No part of this product, including the product and software may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any language in any form by any means without the express written permission of ASUST eK
COMPUTER INC. (hereinafter referred to as ASUS) except documentation kept
by the purchaser for backup purposes.
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 be liable for
any loss or profits, loss of business, loss of use or data, interruption of business, or
for indirect, special, incidental, or consequential damages of any kind, even if ASUS
has been advised of the possibility of such damages arising from any defect or error
in this manual or product. ASUS may revise this manual from time to time without
notice. For updated BIOS, drivers, or product release information you may visit
ASUSTeK's home page at: http://www.asus.com.tw/
Products mentioned in this manual are mentioned for identification purposes only.
Product names appearing in this manual may or may not be registered trademarks
or copyrights of their respective companies.
The product name and revision number are both printed on the motherboard itself.
Manual revisions are released for each design represented by the digit before the
period and for additions or corrections represented by the digit after the period.
The BIOS version noted below represents the current release during this manual
revision.
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:
•Re-orient 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.
VI
P/E-P55T2P4D User's Manual
I. INTRODUCTION
How this manual is organized
This manual is divided into the following sections:
I.Introduction: Manual information and checklist
II.Features: Information and specifications concerning this product
III. Installation: Instructions on setting up the motherboard
IV. BIOS Setup: BIOS software setup information
V.DMI Utility: BIOS supported Desktop Management Interface
VI. PCI-SC200: Installation of an optional SCSI card
Item Checklist
Please check that your package is complete. If you discover damaged or missing
items, please contact your retailer.
√The P/E-P55T2P4D motherboard
√2 serial port ribbon cables attached to a mounting bracket
I. INTRODUCTION
(Manual / Checklist)
√1 parallel ribbon cable with mounting bracket
√1 IDE ribbon cable
√1 floppy ribbon cable
√1 diskette containing support software as follows:
• Flash Memory Writer utility to update motherboard BIOS
• Binary file containing a BIOS version
• Desktop Management Interface (DMI) software
• System Configuration Utility (SCU)
• Readme files give instructions on use of the files
√1 diskette containing:
• Onboard enhanced IDE driver
√1 diskette containing:
• EISA Configuration Utility
√This user's manual
ASUS 256/512KB Pipelined Burst Cache Module with TAG RAM
Optional PS/2 mouse cable with mounting bracket
Optional infrared module
Optional PCI-SC200 Fast-SCSI card
P/E-P55T2P4D User’s Manual1
II. FEATURES
Features of This Motherboard
The P/E-P55T2P4D is carefully designed for the demanding corporate PC user who
wants a high performance server motherboard that:
•Easy Installation: Is equipped with BIOS that supports auto
detection of hard drives and Plug and Play to make setup of hard drives and
expansion cards virtually automatic.
II. FEATURES
(Features)
•Multi-Processor/Multi-Speed Support: Supports two Pentium CPU (75-
200MHz). (See page 17)
•Intel Chipset: Features Intel's 430HX PCIset with EISA I/O subsystems.
•Error Checking and Correcting (ECC): Using Intel's 430HX PCIset to-
gether with parity DRAM modules can detect multi-bit memory
errors and correct 1-bit memory errors.
•Desktop Management Interface (DMI): Supports DMI through BIOS which
allows hardware to communicate within a standard protocol
creating a higher level of compatibility (see section V).
•L2 Cache: This motherboard has 0KB cache onboard and uses a Pipelined
Burst Sychronous cache module to upgrade to 256KB or 512KB (See page
16 for compatible cache modules)
•Versatile DRAM Memory Support: Supports eight 72-pin SIMMs of 4MB,
8MB, 16MB, 32MB, or 64MB to form a memory size between 8MB to 512MB.
Supports both Fast Page Mode (FPM) and Extended Data Output (EDO) SIMMs
(see page 14).
•EISA, ISA, and PCI Expansion Slots: Provides four 32-bit EISA slots, one
16-bit ISA slot, three 32-bit PCI slots, and one PCI/MediaBus 2.0 which allows the use of either a standard PCI card or the ASUS MediaBus Card.
•ASUS MediaBus Rev 2.0: Features an expansion slot extension shared with
PCI Slot 4 for an optional high-performance expansion card which includes
two functions in one easy-to-install card. (For revision
compatibility information, please refer to page 20.)
•Super Multi-I/O: Provides two high-speed UART compatible serial ports
and one parallel port with EPP and ECP capabilities. UART2 can also be
directed from COM2 to the Infrared Module for wireless connections. Two
floppy drives of either 5.25" or 3.5" (1.44MB or 2.88MB) are also supported
without an external card. The Japanese "Floppy 3 mode" (3.5" 1.2MB)
floppy standard is also supported.
