY-642 User Manual iv
Safety Information
Retain and follow all product safety and operating instructions provided with your
equipment. In the event of a conflict between the instructions in this guide and the
instructions in equipment documentation, follow the guidelines in the equipment doc-
umentation.
Observe all warnings on the product and in the operating instructions. To reduce the
risk of bodily injury, electric shock, fire and damage to the equipment, observe all pre-
cautions included in this guide.
You must become familiar with the safety information in this guide before you install,
operate, or service Advantech products.
Machine Room Environment
Make sure that the area in which you install the system is properly ventilated
and climate-controlled.
Ensure that the voltage and frequency of your power source match the voltage
and frequency inscribed on the electrical rating label of the equipment.
Do not install the system in or near a plenum, air duct, radiator, or heat register.
Never use the product in a wet location.
Equipment Chassis
Do not block or cover the openings to the system.
Never push objects of any kind through openings in the equipment.
Dangerous voltages might be present.
Conductive foreign objects can produce a short circuit and cause fire, electric
shock, or damage to your equipment.
Lift equipment using both hands and with your knees bent.
Rack Mount Instructions
The following or similar rack-mount instructions are included with the installation
instructions:
Elevated Operating Ambient - If installed in a closed or multi-unit rack assembly,
the operating ambient temperature of the rack environment may be greater than
room ambient. Therefore, consideration should be given to installing the equip-
ment in an environment compatible with the maximum ambient temperature
(Tma) specified by the manufacturer.
Reduced Air Flow - Installation of the equipment in a rack should be such that
the amount of air flow required for safe operation of the equipment is not com-
promised.
Mechanical Loading - Mounting of the equipment in the rack should be such that
a hazardous condition is not achieved due to uneven mechanical loading.
Circuit Overloading - Consideration should be given to the connection of the
equipment to the supply circuit and the effect that overloading of the circuits
might have on over current protection and supply wiring.
Appropriate consideration of equipment nameplate ratings should be used when
addressing this concern.
Reliable Earthing - Reliable earthing of rackmounted equipment should be
maintained. Particular attention should be given to supply connections other
than direct connections to the branch circuit (e.g. use of power strips).

v SKY-642 User Manual
Make sure only one component is extended at a time. A rack might become
unstable if more than one component is extended.
Equipment Batteries*
The system battery contains lithium manganese dioxide. If the battery pack is
not handled properly, there is risk of fire and burns.
Do not disassemble, crush, puncture, short external contacts, or dispose of the
battery in fire or water.
Do not expose the battery to temperatures higher than 60°C (140°F).
The system battery is not replaceable. If the battery is replaced by an incorrect
type, there is danger of explosion. Replace the battery only with a spare desig-
nated for your product.
Do not attempt to recharge the battery.
Dispose of used batteries according to the instructions of the manufacturer.
Do not dispose of batteries with the general household waste. To forward them
to recycling or proper disposal, use the public collection system or return them
to Advantech, your authorized Advantech partner, or their agents.
Equipment Modifications
Do not make mechanical modifications to the system. Advantech is not respon-
sible for the regulatory compliance of Advantech equipment that has been mod-
ified.
Equipment Repairs and Servicing
The installation of internal options and routine maintenance and service of this
product should be performed by individuals who are knowledgeable about the
procedures, precautions, and hazards associated with equipment containing
hazardous energy levels.
Do not exceed the level of repair specified in the procedures in the product doc-
umentation. Improper repairs can create a safety hazard.
Allow the product to cool before removing covers and touching internal compo-
nents.
Remove all watches, rings, or loose jewelry when working before removing cov-
ers and touching internal components.
Do not use conductive tools that could bridge live parts.
Use gloves when you remove or replace system components; they can become
hot to the touch.
–If the product sustains damage requiring service, disconnect the product from
the AC electrical outlet and refer servicing to an authorized service provider.
Examples of damage requiring service include:
–The power cord, extension cord, or plug has been damaged.
–Liquid has been spilled on the product or an object has fallen into the product.
–The product has been exposed to rain or water.
–The product has been dropped or damaged.
–The product does not operate normally when you follow the operating instruc-
tions.

