No part of this manual, including the products and software described in it, may be
reproduced, transmitted, transcribed, stored in a retrieval system, or translated into
any language in any form or by any means, except documentation kept by the purchaser for backup purposes, without the express written permission of ASUSTeK
COMPUTER INC. (“ASUS”).
ASUS PROVIDES THIS MANUAL “AS IS” WITHOUT WARRANTY OF ANY
KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL
ASUS, ITS DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE
FOR ANY INDIRECT , SPECIAL, INCIDENT AL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE
LIKE), EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL
OR PRODUCT.
Product warranty or service will not be extended if: (1) the product is repaired,
modified or altered, unless such repair, modification of alteration is authorized in
writing by ASUS; or (2) the serial number of the product is defaced or missing.
Products and corporate names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies, and are used only for
identification or explanation and to the owners’ benefit, without intent to infringe.
The product name and revision number are both printed on the product itself. Manual
revisions are released for each product design represented by the digit before and
after the period of the manual revision number . Manual updates are represented by
the third digit in the manual revision number.
For previous or updated manuals, BIOS, drivers, or product release information,
contact ASUS at http://www.asus.com.tw or through any of the means indicated on
the following page.
SPECIFICA TIONS AND INFORMA TION CONTAINED IN THIS MANUAL ARE
FURNISHED FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO
CHANGE AT ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY
APPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS AND SOFTW ARE
DESCRIBED IN IT.
Tel (English): +886-2-2890-7123
Tel (Chinese):+886-2-2890-7113
Fax:+886-2-2895-9254
Email:tsd@asus.com.tw
Newsgroup:news2.asus.com.tw
WWW:www.asus.com.tw
FTP:ftp.asus.com.tw/pub/ASUS
ASUS COMPUTER INTERNATIONAL (America)
Marketing
Address:6737 Mowry Avenue, Mowry Business Center, Building 2
4-6. Air Circulation System .................................................... 25
Fan Replacement ............................................................. 25
4-7. Long Card Guide............................................................ 26
4-8. System Speaker............................................................. 26
4-9. Power Supply ................................................................. 27
Removing the Power Supply ............................................ 27
ATX Power Button ............................................................ 27
4-10. Power Information ........................................................ 28
Output Voltage Regulation................................................ 28
Output Current Capacity ................................................... 28
V. Appendix
i. SCSI Cable Limits .............................................................. 29
ii. SCSI Connection Example ................................................ 30
iii. ASUS RAID Solutions ....................................................... 31
iv . ASUS Barebone Servers .................................................. 32
AP200 Hardware Reference Guide5
Page 6
FCC & DOC Compliance
Federal Communications Commission Statement
This device complies with FCC Rules Part 15. Operation is subject to the
following two conditions:
•This device may not cause harmful interference, and
•This device must accept any interference received, including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful interference
in a residential installation. This equipment generates, uses and can radiate
radio frequency energy and, if not installed and used in accordance with
manufacturer’s instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment to an outlet on a circuit different from that to
which the receiver is connected.
•Consult the dealer or an experienced radio/TV technician for help.
WARNING! The use of shielded cables for connection of the monitor
to the graphics card is required to assure compliance with FCC regulations. Changes or modifications to this unit not expressly approved by
the party responsible for compliance could void the user’s authority to
operate this equipment.
Canadian Department of Communications Statement
This digital apparatus does not exceed the Class B limits for radio noise
emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications.
This class B digital apparatus complies with Canadian ICES-003.
6
AP200 Hardware Reference Guide
Page 7
I. Introduction
The AP200 Hardware Reference Guide provides information and procedures on the various components used in this server . This guide is intended
for experienced users and integrators with hardware knowledge of personal
computers. You should also read all documentation and manuals included
with this server and with your separately purchased components.
1-1. Sections
There are only a few sections in this reference guide as follows:
I. Introduction
This section gives general information and features for this server.
II. Components
This is the main section which gives descriptions of each server component.
III. Getting Started
This section gives information on getting started with this server.
