ASUS CP55T2D User Manual

R

C-P55T2D CPU Card

USER'S MANUAL

USER'S NOTICE

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.

Specifications are subject to change without notice. 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.

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.

• Intel, LANDesk, and Pentium are registered trademarks of Intel Corporation.

• IBM is a registered trademark of International Business Machines Corp.

• Symbios is a registered trademark of Symbios Logic Corporation.

• Windows and MS-DOS are registered trademarks of Microsoft Corporation.

• Sound Blaster AWE32 and SB16 are trademarks of Creative Technology Ltd.

• Adobe and Acrobat are registered trademarks of Adobe Systems Incorporated.
The product name and revision number are both printed on the board itself. Manual

revisions are released for each board 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 you may visit the ASUS home page
at http://www.asus.com.tw/ or contact ASUS from the following page.

© Copyright 1997 ASUSTeK COMPUTER INC. All rights reserved.

Product Name: ASUS C-P55T2D
Manual Revision: 1.43
Release Date: May 1997

II

ASUS C-P55T2D User's Manual

ASUS CONTACT INFORMATION

ASUSTeK COMPUTER INC.

Marketing Info:

Address: 150 Li-Te Road, Peitou, Taipei, Taiwan, ROC
Telephone: [phone]
Fax: [phone]
Email: [e-mail]

Technical Support:

Fax: [phone]
BBS: 886-2-896-4667
Email: [e-mail]
WWW: http://www.asus.com.tw/
Gopher: gopher.asus.com.tw
FTP: ftp.asus.com.tw/pub/ASUS

ASUS COMPUTER INTERNATIONAL

Marketing Info:

Address: 721 Charcot Avenue, San Jose, CA 95131, USA
Telephone: [phone]
Fax: [phone]
Email: [e-mail]

Technical Support:

BBS: 1-408-474-0569
Email: [e-mail]

ASUS COMPUTER GmbH

Marketing Info:

Address: Harkort Str. 25, 40880 Ratingen, BRD, Germany
Telephone: [phone]
Fax: [phone]
Email: [e-mail]

Technical Support:

BBS: 49-2102-448690
Email: [e-mail]

ASUS C-P55T2D User's Manual III

CONTENTS

I. INTRODUCTION........................................................1

How this manual is organized..........................................................1

Item Checklist ..................................................................................1

II. FEATURES .................................................................2

Map of the CPU Card.................................................................2

Features of This CPU card...............................................................2

Parts of the CPU Card ................................................................2

III. INSTALLATION ......................................................3

Jumper Settings ..........................................................................3

Dual CPU Compatibility ............................................................5

Dual CPU Identification Table .............................................6

Power Connection Procedures..............................................7

BIOS Chip ..................................................................................7

Support Software........................................................................7

IV. BIOS SOFTWARE ....................................................8

Flash Memory Writer Utility ...........................................................8

The Flash Memory Writer Utility Screen: ............................8

BIOS Setup ....................................................................................11

Load Defaults .....................................................................12

Standard CMOS Setup .............................................................12

Details of Standard CMOS Setup:......................................13

BIOS Features Setup ................................................................16

Details of BIOS Features Setup:.........................................16

Chipset Features Setup .............................................................19

Power Management Setup........................................................22

Details of Power Management Setup: ................................22

PNP and PCI Setup ..................................................................24

Load BIOS Defaults .................................................................26

Load Setup Defaults .................................................................26

Supervisor Password and User Password ................................27

IDE HDD Auto Detection ........................................................28

Save and Exit Setup .................................................................29

Exit Without Saving .................................................................29

IV

ASUS C-P55T2D User's Manual

CONTENTS

V. DESKTOP MANAGEMENT...................................31

Desktop Management Interface (DMI)..........................................31

Introducing the DMI Configuration Utility ........................31

System Requirements .........................................................31

Using the DMI Configuration Utility .................................32

Notes:..................................................................................32

ASUS C-P55T2D User's Manual V

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:

• 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

ASUS C-P55T2D 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 CPU card
IV. BIOS Setup: BIOS software setup information
V. DMI Utility: BIOS supported Desktop Management Interface

Item Checklist

Please check that your package is complete. If you discover damaged or missing
items, please contact your retailer.