SKY-642 User Manual vi
Peripheral Compatibility
Note! Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by the
manufacture. Discard used batteries according to the manufacture's
instructions.
Danger d'explosion si la batterie est remplacée de façon incorrecte.
Remplacez-la uniquement avec le même type ou équivalent recom-
mandé par la fabrication. Jetez les piles usagées selon les instructions
du fabricant.
Category Advantech PN Vendor Part Description Remarks
CPU
TBD Intel Xeon Bronze 3104/1.70GHz/
8.25M/6Cores 85W
96MPXE-1.7-11M36 Intel Xeon Bronze 3106/1.70GHz/
11M/8Cores 85W
TBD Intel Xeon Silver 4108/1.80GHz/11M/
8Cores 85W
96MPXE-2.0-11M36 Intel Xeon Silver 4109T/2.0GHz/11M/
8Cores 70W
96MPXE-2.1-11M36 Intel Xeon Silver 4110/2.1GHz/11M/
8Cores 85W
TBD Intel Xeon Silver 4112/2.6GHz/8.25M/
4Cores 85W
TBD Intel Xeon Silver 4114/2.2GHz/
13.75M/10Cores 85W
96MPXE-2.1-16M36 Intel Xeon Silver 4116/2.1GHz/16.5M/
12Cores 85W
TBD Intel Xeon Gold 5115/2.4GHz/
13.75M/10Cores 85W
96MPXE-2.3-16M36 Intel Xeon Gold 5118/2.3GHz/16.5M/
12Cores 105W
TBD Intel Xeon Gold 5120/2.2GHz/
19.25M/14Cores 105W
96MPXE-2.2-19M36 Intel Xeon Gold 5120T/2.2GHz/
19.25M/14Cores 105W
TBD Intel Xeon Gold 6136 CPU @ 3.00
GHz/24.75M/12Cores 150W
TBD Intel Xeon Gold 6140/2.3GHz/
24.75M/18Cores 140W
TBD Intel Xeon Gold 6142/2.60 GHz/22M/
16Cores 150W
TBD Intel Xeon Gold 6142M/2.6GHz/22M/
16Cores 150W
TBD Intel Xeon Platinum 8158/24.75M/
12cores 150W
TBD Intel Xeon Platinum 8160M/33M/
24cores 150W

vii SKY-642 User Manual
Memory
AQD-D4U4GR24-HG ADATA 4G DDR4-2400 RDIMM REG
AQD-D4U8GR24-HE ADATA 8G DDR4-2400 RDIMM REG
AQD-D4U16R24-HE ADATA 16G DDR4-2400 RDIMM REG
SQR-RD4M-
32G2K4SRB Advantech 32G DDR4-2400 RDIMM REG
SQR-
RD4N8G2K4SZBBB Advantech 8G DDR4-2400 RDIMM REG
SQR-
RD4N8G2K6SZBCB Advantech 8G DDR4-2666 RDIMM REG- ECC
SQR-
RD4N32G2K6SRCB Advantech 32G DDR4-2666 RDIMM REG- ECC
A4B08QD8BNTDSE ATP 8G DDR4-2666 RDIMM REG-
ECC
A4B16QE8BNTDSE ATP 16G DDR4-2666 RDIMM REG-
ECC
A4B32QB4BNTDSE ATP 32G DDR4-2666 RDIMM REG-
ECC
SATA
HDD
96HD4TB-ST-
SG7KE1 Seagate 3.5" SATA HDD 4TB ST4000N M0035
96HD8TB-ST-SG7KE Seagate 3.5" SATA HDD 8TB ST8000N
M0055
96HD2TB-ST-
WD7KE2 WD 3.5" SATA HDD 2TB
HUS722
T2TALA6
04
96HD6TB-ST-
WD7KE2 WD 3.5" SATA HDD 6TB
HUS726
T6TALE6
L4
96HD8TB-ST-
WD7KE2 WD 3.5" SATA HDD 8TB
HUS728
T8TALE6
L4
TBD Toshiba 3.5" HDD 4TB NG04AC
A400E
TBD Toshiba 3.5" HDD 10TB MG06AC
A10TE
TBD Toshiba 3.5" HDD 14TB MG07AC
A14TE
TBD Transcend 2.5" SSD 720
MLC
TS128G
SSD720
MLC
SQF-S25M8-64G-
S8C Advantech 2.5" SSD 64GB
SQF
Flash
64GB
CPU
Heatsink 1960081155N101 CoolJag Heatsink I-Skylake-EP S-165W 107.75x78.0x25.5-SC
Power
supply
96PSRM-
A1K6WCRP FSP 1600W CRPS Module