I. Introduction
Sections / Checklist
IV. Hardware Setup
This section gives information on setting up the server.
IV. Appendix
This section gives you additional information to help plan your server.
1-2. Component Checklist
Some components shown in this reference guide are optional and may be
individually purchased to complete this server . The following checklist provides a guideline as to the necessary components for a server.
The AP200 is a group server configured on the ASUS P2B-DS/P2B-D smart
motherboard which uses the 440BX chipset from Intel and supports two
Pentium III/II processors and 100MHz front side bus in order to handle any
complicated task.
•Dual Intel Pentium III/II processors provide the highest processing
•Four DIMM sockets support up to 1GB EDO or SDRAM modules
•Intel 440BX AGPset with I/O subsystems and front-side bus platform,
•Adaptec AIC-7890 Ultra2 SCSI chipset (optional) provides single
•Adaptec AIC-3860 transceiver chip enables Ultra2 SCSI and legacy
performance for your server up to 600MHz.
with ECC.
which boosts the traditional 66-MHz internal bus speed to 100MHz.
channel and supports any combination of 50-pin narrow or 68-pin W ide/
Ultra2 devices through the onboard 50-pin and 68-pin SCSI connectors.
Please refer to the SCSI cable limits in the appendix.
SCSI peripherals to coexist without compromising performance.
•AGP slot supports an AGP graphics card for fast hardware 3D
acceleratoin.
•Three onboard SCSI connectors to independently connect 68-pin Ul-
DA2200A (U2W), or DA2200B (U2W) to provide fault tolerant storage.
8
AP200 Hardware Reference Guide
Page 9
I. Introduction
1-4. Safeguards
Observe the following safety instructions any time you are connecting or
disconnecting any devices.
Operation Safety
IMPORTANT
• Any operation on this server must be conducted by certified
or experienced persons.
• Before operating your server, carefully read all the manuals
included with the server package.
• Before using the server, make sure all cables are correctly
connected and the power cables are not damaged. If any damage is detected, contact your dealer as soon as possible.
• To avoid short circuits, keep paper clips, screws, and staples
Safeguards
I. Introduction
away from connectors, slots, sockets and circuitry.
• Before opening the chassis panels, make sure all power cables
are unplugged.
• Avoid dust, humidity, and temperature extremes. Place the
server on a stable surface.
• If the power supply is broken, do not try to fix it by yourself.
Contact an authorized dealer.
• It is recommanded that you wear gloves when assembling or
dissembling the server to protect from cuts and scrapes.
• When the server is powered on, heat sinks and the surfaces
of certain IC devices may be hot. Do not touch them. Check
whether the fans are functioning properly.
Tools Required
A Phillips (cross) screwdriver and a standard (flat) screwdriver are needed
to install or remove the components in this server.
AP200 Hardware Reference Guide
9
Page 10
I. Introduction
I. Introduction
Electrical Safety
Electrical Safety
IMPORTANT
• Before installing or removing signal cables, ensure that the
power cables for the system unit and all attached devices are
unplugged.
• T o prevent electrical shock hazard, disconnect the power cable
from the electrical outlet before relocating the system.
• When adding or removing any additional devices to or from
the system, ensure that the power cables for those devices are
unplugged before the signal cables are connected. If possible,
disconnect all power cables from the existing system before
you add a device.
• Use one hand, when possible, to connect or disconnect signal
cables to prevent a possible shock from touching two surfaces with different electrical potentials.
CAUTION
This product is equipped with a three-wire power cable and plug
for the user’s safety. Use the power cable in conjunction with a
properly grounded electrical outlet to avoid electrical shock.
Static-Sensitive Devices
IMPORTANT
Motherboards, adapters, and disk drives are sensitive to static
electricity discharge. These devices are wrapped in antistatic
bags to prevent this damage. Take the following precautions:
• If you have an antistatic wrist strap available, use it while
handling the device.
• Do not remove the device from the antistatic bag until you
are ready to install the device in the system unit.
• With the device still in its antistatic bag, touch it to a metal
frame of the system.