•NCR SCSI BIOS: This motherboard has firmware that supports the optional
ASUS PCI-SC200 SCSI controller cards. (see section VI)
2P/E-P55T2P4D User’s Manual
II. FEATURES
•PCI Bus Master IDE Controller: Comes with an onboard PCI Bus Master
IDE controller with two connectors that supports four IDE
devices in two channels, provides faster data transfer rates, and
supports Enhanced IDE devices such as CD-ROM drives. This controller supports PIO Modes 3 & 4 and Bus Master IDE DMA Mode 2. BIOS supports
IDE CD-ROM drive bootup.
•Optional IrDA and PS/2 Mouse Connector: This motherboard
supports an optional infrared port module for wireless interface and a PS/2
mouse cable set for connecting a PS/2 mouse.
14) FAN CN 1 & 2p. 26 CPU 12V Cooling Fan connector
15) IR CONp. 26 Infrared Port Module connector
P/E-P55T2P4D User’s Manual5
III. INSTALLATION
Pin 1
III. INSTALLATION
Installation Steps
Before using your computer, you must complete the following steps:
1.Set Jumpers on the Motherboard
2.Install System Memory
3.Install the Central Processing Unit (CPU)
4.Install Expansion Cards
5.Connect Ribbon Cables, Cabinet Wires, and Power Supply
6.Setup the BIOS Software
1. Jumpers
Several hardware settings are made through the use of jumper caps to connect jumper
pins (JP) on the motherboard. See "Map of the Motherboard" on page 4 for locations of jumpers. The jumper settings will be described numerically such as [----],
(Jumpers)
[1-2], [2-3] for no connection, connect pins 1&2, and connect pins 2&3 respectively. Pin 1 for our motherboards is always on top
holding the motherboard with the keyboard connector away from yourself. A "1" is
written besides pin 1 on jumpers with three pins. The jumpers will also be shown
graphically such as to connect pins 1&2 and to connect pins 2&3.
Jumpers with two pins will be shown as for Short (On) andfor Open
(Off). For manufacturing simplicity, the jumpers may be sharing pins from other
groups. Use the diagrams in this manual instead of following the pin layout on the
board. Settings with two jumper numbers require that both jumpers be moved together. To connect the pins, simply place a plastic jumper cap over the two pins as
diagramed.
WARNING: Computer motheboards and components contain very delicate
Integrated Circuit (IC) chips. To protect the motherboard and other components against damage from static electricity, you should follow some precautions whenever you work on your computer.
1.Unplug your computer when working on the inside.
2.Hold components by the edges and try not to touch the IC chips, leads, or
circuitry.
3.Use a grounded wrist strap before handling computer components.
4.Place components on a grounded antistatic pad or on the bag that came with
the component whenever the components are separated from the system.
Pin 1
or on the left
when
6P/E-P55T2P4D User’s Manual
III. INSTALLATION
Jumper Settings
1.UART 2 Selection (JP24 & 25) (SMC37C665IR Only)
If your motherboard is using the SMC37C665IR chipset, besides changing the
function of UART2 (serial, parallel, floppy, and infrared) in BIOS setup (see
page 38), you must also change the following jumpers. If your motherboard is
not using this chipset, UAR T2 is controlled through BIOS only and these jumpers will not be available on the motherboard.
If your motherboard is using the SMC37C665IR or SMC37C669 chipset, you
can select DMA channels for the ECP function with the following jumpers. If
your motherboard is not using the above chipsets, the DMA channel is controlled by BIOS and these jumpers will not be available.
DMAJP27JP26
Channel 3[2-3][2-3] (Default)
Channel 1[1-2][1-2]
(Jumpers)
III. INSTALLATION
JP27
JP26
1
2
3
CH 3 (Default)
ECP DMA Channel Selection (Channel 3 / Channel 1)
JP27
CH 1
JP26
1
2
3
P/E-P55T2P4D User’s Manual7
III. INSTALLATION
3-5. Processor Type
Depending on the type of processor that you install, you need to set these jumpers to select either Single Power Plane (such as the Intel P54C) or Split Power
Planes (such as the Intel P55C) and set the different voltages under each type.
Power Type:SingleSingleSplitSplitSplitSplit
PowerPower Power PowerPower Power
PlanePlanePlanes Planes Planes Planes
NOTE: Processors using split power planes have not been tested. Support of processors
using split power planes cannot be guranteed until each processor is available and fully tested.