SKY-642 User Manual viii
M.2
SATA
PCIe
SQF-CM8V2-128G-
E8C Advantech SQF M.2 2280 710 128G
3D NAND
BiCS3
(0~70°C
)PCIe
Interface
SQF-SM8M8-128G-
SAC Advantech SQF M2 2280 830 128G
MLC
(0~70°C
)SATA3
Interface
SQF-SM8M1-32G-
SBC Advantech SQF M.2 2280 640 32G
MLC
(0~70°C
)SATA3
Interfce
GPU
Card
SKY-TESL-V100-32P NVidia Tesla V100 32GB PCI-E x
16 HS
SKY-TESL-V100-P NVidia Tesla V100 16GB PCI-E x
16 HS
SKY-TESL-P40-PE NVidia Tesla P40 24GB PCI-E
x16 HS
SKY-TESL-P100-PE NVidia Tesla P100 12GB PCI-E
x16 HS
RAID
Card
TBD LSI MR SAS 9361-4i PCIe x8
TBD LSI MR SAS 9380-4i4e PCIe x8
TBD LSI MR SAS 9340-8i PCIe x8
96RC-SAS-8P-PE-AD4 Adaptec ASR-8805 PCIe x8
TBD Adaptec Adaptec HBA 3102-8i PCIe x8
TBD Adaptec Adaptec HBA 3154-8i PCIe x8
Cable
96CB-MSASH-
MSASH-1 Adaptec CABLE HD MINI-SAS TO HD MINI-SAS 1M
RAID
card
cable out
at top
side
1700025065-01 Advantech M cable SAS 36P/SAS 36P
85cm
RAID
card
cable out
at rear
side
LAN Card
TBD Intel XXV710-DA2
TBD Intel XXV710-DA1
TBD Intel XL710-QDA2
TBD Intel XL710-QA2
96NIC-1G2P-PE-IN3 Intel I350-T2

ix SKY-642 User Manual
Initial Inspection
Before powering up the system, please make sure that the following materials have
been shipped:
1 x SKY-642 system
1 x SKY-642 Startup Manual
10 x GPU extend bracket
2 x CPU heatsink with clip
7 x GPU air block for PCIE without add on cards
2 x Mounting ears with handles
1 x Warranty card
If any of these items are missing or damaged, contact distributor or sales representa-
tive immediately. We have carefully inspected the SKY-642 mechanically and electri-
cally before shipment. It should be free of marks and scratches and in perfect
working order upon receipt. When unpacking the SKY-642, check it for signs of ship-
ping damage. (For example, damaged box, scratches, dents, etc.) If it is damaged or
it fails to meet the specifications, notify our service department or local sales repre-
sentative immediately. Also notify the carrier. Retain the shipping carton and packing
material for inspection by the carrier. After inspection, we will make arrangements to
repair or replace the unit.
Order Information
Part number Expansion slot Lan port IPMI
SKY-6420-R48A1 11*PCIe x16 + 1 x PCIe x8 2 Yes