• Grasp cards and boards by the edges. Hold drives by the
frame. Avoid touching the solder joints or pins.
• If you need to lay the device down while it is out of the
antistatic bag, lay it on the antistatic bag. Before picking it
up again, touch the antistatic bag and the metal frame of the
system unit at the same time.
• Handle the devices carefully in order to prevent permanent
damage.
10
AP200 Hardware Reference Guide
Page 11
I. Introduction
1-5. Preparation
1. Unpack your server, but do not connect the power cord.
IMPORTANT
Most servers use an AT power supply that has a fixed On and Off
switch located on the front. This server uses an A TX power supply that is normally off until an electrical signal is given to the
power supply through a momentary switch located on the front
of the server . There is always a standby power in the power supply for ATX power supply features to work. Therefore removing
the power cord is necessary to prevent electrical shocks when
working on the server components.
2. Unlock the padlock if one is used. This server is equipped with a lockable panel to prevent unauthorized access. Open the side panel.
3. Install final server components such as CPU, memory , hard disk drives,
and expansion cards. Use this hardware reference guide along with your
motherboard’s User’s Manual in order to complete the installations.
4. Connect a keyboard and a mouse (purchased separately).
5. Connect a VGA-compatible monitor (purchased separately).
Preparation
I. Introduction
6. Connect a printer to the parallel port if desired.
7. Connect the server to a network. (An optional network card is needed.)
8. Set the power supply input voltage to either 115V for 110V-120V areas
or 230V for 220V-240V areas.
CAUTION
The voltage must be set correctly or damage may occur.
9. Connect the included power cord to the server’s power supply.
10.Connect the server to a grounded (three pronged) AC power source such
as a UPS or power strip (preferably with surge protection).
WARNING
This server is designed for connection to a grounded (earthed)
outlet. To reduce the risk of electrical shock or damage to your
server, do not bypass the grounding plug.
AP200 Hardware Reference Guide
11
Page 12
II. Components
2-1. System Overview
Front View
A
II. Components
Front View
B
C
D
E
F
G
H
I
J
12
A.Top Panel
B.LED Status Indicator
C.CD-ROM Drive
D.5.25” Device Bays
E.ATX Power Button
F.Floppy Disk Drive
G.Reset Button
H.Infrared Window (Reserved)
I.Left Panel
J.Chassis Stabilizers
AP200 Hardware Reference Guide
Page 13
Rear View
II. Components
A
B
C
D
E
F
G
H
I
J
K
Rear View
A.Top Panel Screw
B.Air Outlet Vents
C.Power Supply Fan
D.Power Supply Switch
E.Voltage Selection
F.AC Power In Connector
G.PS/2 Keyboard
H.PS/2 Mouse
I.Chassis Fan
J.USB Ports 1 and 2
K.Serial Ports COM1 and COM2
L.Parallel Port
M.Left Panel Screw
N.Left Panel Lock
O.Expansion Slot Cover
P.Right Panel Screw
L
II. Components
M
N
O
P
AP200 Hardware Reference Guide
13
Page 14
Side View
I
II. Components
A
II. Components
Side View
J
K
L
M
B
C
D
E
F
G
H
14
A.CD-ROM Drive
B.5.25” Device Cage
C.Floppy Disk Drive
D.3.5” Device Cage
E.Hard Disk Drive
F.Fan Module
G.Speaker
H.Long Card Guide
I.Hard Disk Drive Carrier Plate
J.Power Supply
K.Chassis Fan
L.Stabilizing Link Bar
M.Motherboard
AP200 Hardware Reference Guide
Page 15
II. Components
2-2. Chassis Features
5.25” Device Cage
The 5.25” device cage is used for mounting three 5.25” devices such as CDROM, tape, and hard disk drives.
3.5” Device Cage
The 3.5” device cage is used for mounting one 3.5” floppy device, such as a
1.44MB floppy, LS-120, MO, or ZIP disk drive, and two hard disk drives.