8P/E-P55T2P4D User’s Manual
III. INSTALLATION
3.Voltage Type (JP9, 10, 11, 12, 17)
JP10
JP9
JP12
JP11
JP10
JP9
JP12
JP11
Single Power Plane (Default)
(Intel P54C)
Processor Type (Single Power Plane / Split Power Plane)
4.Vcore (JP5, 6, 7, 8, 19, 20, 21)
STD 3.3V-3.465V
(Default)
Voltage Select for Vcore
Split 2.5V
JP17
JP5
JP6
JP7
JP8
JP19
JP20
JP21
JP5
JP6
JP7
JP8
JP19
JP20
JP21
1
2
3
VRE 3.4V-3.6V
Split 2.7V
JP5
JP6
JP7
JP8
JP19
JP20
JP21
JP5
JP6
JP7
JP8
JP19
JP20
JP21
JP17
1
2
3
Split Power Plane
(Intel P55C)
JP5
JP6
JP7
JP8
JP19
JP20
JP21
Split 2.8V
JP5
JP6
JP7
JP8
JP19
JP20
JP21
Split 2.88V
(Jumpers)
III. INSTALLATION
5.Vio (JP2, 3)
JP3
JP2
STD 3.3V - 3.465V
(Default)
Voltage Selection for Vio (STD / VRE)
VRE 3.4V - 3.6V
JP3
JP2
P/E-P55T2P4D User’s Manual9
III. INSTALLATION
6.CPU to BUS Frequency Ratio (JP15 & 16)
These jumpers set the frequency ratio between the Internal frequency of the
CPU and the External frequency (called the BUS Clock) within the CPU. These
must be set together with the above jumpers CPU External (BUS) Frequency
Selection.
7.CPU External (BUS) Frequency Selection (JP29 & 30)
These jumpers instructs the clock generator what frequency to send to the CPU.
These allow the selection of the CPU’ s External frequency (or BUS Clock). The
BUS Clock times the BUS Ratio equals the CPU's Internal frequency (the advertised CPU speed).
JP16
JP15
JP16
JP15
JP16
JP15
JP16
JP15
III. INSTALLATION
(Jumpers)
1.5 x2.0 x2.5 x3.0 x
CPU : BUS Frequency Ratio (1.5x, 2.0x, 2.5x, 3.0x)
1
2
JP30
3
JP29
50MHz
CPU External Clock (BUS) Frequency Selection (Rev 1.3)
JP30
JP29
1
2
60MHz
1
3
JP30
JP29
2
66MHz
3
Set the above jumpers by the Internal speed of the Intel CPU as follows:
This turns on or off the Dual CPU support. Most operating systems allow dual
CPU support to be enabled even though one CPU is installed which will allows
upgrading to dual CPU's without having to reinstall the operating system.
Dual CPU JP18
Enable[1-2] (Default)
Disable[2-3]
JP18
1
2
3
Enable (Default)
APIC Dual CPU (Enable / Disable)
JP18
1
2
3
Disabled
(Jumpers)
III. INSTALLATION
P/E-P55T2P4D User’s Manual11
III. INSTALLATION
9.Flash ROM Boot Block Programming (JP32)
This sets the operation mode of the boot block area of the BIOS Flash ROM to
allow programming in the Enabled position for use with the "Flash Memory
Writer" BIOS programming utility as described on page 47.
ProgrammingJP32
Disabled[1-2] (Default)
Enabled[2-3]
III. INSTALLATION
(Memory)
123
JP32
Disabled (Default)
Boot Block Programming (Disable / Enable)
123
JP32
Enabled
10. CMOS RAM (JP34)
This clears the user-entered information stored in the Dallas Real Time Clock
such as hard disk information and passwords. To clear the CMOS data: (1)
Turn off the PC, (2) Short this jumper, (3) Power on the PC,
(4) Turn off the PC, (5) Remove this jumper, (6) Power on the PC, (7) Hold
down <Delete> during bootup and enter BIOS setup to re-enter user information.
SelectionsJP34
Normal Operation[open] (Default)
Clear CMOS Data[short] (momentarily)
JP34
Operation (Default) Clear CMOS Data
CMOS RAM (Operation / Clear CMOS Data)
JP34
12P/E-P55T2P4D User’s Manual
III. INSTALLATION
11. PCI Slot 1 Mode Selection (JP37, 38)
By default, the onboard IDE uses Programmable I/O (PIO) Mode and PCI Slot
1 uses BUS Master Mode so that BUS Master expansion cards on PCI Slot 1
can be used. If you want the onboard IDE to use BUS Master mode and are not
planning to use a BUS Master card on PCI 1, then you mayselect Slave
mode for PCI 1.
PCI 1JP38JP37
Master[2-3][2-3] (default)
Slave[1-2][1-2]
JP38
JP37
1
2
3
PCI 1 Master (Default)
PCI Slot 1 Mode Select (BUS Master / Slave)
JP38
JP37
1
2
3
PCI 1 Slave
12. Total Level 2 Cache Size Setting (JP39)
There is no level 2 cache onboard, you can upgrade using ASUS Pipelined Burst
Cache Module Rev 1.6 with TAG SRAM for either 256KB or 512KB cache
size.
IMPORTANT: See page 16 "External Cache" for information concerning
compatible cache types and installation.
(DRAM Memory)
III. INSTALLATION
SizeJP39
512KB[1-2] (Default)
256KB[2-3]
P/E-P55T2P4D User’s Manual13
JP39
1
2
3
512KB (Default)
Total L2 Cache Size Setting (256KB / 512KB)
JP39
1
2
3
256KB
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