SKY-642 User Manual x

xi SKY-642 User Manual
Contents
Chapter 1 Overview...............................................1
1.1 Introduction ............................................................................................... 2
1.2 Features .................................................................................................... 2
1.3 System Specifications ............................................................................... 3
1.4 System Layout, LED, Jumpers and Connectors ....................................... 5
1.4.1 LED Definitions ............................................................................. 6
Table 1.1: Onboard LAN LED Color Definition ............................ 7
1.4.2 Jumpers ........................................................................................ 7
Figure 1.1 JCMOS location.......................................................... 8
1.4.3 Connectors.................................................................................... 8
1.5 Block Diagram........................................................................................... 9
1.6 System Memory ........................................................................................ 9
1.7 Memory Installation Procedures.............................................................. 10
Table 1.2: DIMM Population Recommendations with single CPU.
10
Chapter 2 Setting up ...........................................11
2.1 Before you Begin..................................................................................... 12
2.1.1 Work Area ................................................................................... 12
2.1.2 Tools ........................................................................................... 12
2.1.3 Precautions ................................................................................. 12
2.2 Installing Motherboard Components ....................................................... 13
2.2.1 Removing the Chassis Cover and CPU Duct ............................. 13
2.2.2 Installing the CPU and Heatsink ................................................. 14
2.2.3 Installing the Memory.................................................................. 17
2.2.4 Installing Hard Drives.................................................................. 19
2.2.5 Instruction for Expansion Board.................................................. 20
2.2.6 Instruction for optional external fan module ................................ 21
2.3 Rack Mounting ........................................................................................ 22
2.3.1 Installing the Server in a Rack .................................................... 22
Chapter 3 AMI BIOS ............................................29
3.1 Introduction ............................................................................................. 30
3.2 BIOS Setup ............................................................................................. 31
3.2.1 Main Menu .................................................................................. 31
3.2.2 Advanced BIOS Features Setup................................................. 32
3.2.3 Platform Configuration ................................................................ 45
3.2.4 Socket Configuration................................................................... 50
3.2.5 Server Management ................................................................... 63
3.2.6 Security ....................................................................................... 67
3.2.7 Boot............................................................................................. 67
3.2.8 Save & Exit ................................................................................. 68
Chapter 4 Chipset Software Installation Utility 69
4.1 Before You Begin .................................................................................... 70
4.2 Introduction ............................................................................................. 70
4.3 Windows OS Driver Setup ...................................................................... 71

SKY-642 User Manual xii
Chapter 5 VGA Setup ......................................... 73
5.1 Introduction ............................................................................................. 74
5.2 Windows Series Driver Setup ................................................................. 74
Chapter 6 LAN Configuration / SATA RAID &
AHCI / USB 3.0 Setup75
6.1 LAN Configuration................................................................................... 76
6.1.1 Introduction ................................................................................. 76
6.1.2 Features...................................................................................... 76
6.1.3 Installation................................................................................... 76
6.1.4 Windows Series Driver Setup (LAN)........................................... 76
6.2 AHCI & SATA RAID ................................................................................ 77
6.2.1 Introduction ................................................................................. 77
6.2.2 Windows Series Driver Setup ..................................................... 77
6.3 USB3.0.................................................................................................... 78
6.3.1 Introduction ................................................................................. 78
6.3.2 Windows Series Driver Setup ..................................................... 78
Appendix A Programming the Watchdog Timer .79
A.1 Watchdog Timer Overview...................................................................... 80
A.2 Programming the Watchdog Timer ......................................................... 80
Appendix B On Board DIP Switch Setting for PCI
Express Driving83
B.1 U1 - PEX8796 ......................................................................................... 84
B.2 U2 - PEX8796 ......................................................................................... 84
B.3 PCIE SLOT6 ........................................................................................... 84
B.4 PCIE SLOT7 ........................................................................................... 85
Appendix C OEM Command for BMC IPMI tool .87
C.1 Advantech OEM Commands .................................................................. 88
C.1.1 BMC Lock/Unclock Command.................................................... 88
C.1.2 SYS LED Control Command ...................................................... 88
C.1.3 GPU Power Brake Command..................................................... 89