A locking lever is used to secure the 5.25” and 3.5” device cages. It can be
turned clockwise to release the device cages.
Hard Disk Drive Carrier Plate above the Power Supply
A small hard disk drive carrier plate on top of the power supply is used to
hold an 1” hard disk drive.
Power Supply
This server uses an ATX power supply that is normally off until an electrical signal is given to the power supply through a momentary switch located on the front of the server. There is always a standby power in the
power supply for ATX power supply features to work. Therefore removing the power cord is necessary to prevent electrical shocks when working on the server components.
Air Circulation System
The server’s air circulation system is comprised of one 3-inch (8 cm) fan mounted
on the inside rear of the chassis and another one mounted on the front of the
chassis, as well as the power supply itself. The air circulation system cools the
internal system by bringing fresh air in from the back and forcing the hot air out
through the front.
Chassis Features
II. Components
System Speaker
This server has a standard speaker for error notifications and other alerts.
For computer audio capability, an audio card and external speakers are
necessary.
Long Card Guide
The chassis provides a long card guide to help hold the expansion cards in
their slots.
AP200 Hardware Reference Guide
15
Page 16
3-1. Starting the Server
Turn on the system unit by turning the power knob clockwise and pushing
inwards momentarily . The power button will snap back because ATX power
systems have an electrical On/Off switch unlike AT systems which require a
permanent On or Off position. If the Power On LED does not light, make
sure the power cord is connected to the system unit and to a working grounded
outlet.
III. Getting Started
Startup / LED / BIOS
III. Getting Started
IMPORT ANT
The power switch only turns off DC power (power supply output). To turn off AC power (power supply input), you need to
unplug the electrical cords from the power supply.
3-2. LED Indicators
Three green LED indicators are located on the top of the front panel. When lit,
the “Message” shows the status of the modem, fax, email, or voice mail as
determined by your ACPI OS and software. “Power On” lights when the motherboard receives power from the power supply . “Drive Activity” lights when
there is activity from IDE or SCSI devices connected to the motherboard.
Power On
Message
LED Indicators on the Front Panel
Drive Activity
3-3. BIOS Setup
This server does not come with any pre-installed software. When booting
your server for the first time, make BIOS settings by following the motherboard User’s Manual.
16
NOTE
When installing Windows NT 4.0 or higher operation system,
use the Windows NT installation floppy disks. Installing from
the CD will require you to pre-install SCSI drivers by pressing
<F6> before Setup begins.
AP200 Hardware Reference Guide
Page 17
IV. Hardware Setup
4-1. Chassis
Removing the Left Panel
The left panel needs to be removed to gain access to the internal system.
Left Panel Removal Procedure:
1.Remove the padlock if one is used on the left panel.
2.Remove the thumb screw on the back of the left panel.
3.Pull the left panel away from the chassis from the back.
4.Pull the bottom of the left panel outward from the bottom.
Thumb Screw
Location
Pulling the Left Panel Backward
(Step 3)
Pulling the Bottom of the Left Panel
(Step 4)
Installing the Left Panel
Left Panel Installation Procedure:
1.Hang the left panel on the hooks by the edge of the top panel. When
hooked, the left panel is still about 1.5cm away from the front panel.
2.Push the bottom of the left panel inward.
3.Slide the left panel towards the front panel.
Chassis
IV. HW Setup
T o protect the server chassis from unauthorized intrusion, you may lock the
left panel with a padlock.
AP200 Hardware Reference Guide
17
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IV. Hardware Setup
Removing the Front & Top Panels
Before removing the front panel, the top panel must be unscrewed and removed. Lean the front panel over the edge of a table or book. Reach your
fingers up into the front panel and pull the front panel away from the chassis.
IV. HW Setup
Chassis
Four of your fingers should fit
Removing the Front Panel
behind the front panel.
Device Bay Covers
With the front panel removed, the device bay covers can be removed or installed.
Device Bay Removal Procedure:
1. With your thumb, push the tab outward against the side of the front panel.
2.W ith your other hand, push the device cage cover inward from the front side.
