Advantech ACP-4320 User manual

User Manual
ACP-4320
4U Industrial Chassis with Dual
Front-accessible
SAS/SATA HDD Trays

ACP-4320 User Manual ii
Copyright
The documentation and the software included with this product are copyrighted 2009
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
ACP-4320, PCA-6113P4R, PCA-6113P7X, PCA-6114, PCA-6114P4, PCA-6114P7,
PCA-6114P10, PCA-6114P12, PCA-6114P12X, PCA-6115, PCE-7B13, PCE-7B13D,
PCE-5B12, PCE-5B13, AIMB-766, AIMB-764, AIMB-763, AIMB-762, AIMB-760,
AIMB-750, AIMB-744 and AIMB-742 are all trademarks of Advantech Co., Ltd.
All other product names or trademarks are the properties of their respective owners.
On-line Technical Support
For technical support and service, please visit our support website at:
http://www.advantech.com/support
Part No. 2002432002 Edition 3
Printed in China May 2009

iii ACP-4320 User Manual
Safety Instructions
1. Read these safety instructions carefully.
2. Keep this user manual for later reference.
3. Disconnect this equipment from AC outlet before cleaning. Do not use liquid or
spray detergents for cleaning.
4. For pluggable equipment, the power outlet shall be installed near the equipment
and shall be easily accessible.
5. Keep this equipment away from humidity.
6. Put this equipment on a reliable surface during installation. Dropping it or letting
it fall could cause damage.
7. Do not leave this equipment in an environment unconditioned where the storage
temperature under 0ºC (32ºF) or above 40ºC (104ºF), it may damage the
equipment.
8. The openings on the enclosure are for air convection hence protect the equip-
ment from overheating. DO NOT COVER THE OPENINGS.
9. Make sure the voltage of the power source is correct before connecting the
equipment to the power outlet.
10. Place the power cord in a way that people can not step on it. Do not place any-
thing over the power cord. The voltage and current rating of the cord should be
greater than the voltage and current rating marked on the product.
11. All cautions and warnings on the equipment should be noted.
12. If the equipment is not used for a long time, disconnect it from the power source
to avoid being damaged by transient over-voltage.
13. Never pour any liquid into ventilation openings. This could cause fire or electri-
cal shock.
14. Never open the equipment. For safety reasons, the equipment should be
opened only by qualified service personnel.
15. If any of the following situations arises, get the equipment checked by service
personnel:
a. The power cord or plug is damaged.
b. Liquid has penetrated into the equipment.
c. The equipment has been exposed to moisture.
d. The equipment does not work well, or you cannot get it to work according to
the installation reference guide.
e. The equipment has been dropped and damaged.
f. The equipment has obvious signs of breakage.
16. CAUTION: The computer is provided with a battery-powered real-time clock cir-
cuit. There is a danger of explosion if battery is incorrectly replaced. Replace
only with same or equivalent type recommended by the manufacturer. Discard
used batteries according to the manufacturer's instructions.
17. THE COMPUTER IS PROVIDED WITH CD DRIVES COMPLY WITH APPRO-
PRIATE SAFETY STANDARDS INCLUDING IEC 60825.
18. This device complies with Part 15 of the FCC rules. Operation is subject to the
following two conditions:
(1). this device may not cause harmful interference, and
CLASS I LASER PRODUCT
KLASS I LASER PRODUKT

ACP-4320 User Manual iv
(2). this device must accept any interference received, including interference
that may cause undesired operation.
19. CAUTION: Always completely disconnect the power cord from your chassis
whenever you work with the hardware. Do not make connections while the
power is on. Sensitive electronic components can be damaged by sudden
power surges.
20. CAUTION: Always ground yourself to remove any static charge before touching
the motherboard, backplane, or add-on cards. Modern electronic devices are
very sensitive to static electric charges. As a safety precaution, use a grounding
wrist strap at all times. Place all electronic components on a static-dissipative
surface or in a static-shielded bag when they are not in the chassis.
21. CAUTION: Any unverified component could cause unexpected damage. To
ensure the correct installation, please always use the components (ex. screws)
provided with the accessory box.
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 cus-
tomer services.
To ensure you get the full benefit of our services, please follow the instructions below
carefully.
Technical Support
We want you to get the best performance possible from your products. 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.
Please consult this manual first. If you still cannot find the answer, gather all the infor-
mation 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 can be 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 about application requirements or spe-
cific information on the installation and operation of any of our products.