Chapter 1
1Overview

SKY-642 User Manual 2
1.1 Introduction
The SKY-642 is a high performance Intel Xeon scalable processor system for GPU
applications that require high computing power & multi-expansion slots in a 4U sys-
tem. This system supports dual Intel Xeon scalable processors and DDR4 ECC-REG
2133/2400/2666 MHz memory/ Intel Optane DC Persistent Memory up to 6TB.
SKY-642 provides 12 x PCIe x16 slots (11 in x16 link, 1 in x8 link).
In addition, SKY-642 provides dual 10GbE Ethernet, eliminating network, also one
dedicate LAN port for IPMI function to allow remote control.
High reliability and outstanding performance makes SKY-642 the ideal platform for
industrial server applications.
SKY-642 uses the Intel C622 chipset and offers a variety of features such as 12 x
SATA/SAS hot swappable bays, SAS optional by RAID card, Intel RSTe (Rapid Stor-
age Technology Enterprise), RAID 0, 1, 5, 10 (Windows only*), 1 x 2280 connector (B
+ M Key) for OS installation and cache, 7 x USB 3.0 (4 x in rear, 1 x internal Type A
Connector, and 2 x at front).
These powerful I/O capabilities ensure reliable data storage capabilities and high-
speed I/O peripheral connectivity.
1.2 Features
General
Intel Xeon Scalable Family processor support: SKY-642 supports two Intel Scal-
able Family series multi-core (up to twenty cores) processors.
High performance I/O capability: Dual 10GbE LAN, 12 x PCIe x16 slots (11 in
x16 link, 1 in x8 link), 12 x SATA/SAS hot swappable bays, SAS optional by
RAID card, 1 x SATA M.2 2280 connector (B + M Key), 7 x USB 3.0 ports.
Proprietary form factor with industrial features: SKY-642 provides industrial fea-
tures like long product lifecycle, reliable operation, watchdog timer, etc.
IPMI 2.0 support: SKY-642 equipped with ASPEED 2500 BMC chip supports
IPMI 2.0 (Intelligent Platform Management Interface 2.0) via share and dedicate
LAN port.
KVM over IP: SKY-642 KVM over IP function allows remote control of your sys-
tem through your own computer.
Note! 1. 10 of the PCIe x16 slots support FHFL double deck GPU card, one
PCIe x 16 from CPU1 supports FHFL single deck add on cards like
RAID cards.
2. Please refer to the release notes of each Linux OS for Intel's C622
chipset SATA RAID function support.

3 SKY-642 User Manual
Chapter 1 Overview
1.3 System Specifications
Processor
CPU
Dual Intel LGA3647 Xeon processor sockets
Supports Intel Xeon Scalable Family processor
Supports the processor TDP up to 150 W.
System Memory
Memory Capacity
Intel Xeon processor supports DDR4 memory bus
Total 24 x 288-pin memory slots provided
Supports total capacity up to 6TB
6 x channels per processor, 2 x memory slots per channel
Memory Type Supports DDR4 2133/2400/2666 MHz ECC Registered Mod-
ules/Intel Optane DC Persistent Memory
Memory Sizes Each memory slot supports 4GB, 8GB, 16GB, 32GB and 64GB mem-
ory modules
Memory Voltage 1.2 V
Error Detection Corrects single-bit errors
Detects double-bit errors (using ECC memory)
On-board Devices
Chipsets Intel C622 PCH provide 8 PCIe x1 Gen2 lanes
Network Controllers Intel X557-T for LAN1/2 10 GbE
Above network Supports1/10 GbE Base-T, with RJ-45 output
VGA ASPEED AST2500 controller with 64 MB VGA memory provides
basic 2D VGA function.
EC ITE 8528E chip provides motherboard,
RS-232, and hardware monitor functions.
BMC Sharing with LAN 1 + 1 dedicate NIC for IPMI.
Input / Output
Storage Total 12 x 2.5"/3.5" HDD bays, all support 6 Gb/s bandwidth
RAID 0, 1, 5, 10 support (Windows only).
LAN 3 x RJ-45 LAN ports 2 x 10GbE + 1 x dedicate IPMI LAN)
USB
4 x USB 3.0 ports at rear window.
2 x USB 3.0 ports at front window.
1 x internal Type-A USB 3.0 port.
VGA 1 x D-Sub port
Serial Port / Header 2 x Internal header (2 x 5 pin, 2.0 mm pitch) for UART port.
Power Supply
Power
80 PLUS Platinum 3+1 4800W redundant power supply, for each
power unit
1000 W @ 100 ~ 127 V
1600 W @ 200 ~ 240 V
Power Connector
Expansion
Card power
10 x CPU-8P 12V power connector for expansion card.
Cable optional, depends on the expansion card type.
Expansion Slots