Device Bay Cover Tab
18
Front Panel Backside
AP200 Hardware Reference Guide
Page 19
IV. Hardware Setup
Stabilizing Link Bar
The stabilizing link bar needs to be removed in order to access the motherboard or remove the 3.5” device cage. To remove the stabilizing link bar,
grasp the bar at the back end with the right hand and with the right thumb
press the back of the chassis towards your fingers (or using the palm of your
left hand, press on the back of the chassis). The bar then releases from the
latch and swings outward.
Grab here and pull
the bar outward.
Press here with your
thumb or other hand.
Chassis Side Interior
4-2. Motherboard
Read the motherboard User’s Manual for details.
Motherboard Screws
Screw the motherboard as circled. Be
careful not to overtighten the screws. Doing so may damage your motherboard.
Motherboard
IV. HW Setup
Motherboard in the Chassis
AP200 Hardware Reference Guide
19
Page 20
IV. Hardware Setup
Chassis Intrusion Photo Sensor
This motherboard has a photo sensor onboard, which detects extreme levels
of light entering the chassis such as when the chassis is opened, and sends a
signal to the ASMA software in such an event. To enable this function,
Jumper18 must be set to Enable and an external battery must be connected
to the motherboard’ s external battery connector. If you want to work on the
inside of the chassis when an external battery is connected, you should disable Jumper18 to save the battery power.
IV. HW Setup
Motherboard
Chassis Intrusion
Photo Sensor
JP18
1
R
1
EXTBATT
Photo Sensor Setting
JP18
Disable
123
Enable
P2B-D/DS Chassis Intrusion Photo Sensor
Panel Connections
Several wires should be connected to the motherboard for the IDE/SCSI
activity, power, and message indicators on the front panel. Panel connections also allow for an ATX power button, reset switch, and speaker. Connect the chassis front panel wires as illustrated:
Red (+)
Button Cell Battery
for motherboard
BIOS and clock
Chassis Panel
Connectors
White
Black
White
Red
Violet
White
Red
Black
H.D.D. LED
White
Black (+)
Speaker
White
Violet (+)
Reset SW
White
Red (+)
Power SW
Black
20
JP18
EXTBATT
Green
White
IR
Yellow
White
Turbo LED
Power LED
Yellow (+)
White
Green (+)
White
AP200 Hardware Reference Guide
Page 21
IV. Hardware Setup
4-3. 3.5” Device Cage
Before hard or floppy disk drives can be installed or removed from the 3.5”
device cage, you must remove the device cage from the chassis.
3.5” Device Cage Removal Procedure
1. Remove the stabilizing link bar, if not already removed.
2. Rotate the locking lever clockwise using a screwdriver inserted from the
top of the lever. (You must pull the lever outward first before turning it.)
3. Slide backward to remove the 3.5” device cage.
To mount the 3.5” device cage, use the reverse procedure. (Locking the
lever is possible with your fingers.)
Locking
Lever
Unlocking the 3.5” device cage
Floppy Disk Drive Mounting
The 3.5” device cage has a slot and three screw holes on each side for a 3.5”
floppy device on the top most space. The floppy must be aligned so that the
first hole matches.
Align this
Hole.
1.44MB Floppy Disk Drive Mounted in the 3.5”
Device Cage
IV. HW Setup
3.5” Device Cage
AP200 Hardware Reference Guide
21
Page 22
IV. Hardware Setup
Floppy Disk Drive Cable Connections
The 1.44MB floppy disk drive requires signal and power connections. Align
the red stripes of the signal and power cables so that they face each other.
Carefully insert the connector while visually watching the progress so that
proper alignment and insertion is made.
Red stripe of signal cable
4-4. 5.25” Device Cage
Before CD-ROM, tape, or hard disk drives can be installed or removed from
5.25” Device Cage
IV. HW Setup
the 5.25” device cage, you must remove the device cage from the chassis.
1. Rotate the locking lever. (See 4-4. 3.25” Device Cage.)
2. Pull the device cage to the left side of the chassis.
To mount the 5.25” device cage, use the reverse procedure.