v ACP-4320 User Manual
Product Warranty
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.
If an Advantech product is defective, it will be repaired or replaced at no charge dur-
ing 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, type of
PC, CPU speed, Advantech products used, other hardware and software used,
etc. Note anything abnormal and list any on-screen 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 material autho-
rization) 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.
Initial Inspection
When you open the carton, please make sure that the following materials have been
shipped:
!ACP-4320 Chassis
!User Manual
!Warranty Card
!Accessory box with a package of screws (for fastening the motherboard, optical
disk drive, other disk drives, ears and handles, etc.), a pair of keys, 1 piece of
EMI spring shielding (for backplane version), 15 pieces rubber cushions (back-
plane version) or 7 pieces (motherboard version), and a pair of ears and han-
dles.
If any of these items are missing or damaged, contact your distributor or sales repre-
sentative immediately. We have carefully inspected the product mechanically and
electrically before shipment. It should be free of marks and scratches and in perfect
working order upon receipt. As you unpack the ACP-4320, 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 your local sales
representative immediately. Also, please 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.

ACP-4320 User Manual vi

vii ACP-4320 User Manual
Contents
Chapter 1 General Information ............................1
1.1 Introduction ............................................................................................... 2
1.2 Specifications ............................................................................................ 2
1.3 Power Supply Options............................................................................... 3
1.3.1 300W ATX power supply with PFC (PS-300ATX-ZBE) ................ 3
Table 1.1: 300W ATX power supply with PFC
(PS-300ATX-ZBE) ...................................................... 3
1.3.2 400W ATX power supply with PFC
(PS-400ATX-ZBE) ........................................................................ 3
Table 1.2: 400W ATX power supply with PFC
(PS-400ATX-ZBE) ...................................................... 3
1.3.3 300W ATX redundant power supply (RPS-300ATX-ZE) .............. 3
Table 1.3: 300W ATX redundant power supply
(RPS-300ATX-ZE)...................................................... 3
1.3.4 400W ATX redundant power supply (RPS-400ATX-ZE) .............. 3
Table 1.4: 400W ATX redundant power supply
(RPS-400ATX-ZE)...................................................... 3
1.4 Environment Specifications....................................................................... 4
Table 1.5: Environment specifications......................................... 4
1.5 Dimension Diagram................................................................................... 4
Figure 1.1 Diagram diagram........................................................ 4
Chapter 2 System Setup.......................................5
2.1 Removing the Top Cover .......................................................................... 6
Figure 2.1 Removing the top cover............................................. 6
2.2 Installing the Backplane or Motherboard................................................... 6
Table 2.1: Yellow label indicating copper stub locations ............. 7
Figure 2.2 Installing a backplane ................................................. 8
Figure 2.3 Installing a motherboard............................................. 8
2.3 Installing CPU card or Add-on Card.......................................................... 8
2.3.1 Installing the CPU Card ................................................................ 8
Figure 2.4 Installing a CPU card.................................................. 9
2.4 Hold-down Clamp.................................................................................... 10
Figure 2.5 Installing rubber cushions and hold-down clamp...... 10
2.5 Installing Disk Drives............................................................................... 11
Figure 2.6 Installing the drives................................................... 11
2.5.1 Installing a 5.25" disk drive ......................................................... 11
2.5.2 Installing a 3.5" floppy disk drive................................................. 12
2.5.3 Installing an internal hard disk drive in the 3.5" drive bay........... 12
2.5.4 Installing a SAS/SATA HDD in the front-accessible HDD tray.... 12
Figure 2.7 Installing a SAS or SATA HDD................................. 12
2.6 Attaching the Ears and Handles.............................................................. 13
Figure 2.8 Attaching the ears and handles ................................ 13
Chapter 3 Operation............................................15
3.1 The Front Panel ...................................................................................... 16
3.1.1 Switch and buttons...................................................................... 16
Figure 3.1 The switch & buttons on the front panel ................... 16
3.1.2 LED indicators for System Status ............................................... 16
Figure 3.2 The LEDs on the front panel..................................... 16
Table 3.1: LED definition summary ........................................... 16