SKY-642 User Manual 4
PCI-express
11 x PCI-E x16 slot (Gen3 x16 link)
–Slot 1~ Slot 5 from U1_PLX8796 from CPU0
–Slot 6 from CPU1
–Slot 8~ Slot 12 from U2_PLX8796 from CPU0
1 x PCI-E x16 slot (Gen3 x8 link)
–Slot 7 from CPU0
System BIOS
BIOS type 128 Mb SPI Flash EEPROM with AMI BIOS
PC Health Monitoring
Voltage Monitors for CPU Cores, +3.3 V, +5 V, +12 V, +5 V Standby, VBAT
Fan
Six 120X38 fan for CPU/GPU cooling.
Four 80X38 fan for expansion card cooling (optional at rear win-
dow).
SYSFAN0-SYSFAN7 with tachometer status monitoring
Temperature Monitoring for CPU0 & CPU1 (PECI)
Monitoring for System (HWM)
Other Features
(Case Open)
Chassis intrusion detection
Chassis Intrusion header
Operating Environment / Compliance
RoHS RoHS Compliant
Environmental Spec.
Operating Temperature: 0 to 35° C
Non-operating Temperature: -40 to 60° C
Operating Relative Humidity: 95% @ 40° C (non-condensing)
Non-operating Relative Humidity: 95% @ 60° C (non-condens-
ing)

5 SKY-642 User Manual
Chapter 1 Overview
1.4 System Layout, LED, Jumpers and Connectors
Connectors on the SKY-642 are linked to external devices such as hard disk drives.
In addition, SKY-642 has a jumper that are used to clean CMOS for BIOS. The tables
below list the functions of each jumper and connector. Later sections in this chapter
give instructions for setting jumpers. Chapter 2 gives instructions for connecting
external devices to SKY-642.
System top view
Front IO view
6 x Internal System FAN
CPU air duct
for optimized
air flow
Chassis
support
12 * 3.5” HDD
2 * USB3.0
10 x PCIe x16
for double deck
GPU cards
External
FAN Module (R)
External
FAN Module (L)
Internal Rear FAN
Internal Front FAN
2 x USB 3.0 12 x 3.5” SAS/SATA HDD bay
Power / Reset / Mute Button LAN / HDD / Power /
Information LED

SKY-642 User Manual 6
Rear IO View
1.4.1 LED Definitions
Front l/O LED
*The causes of hardware monitoring failure can be over temperature, fan failure, over
voltage, case intrusion etc. Please check BMC web UI for more information.
**Location function is used to locate the server on a rack from remote location.
HDD LED
* Fail, Identify, Rebuild, Hot-spare only work under RAID mode.
VGA
LAN1 (10G, top) /
LAN2 (10G, bottom)
1 x Dedicate IPMI LAN
4 x USB 3.0
3+1 4800W
Redundant Power
module
10 x PCIe x16 for
double deck GPU
cards
1 x PCIe x16 from
CPU1
LED State Color Description
Power LED
On Green System is turned on
Blinking Green System is under S4 state
Off Off Power off
LAN1 ~ LAN2 LED
Blinking Green LAN active
On Green LAN linked
Off Off LAN unlinked
Information LED On Red Hardware monitor fail*; Location function**
Off Off No failure
HDD status Status LED
Color: Amber
Activity LED
Color: Green
No driver present or power disconnected Off Off
Driver present No activity Off On
Access activity Off Blinking
HDD fail* On -
Identify (locate the HDD)* 4 Hz Blinking 4 Hz
SATA/SAS RAID rebuild* 1 Hz Blinking -
Hot-spare* Off -