Red stripe of power cable
1.44MB Floppy Disk Drive Connections
5.25” Device Cage Removal Procedure
5.25” Device Bay 1
22
5.25” Device Bay 2
5.25” Device Bay 3
Locking
Lever
5.25” Device Cage with a CD-ROM in its
Topmost Bay
AP200 Hardware Reference Guide
Page 23
IV. Hardware Setup
CD-ROM Drive Mounting and Connections
The CD-ROM disk drive mounts only in the 5.25” device cage and requires
signal and power connections. The red stripe of the signal and power cables
should face each other.
NOTE: A CD-ROM audio cable is
also provided in case you install an audio card. The only function of the audio
cable is to allow you to direct the CD
audio out signal to your audio card. Data
signals travel through the IDE cable.
CD
Audio
Output
CD-ROM Drive Connections
Red Stripe of the Signal Cable
Red Stripe of the Power Cable
4-5. Hard Disk Drives
Hard Disk Drive Carrier Plate
A carrier plate on top of the power supply is used to hold an one-inch hard
disk drive. Screw the underside of the hard disk drive on the bottom of the
carrier plate as shown.
Hard Disk Drives
IV. HW Setup
Hard Disk Drive Mounted on the
Carrier Plate
AP200 Hardware Reference Guide
The carrier slides into the
chassis in this direction.
The handle faces upward.
23
Page 24
IV. Hardware Setup
Mounting the Hard Drive above the Power Supply
Insert the carrier plate and hard disk drive into the slot on the bottom of the
chassis top panel.
IV. HW Setup
Hard Disk Drives
For proper signal stability, a special twisted ribbon cable must be used to
connect the SCSI hard drive to the motherboard.
Ultra2 SCSI Hard Drive Cable Connections
Red Stripe of the Signal Cable
Red Stripe of the Power Cable
24
SCSI Hard Disk Drive Connections
AP200 Hardware Reference Guide
Page 25
IV. Hardware Setup
External SCSI Terminator
In order to prevent SCSI signal loss, the provided external SCSI terminator
must be used at the end of the 68-pin SCSI cable. 50-pin SCSI cables may
also use terminators but usually use termination jumpers on the device itself. All termination jumpers must be removed when using the external SCSI
terminator .
4-6. Air Circulation System
Fan Replacement
The front and rear fans are both secured by plastic housings. The fan housings can be removed by pressing in the clip and sliding the housing upward.
Press the clip with a screwdriver to
release.
IMPORTANT: When replac-
ing the fans, be sure that both fans
rotate in the same direction. Use the
manufacturer’s sticker on one side
of the fan as a reference. The air
should flow from the rear of the
chassis to the front of the chassis.
IV. HW Setup
Air Circulation System
AP200 Hardware Reference Guide
25
Page 26
IV. Hardware Setup
4-7. Long Card Guide
To reach into the inside front of the chassis, you may want to remove the
long card guide first. Press the plastic clips with a screwdriver as shown.
Press the clips with a
screwdriver to release.
Card Guide / Speaker
IV. HW Setup
4-8. System Speaker
The standard system speaker mounts in the chassis as shown here. To remove the speaker, press the metal clip (or pry from the front of the chassis)
with a screwdriver and lift the speaker upward.
Press the clip (or pry from
the front) with a screwdriver
to release.
26
AP200 Hardware Reference Guide
Page 27
IV. Hardware Setup
4-9. Power Supply
Removing the Power Supply
Unmounting the power supply must be done from the inside of the chassis.
Remove the left panel of the chassis and the four screws securing the power
supply. Press inward to release the power supply.
Press inward to release
the power supply.
Power Supply Unmounted
ATX Power Button
The DC power button, secured by two screws, is located on the front panel
of the chassis.