ACP-4320 User Manual viii
3.1.3 LED Indicators for SAS/SATA HDD Power & Status.................. 17
Table 3.2: SAS/SATA HDD LED indicator function................... 17
3.2 Replacing the Fans ................................................................................. 18
Figure 3.3 Replacing the system cooling fan............................. 18
3.2.1 Replacing the system cooling fan............................................... 18
3.2.2 Replacing the fan behind the SAS/SATA HDD backplane ......... 18
Figure 3.4 Replacing the fan behind the SAS/SATA HDD back-
plane......................................................................... 19
3.3 Cleaning the Filters ................................................................................. 19
Figure 3.5 Removing the filters.................................................. 19
3.4 Replacing the Power Supply................................................................... 20
3.4.1 Changing the single PS/2 power supply..................................... 20
Figure 3.6 Changing the single PS/2 power supply................... 20
3.4.2 Replacing the Redundant Power Supply Module ....................... 21
Figure 3.7 Replacing the redundant power supply module ....... 21
Chapter 4 Dual-Slot SAS/SATA Backplane ...... 23
4.1 Backplane Layout ................................................................................... 24
Figure 4.1 Front side layout (connect to the HDD).................... 24
Figure 4.2 Rear side layout (connect to the RAID card or mother-
board)....................................................................... 24
4.2 Connectors & Pin Definition .................................................................... 24
Table 4.1: SAS / SATA HDD connectors and
LEDs on front side.................................................... 24
Table 4.2: SATA cable connectors on rear side........................ 24
Table 4.3: CN46, Power connector ........................................... 24
Table 4.4: CN14, Fan connector ............................................... 24
Chapter 5 Alarm Board ...................................... 25
5.1 Alarm Board Layout ................................................................................ 26
Figure 5.1 Alarm board layout ................................................... 26
5.2 Alarm board specifications...................................................................... 26
5.2.1 Connectors, Jumper and Pin Definition ...................................... 26
Table 5.1: Summary of the connectors,
jumper and pin definition .......................................... 26
5.2.2 Switch settings............................................................................ 27
Table 5.2: SW1, Fan number setting......................................... 27
5.3 Thermal Sensor ...................................................................................... 28
Figure 5.2 Thermal sensor module layout ................................. 28
Table 5.3: CN1 & CN2, Temperature sensor connector ........... 28
Table 5.4: SW1, Thermal sensor I.D. number setting ............... 28
Appendix A Exploded Diagram & Parts List ....... 29
Figure A.1 Exploded Diagram & Parts List ................................ 30
Appendix B Backplane & Motherboard Options.31
B.1 Backplane Options.................................................................................. 32
Table B.1: PICMG 1.3 Backplane Options ................................ 32
Table B.2: PICMG 1.0 Backplane options ................................. 32
B.2 Motherboard Options .............................................................................. 33
Table B.3: ATX Motherboard Options........................................ 33
Table B.4: MicroATX Motherboard Options............................... 33

Chapter 1
1General Information
This chapter provides general
information about the ACP-4320.
Sections include:
!Introduction
!Specifications
!Power supply options
!Environment specification
!Dimension diagram

ACP-4320 User Manual 2
1.1 Introduction
The ACP-4320 is a 4U rackmount industrial computer chassis designed for building
mission-critical applications. With the latest industrial design on its outlook, the ACP-
4320 breakthroughs the traditional, rigid impression of industrial PCs, and provides
users with both a high-performance and a state-of-the-art operating platform.
Dual front-accessible SAS/SATA HDD trays for easy maintenance
The ACP-4320 is supplied with two front-accessible SAS/SATA HDD trays, which
provide the most economic and user-friendly solution for data storage. Users may
easily replace a SAS/SATA HDD without opening the chassis cover. Other data stor-
age options include two 5.25" drive bays for optical disk drives and one 3.5" drive bay
for floppy drive disk or internal 3.5" hard drive disk. Moreover, the front accessible
USB interface can be connected with various peripheral devices for data input,
backup, and transferal.
Unique alarm detection and notification to reduce system down time
The ACP-4320 has a unique alarm module. This module automatically detects the
system operating conditions, such as power, HDD, FAN, as well as in-chassis tem-
perature, and it may show the system status on the front LED indicators. If any failure
happens, the module will also give an audible alarm to notify users to take necessary
actions.
Versatile industrial features
The ACP-4320 supports either an ATX or a MicroATX motherboard, plus an up-to-15-
slot PICMG 1.0 backplane or 12-slot PICMG1.3 express backplane, bringing users
flexibility for their system configuration planning.
It also provides a wide range of ATX power supply options for user selection: from
300W to 400W for both single and redundant power supply. The lockable front door
prevents from any unauthorized access to data storage zone. Moreover, the stream-
lined in-chassis airflow design keeps the system cool, while the easy-to-maintain fans
and filters shorten the system's MTTR (Mean Time to Repair). All these outstanding
features make the ACP-4320 the best choice for price, performance and overall cost
of ownership.
1.2 Specifications
!Construction: Heavy duty steel
!Disk drive capacity: Two front-accessible mobile trays for 3.5" SAS/SATA
HDDs, one 3.5" bay for FDD or internal HDD, and two 5.25" bays for optical disk
drives
!I/O interfaces on front panel: two USB ports
!I/O interfaces on rear panel: (BP version) one D-SUB 9-pin opening; (MB ver-
sion) five D-SUB 9-pin & one 68-pin SCSI openings
!Indicators on front panel: LEDs for Power On, HDD activity, TEMP, FAN activ-
ity and LAN connection
!Switches on front panel: Power On/Off, System Reset and Alarm Reset
!Fans: 1 x 114 CFM & 1 x 28 CFM
!Weight: 17.6 kg (38.7 lb)
!Dimensions (W x H x D): 482 x 177 x 478 mm (19" x 7" x 18.8")