7 SKY-642 User Manual
Chapter 1 Overview
On-Board LED
Rear I/O LED (1)
Rear I/O LED(2)
1.4.2 Jumpers
LED State Color Description
5V LED1 On Green System power on
Off Off Power off
5VSB LED1 On Green System power on, in sleep mode or in soft-
off mode
Off Off No AC power input
BMC LED1 Blinking Green BMC controller is working normally
Table 1.1: Onboard LAN LED Color Definition
1G & 10G bps LAN Link/Activity LED Scheme
LAN1 & LAN2 (10G)
Left LED Right LED
1G Mbps Link
Active
Amber
Amber
Green
Blinking green
10G Mbps Link
Active
Green
Green
Green
Blinking green
No Link Off Off
Power module LED
Blinking Amber No AC power to this module while other PSU with
AC input
1Hz
Blinking Green AC present standby output on
1Hz
Blinking Amber
Power supply warning events where the power
supply continues to operate; high temp, high power,
high current, slow fan
On Amber Power supply critical event causing a shutdown;
failure, OCP, OVP, fan fail
On Green Power supply DC output ON and OK
Off Off No AC power to all power modules
Label Function Default
JCMOS1 CMOS clear 1-2
JME1 ME update 1-2
1
1
Keep CMOS data / Disable ME update Clear CMOS data / Enable ME update

SKY-642 User Manual 8
Figure 1.1 JCMOS location
1.4.3 Connectors
CPU0 Intel LGA3647 CPU0 socket
CPU1 Intel LGA3647 CPU1 socket
SYS FAN0 ~ SYS FAN9 System fan connector (8-pin)
DIMMA1,
DIMMA2,DIMMB1,
DIMMB2,DIMMC1,
DIMMC2,DIMMD1,
DIMMD2,DIMME1,
DIMME2,DIMMF1,
DIMMF2,
DIMM channel of CPU0
DIMMG1,
DIMMG2,DIMMH1,
DIMMH2,DIMMI1,
DIMMI2,DIMMJ1,
DIMMJ2,DIMMK1,
DIMMK2,DIMML1,
DIMML2,
DIMM channel of CPU1
GPU_CN1~GPU_CN10 12V power output connector for expansion card (CPU-8P)
SATA_CON1 SFF-8643 connector for SATA0~SATA3
SATA_CON2 SFF-8643 connector for SATA4~SATA7
sSATA_CON1 SFF-8643 connector for sSATA0~sSATA3
M.2_2280_1 M.2 2280 connector (B+M key) for SATA and PCIEX2
RISER_SLOT1 ~
RISER_SLOT4 High density connector for riser card to expansion board
PCIEX16_1 ~ PCIEX16_5 PCIe x16 slot (gen3 x16 link) from CPU0 through U1_PLX8796
PCIEX16_8 ~ PCIEX16_12 PCIe x16 slot (gen3 x16 link) from CPU0 through U2_PLX8796
PCIEX16 SLOT6 PCIe x16 slot (gen3 x16 link) from CPU1
PCIEX16 SLOT7 PCIe x16 slot (gen3 x8 link) from CPU0
LPC1 LPC port for debug & TPM module
COM1 ~ COM2 Serial port : RS-232
SMBUS1 For HDD status monitoring
BP P1 ~ P3 5V power output connector for HDD back plane
LAN3_USB1_2, USB3_4 USB port 1, 2, 3, 4 (rear USB3.0)
USB7 USB port 7 (internal type-A, horizontal)
USB5_6 USB port 5, 6 (front panel USB3.0)