Power Button Screws
Power Supply
IV. HW Setup
Reset Button
Infrared Window
Buttons on the Front Panel
AP200 Hardware Reference Guide
(reserved)
27
Page 28
IV. Hardware Setup
4-10. Power Information
Output Voltage Regulation
OutputMinMaxTolerance
+5.0V+4.75V +5.25V±5%
+12.0V+11.40V +12.60V±5%
+3.3V +3.135V +3.465V±5%
-12.0V-11.40V -12.60V±5%
-5.0V-4.75V-5.25V±5%
Output Current Capacity
LoadMin (A)Nom (A)Max (A)
+3.3V1.50 7.5015.00
+5.0V2.00 10.0020.00
+12.0V 1.20 6.0012.00
-5.0V0.00 0.250.50
Power Information
IV. HW Setup
-12.0V0.000.250.50
+5VSB0.000.501.00
IMPORTANT
1. The total output power for 3.3V and 5V combined shall be
100W .
2. Cross regulation:
+5V 20A: 4.75V Min; +12V 1.2A: 12.60V Max
+5V 2A: 5.25V Max; +12V 12A: 11.40V Min
28
AP200 Hardware Reference Guide
Page 29
V. Appendix
i. SCSI Cable Limits
SCSI cables have a limit to the length that it may have. Exceeding the length
may cause problems mounting or using any one of the SCSI devices.
• The SCSI ID for devices on one connector cannot be the same
as the SCSI ID for devices on the other connectors. None of
the devices on any connector can use ID7, which is reserved
for the SCSI controller.
• A maximum of 15 devices may be connected to the mother-
board (three connectors) at one time. The following “Max Devices” are for individual connectors and do not take into account other SCSI devices.
NOTE
1) A total of 15 “Ultra2-SCSI” devices (ID0-ID15) may be con-
nected to the 68-pin Ultra2 connector on the motherboard.
If connecting Fast/Ultra devices with Ultra2 devices on the
Ultra2 connector, the entire SCSI bus will be limited to the
Ultra SCSI conditions listed above. Mixing SCSI devices is
not recommended.
2) A total of 7 “Wide Ultra-SCSI” devices (ID0-ID15) may be
connected to the 68-pin Wide connector if using a 1.5m (4.9ft)
cable, but only 4 “Wide Ultra-SCSI” devcies if using a 3m
(9.89ft) cable. Ultra-SCSI technology is unstable over long
lengths. Therefore stability will depend on the quality of your
cable and devices.
3) A total of 15 “Wide-SCSI” devices (ID0-ID15) may be con-
nected to the 68-pin Wide connector.
4) A total of 7 “Narrow Ultra-SCSI” devices (ID0-ID6) may be
connected to the 50-pin Narrow connector when using 1.5m
(4.9ft) cable but only 4 devices when using a 3m (9.8ft) cable.
5) A total of 7 “Narrow Fast SCSI” devices (ID0-ID6) may be
connected to the 50-pin Narrow connector.
V. Appendix
SCSI Cable Limits
AP200 Hardware Reference Guide
29
Page 30
V. Appendix
ii. SCSI Connection Example
This is an example of how SCSI devices can be connected to your server.
•Two 9GB Ultra2-SCSI hard disks in the 3.5” cage can be connected to
the Ultra2 connector on the motherboard for 18GB of main storage.
•One Ultra-SCSI tape drive in the 5.25” cage is connected to the 50-pin
narrow connector on the motherboard for routine backups.
•The Wide-SCSI connector on the motherboard can be extended (using
an optional SCSI cable with external bracket) to the chassis slot opening
for connection of an external 4GB Ultra-Wide hard disk drive and a
Wide-SCSI CD recorder for archives.
68-pin Fast/Ultra-Wide Cable
V. Appendix
SCSI Cabling
68-pin Ultra-Wide Hard Disk
IDE Hard Disk Drive
50-pin Fast/Ultra-Narrow Cable
68-pin Fast/Ultra-Wide Cable
68-pin Ultra2 Cable
68-pin external SCSI connector
You must terminate the SCSI cable even if no devices
are connected. Either place a terminator here or remove
the SCSI cable from the motherboard. This holds true for
each unused SCSI cable.