3 ACP-4320 User Manual
Chapter 1 General Information
1.3 Power Supply Options
1.3.1 300W ATX power supply with PFC (PS-300ATX-ZBE)
1.3.2 400W ATX power supply with PFC (PS-400ATX-ZBE)
1.3.3 300W ATX redundant power supply (RPS-300ATX-ZE)
1.3.4 400W ATX redundant power supply (RPS-400ATX-ZE)
Table 1.1: 300W ATX power supply with PFC (PS-300ATX-ZBE)
Output rating 300 watts max. (ATX, PFC)
Input rating 100 ~ 240 VAC @ 50 ~ 60 Hz (full range)
Output voltage +5 V @ 30 A, +3.3 V @ 28 A, +12 V @ 15 A, -5 V @ 0.3 A, -12 V
@ 0.8 A, +5 VSB @ 2 A
Minimum load +5 V @ 0.1 A, +12 V @ 0.5 A
MTBF 100,000 hours @ 25°C
Safety UL/TUV/CB/CCC
Table 1.2: 400W ATX power supply with PFC (PS-400ATX-ZBE)
Output rating 400 watts max. (ATX, PFC)
Input rating 100 ~ 240 VAC @ 47 ~ 63 Hz (full range)
Output voltage +5 V @ 35 A, +3.3 V @ 28 A, +12 V @ 30 A, -5 V @ 0.5 A, -12 V
@ 0.8 A, +5 VSB @ 2 A
Minimum load +5 V @ 3 A, +12 V @ 1 A, +5 VSB @ 0.1 A
MTBF 91,000 hours @ 25°C
Safety UL/TUV/CB/CCC
Table 1.3: 300W ATX redundant power supply (RPS-300ATX-ZE)
Output rating 300 watts max. (ATX, PFC)
Input rating 100 ~ 240 VAC @ 50 ~ 60 Hz (full range)
Output voltage +5 V @ 25 A, +3.3 V @ 18 A, +12 V @ 16 A, -5 V @ 0.5 A, -12 V
@ 0.5 A, +5 VSB @ 2 A
Minimum load +5 V @ 3 A, +3.3 V @ 1 A, +12 V @ 2 A, +5 VSB @ 0.1 A
MTBF 100,000 hours @ 25°C
Safety UL/TUV/CB/CC
Table 1.4: 400W ATX redundant power supply (RPS-400ATX-ZE)
Output rating 400 watts max. (ATX, PFC)
Input rating 100 ~ 240 VAC @ 47 ~ 63 Hz (full range)
Output voltage +5 V @ 35 A, +3.3 V @ 25 A, +12 V @ 28 A, -5 V @ 0.5 A, -12 V
@ 1.2 A, +5 VSB @ 2 A
Minimum load +5 V @ 3 A, +3.3 V @ 1 A, +12 V @ 2 A, +5 VSB @ 0.1 A
MTBF 100,000 hours @ 25°C
Safety UL/TUV/CB/CC

ACP-4320 User Manual 4
1.4 Environment Specifications
1.5 Dimension Diagram
Figure 1.1 Diagram diagram
Table 1.5: Environment specifications
Environment Operating Non-operating
Temperature 0 ~ 40°C (32 ~ 104°F) -20 ~ 60°C (-4 ~
140°F)
Humidity 10 ~ 85% @ 40°C,
non-condensing
10~95% @ 40C,
non-condensing
Vibration (5 ~ 500 MHz) 1G rms 2G
Shock 10G (with 11 ms duration,
half sine wave)
30G
Safety CE compliant
Unit: mm (inch)
MB Version
BP Version

Chapter 2
2System Setup
This chapter introduces the instal-
lation process.
Sections include:
!Installing the backplane or
motherboard
!Installing CPU card or add-on
card
!Installing disk drives
!Attaching the ears and handles

ACP-4320 User Manual 6
The following procedures are provided to assist you in installing a motherboard (or
backplane), disk drives, and plug-in cards into the ACP-4320. Please also refer to the
Appendix A, Exploded Diagram, for the detail parts of the chassis.
2.1 Removing the Top Cover
To remove the top cover, please refer to Figure 2.1.
Figure 2.1 Removing the top cover
2.2 Installing the Backplane or Motherboard
The ACP-4320 supports either up to 15-slot backplane, or ATX/microATX mother-
board. To install backplane or motherboard, please proceed as follows:
1. Dismantle the hold-down clamp by removing the two screws on both ends.
2. Find the yellow label (shown as Table 2.1) on the inside of the chassis bottom. It
shows the copper stub locations for attaching the specific backplane or mother-
board. Get the copper stubs from the accessory box and follow the table to
screw the copper stubs on the proper locations

7 ACP-4320 User Manual
Chapter 2 System Setup
3. While installing a BACKPLANE, put it in place and then attach the supplied EMI
spring shielding onto it. Then fasten the screws provided. (see Figure 2.2),
4. For the PICMG 1.0 BACKPLANE, connect the orange-white wire from connec-
tor "HCN1" on the backplane to connector "CN21" on the CPU card.
5. While installing a MOTHERBOARD, attach the motherboard I/O shield onto the
rear plate first. Then fasten the motherboard onto the chassis. (see Figure 2.3)
6. Plug in the 20- pin (or 24-pin) ATX power connector and +12 V power connector
from the power supply to the backplane or motherboard.
7. Connect the wires for the POWER switch, RESET switch, and the front USB
from the front panel to the motherboard.
8. Connect the wires for the POWER LED, HDD LED and LAN LED from the moth-
erboard to the small LED board, which is attached to the front panel of the chas-
sis.
Table 2.1: Yellow label indicating copper stub locations
Note! AIMB-74X series motherboards don't support front LAN LED function.
AIMB-744
Be careful to screw the Copper Stub under 10 kgf cm.
AIMB-750
AIMB-760
AIMB-554
AIMB-762
AIMB-560
PCA-6114P12
PCA-6115
PCE-5B12-64
AIMB-742
AIMB-740
AIMB-741
PCA-6114P12X
PCE-7B13-64
PCA-6113P7X
PCA-6114P10
PCA-6114P4
PCA-6114-B
PCA-6113DP4
PCA-6113P4R
PCA-6114P7
BP/MP MODEL
NUT NUMBER 221154
21 3910867 16151312 14 20 2117 18 19 27262423 25 MAX28 29

ACP-4320 User Manual 8
Figure 2.2 Installing a backplane
Figure 2.3 Installing a motherboard
2.3 Installing CPU card or Add-on Card
The ACP-4320BP accepts an up to 15-slot cards. To install a CPU card or add-on
card, proceed as follows:
2.3.1 Installing the CPU Card
1. Select a vacant PICMG slot for the full-length CPU card, or a PCI/ISA slot for
other add-on cards. Then, remove the corresponding I/O bracket attached to the
rear plate of the chassis.
2. Insert the CPU card (with CPU, CPU cooler, RAM, and necessary cables
installed) or add-on card vertically into the proper slot. For full-length CPU card,
please make sure that the card bracket has been inserted properly and the

9 ACP-4320 User Manual
Chapter 2 System Setup
other edge of the card has been inserted into the plastic guiding fillister. Fasten
the screws on the top of both brackets of the card. (see Figure 2.4).
3. Repeat Step 1 and 2 if there is more than one add-on card to be installed.
4. Connect the wires for the POWER switch, RESET switch, and the Connect the
9-pin USB wire, Power switch wire, and the System Reset switch wire from the
chassis to the CPU card. Connect the wire of LAN LED from the chassis to the
CPU card. Connect the wire of HDD LED from the SATA HDD backplane to the
CPU card.
5. For the PICMG 1.0 BACKPLANE, connect the orange-white wire from the con-
nector "CN20" on the CPU card to connector "HCN1" on the backplane. Con-
nect the power switch wire from the chassis to connector "CN21" on the CPU
card.
Figure 2.4 Installing a CPU card
Note! Most of Advantech's full-sized CPU cards support the front USB func-
tion. However, only the PCA-6184-B, PCA-6186-B, PCA-6188, PCA-
6190 and the later full-sized CPU cards support the front LAN LED func-
tion.

ACP-4320 User Manual 10
2.4 Hold-down Clamp
The hold-down clamp protects all the cards from vibration and shock.
After installing all the cards, please refer to the following steps to install the rubber
cushions and the hold-down clamp.
1. There are two rows of notches on both sides of the hold-down clamp for insert-
ing into rubber cushions provided in the accessory box. One side is for PCI
cards, while the other side is for ISA cards. Depending on the card height, the
cushions can be inserted upward or downward. After the rubber cushions have
been inserted into the notches, they will stabilize the add-on cards to protect
them from shock and vibration. (see Figure 2.5)
2. Secure the hold-down clamp into its original position.
Figure 2.5 Installing rubber cushions and hold-down clamp

11 ACP-4320 User Manual
Chapter 2 System Setup
2.5 Installing Disk Drives
The ACP-4320 comes with two front-accessible SAS/SATA HDD trays; it also sup-
ports two 5.25" disk drives and one 3.5"flppy disk drive or an internal SATA/ATA hard
disk drive.
Figure 2.6 Installing the drives
2.5.1 Installing a 5.25" disk drive
1. Remove the two screws, which mount the FDD bracket to the drive bay unit.
2. Remove the four screws, which mount the drive bay to the chassis, then take
out the drive bay.
3. Remove the front cover of one 5.25" drive bay. Insert one 5.25" disk drive (e.g.,
5.25" CD-ROM/-RW) into the proper location in the drive bay and fix it with four
screws.
Note! For the first time installing all disk drives together into the ACP-4320
chassis, we suggest users install the two 5.25" disk drives (refer to Sec-
tion 2.5.1) first, then the 3.5" floppy disk drive (refer to Section 2.5.2) or
internal 3.5" hard disk drive (refer to Section 2.5.3), and finally, the dual
SAS/SATA hard disk drives into the front-accessible SAS/SATA HDD
trays (refer to Section 2.5.4).
Note! The ACP-4320's dual, front-accessible SAS/SATA HDD trays do not
support the hot swap feature. User can install a SAS/SATA RAID card
for the RAID application, but the SAS/SATA HDD LEDs won't function
when the HDD fails, or when rebuilding the data, because it wasn't
designed for the specific SAS/SATA RAID card. However users can still
monitor status via the GUI application provided by the RAID card ven-
dor.

ACP-4320 User Manual 12
4. Connect a 40-pin flat cable from the CPU card/motherboard to the optical disk
drive.
5. Plug in a peripheral power connector from the power supply to the optical disk
drive.
6. Repeat Steps 3 ~ 5 if there is more than one drive.
7. Return the drive bay unit into the chassis and fix it with the four screws.
2.5.2 Installing a 3.5" floppy disk drive
1. Remove the front cover of one 3.5" drive bay.
2. Insert one 3.5" floppy disk drive into the proper location in the FDD bracket and
fix it with four screws.
3. Attach the FDD bracket to the drive bay unit and fix it with two screws.
4. Connect a 34-pin flat cable from the CPU card/motherboard to the floppy disk
drive.
5. Plug in a floppy drive power connector from the power supply to the floppy disk
drive.
2.5.3 Installing an internal hard disk drive in the 3.5" drive bay
1. Insert one 3.5" hard disk drive into the proper location in the FDD bracket and fix
it with four screws.
2. Attach the FDD bracket to the drive bay unit and fix it with two screws.
3. Connect a 40-pin flat cable from the CPU card/motherboard to an ATA (IDE)
hard disk drive or a SATA cable to a SATA hard disk drive.
4. Plug in a peripheral power connector from the power supply to the hard disk
drive.
2.5.4 Installing a SAS/SATA HDD in the front-accessible HDD tray
ACP-4320 accepts both SAS and SATA HDDs. It is not necessary to remove top
cover when installing a SAS or SATA HDD in any of the front-accessible HDD trays.
1. Left-shift the key latch of one HDD tray to unlock the tray. Hold the handle of the
tray and draw it out from the chassis.
2. Refer to Figure 2.7 and slide one hard disk drive into the proper location in the
tray and fix it with 4 ~ 6 screws.
Figure 2.7 Installing a SAS or SATA HDD