√ The C-P55T2D CPU card
√ Support software (view FILELIST.TXT detailed contents and description)

• Bus Master IDE Drivers

• PFLASH BIOS Utility

I. INTRODUCTION

(Manual / Checklist)

√ This user's manual

ASUS C-P55T2D User’s Manual 1

II. FEATURES

(Features)

II. FEATURES

Features of This CPU card

The C-P55T2D is carefully designed for the demanding PC user who wants great
versatility in the assembly of a computer system. This CPU card:

• PS/2 Connectors: PS/2 Mouse & PS/2 Keyboard connectors on bracket.

• V ersatile Processor Support: Intel Pentium

P54CS), IBM®/Cyrix® 6x86-PR166+ (Rev 2.7 or later), IBM®/Cyrix® 6x86MX
(PR166 & above), AMD-K5™ (PR75-PR133), AMD-K6™ (PR166-PR233).
Note: Only Intel CPUs support dual-processor configuration. See page 6 table.

• Intel Chipset: Features Intel's 430HX PCIset with I/O subsystems.

• Error Checking and Corr ecting (ECC): Using Intel's 430HX PCIset and par-

ity DRAM modules can detect and correct 1-bit memory errors.

• Oncard L2 Cache Memory: Oncard 512KB Pipelined Burst SRAM.

®

75-233MHz (P55C-MMX™, P54C/

™

Parts of the CPU Card

Dual ZIF Socket 7

Intel 430HX PCIset

Map of the CPU Card

CPU ZIF Socket 7

Processor 2

CPU Fan Power

CPU ZIF Socket 7

Processor 1

JP1

CPU Fan Power

3V-CPU Vcore
Voltage Selection

PS/2 Mouse

12 543

JP20

CPU Vcore
Voltage Selection

PS/2
Mouse

PS/2
Keyboard

JP15
JP16
Freq. Ratio

JP14

APIC Dual CPU Selection

2 ASUS C-P55T2D User’s Manual

PS/2 Keyboard

III. INSTALLATION

Jumper Settings

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.

2

Complete Names:

Intel Pentium P54C, P55C-MMX
AMD K5, K6
IBM/Cyrix 6X86, 6x86MX

1

3/2 2 5/2 3

JP15
JP16

P54C/K5
P55C/K6/MX
IBM/Cyrix 6X86

CPU : BUS Frequency Ratio

1.5x(3/2)

3.5X(7/2)

3.0x(3/1)

2.0x(2/1)

2.0x(2/1)

2.0x(2/1)

2.5x(5/2)

2.5x(5/2)

1.0x(1/1)

3.0x(3/1)

3.0x(3/1)

4.0x(4/1)

Set the jumpers by the Internal speed of the Intel Pentium or compatible CPUs as follows:

(CPU Card (CPU Ext. Freq
CPU BUS BUS Ratio) Ext. on Baseboard)
Internal Ratio JP15 JP16 Freq. JP3 JP2

233MHz 3.5x [OFF] [OFF] 66MHz [1-2] [2-3]
200MHz 3.0x [ON] [OFF] 66MHz [1-2] [2-3]
166MHz 2.5x [ON] [ON] 66MHz [1-2] [2-3]
150MHz 2.5x [ON] [ON] 60MHz [2-3] [1-2]
133MHz 2.0x [OFF] [ON] 66MHz [1-2] [2-3]
120MHz 2.0x [OFF] [ON] 60MHz [2-3] [1-2]
100MHz 1.5x [OFF] [OFF] 66MHz [1-2] [2-3]
90MHz 1.5x [OFF] [OFF] 60MHz [2-3] [1-2]
75MHz 1.5x [OFF] [OFF] 50MHz [1-2] [1-2]

(Jumpers)

III. INSTALLATION

JP2

JP2

JP2

JP3

66MHz

CPU External Clock (BUS) Frequency Selection

JP3

1
2
3

60MHz

JP3

1
2
3

1
2
3

50MHz

WARNING: The CPU and/or motherboard will overheat if there is no
airflow across the CPU and onboard heatsinks.

ASUS C-P55T2D User’s Manual 3

III. INSTALLATION

Single/Dual Power Plane CPU Voltage Regulator Selections (JP1, 20)

The following jumpers set the voltage supplied to the CPU. Determine whether
your CPU has a Single Power Plane or Dual Power Planes and then the volt­age that it uses. When a single power plane CPU is installed, the dual power
plane selections will be automatically disabled. When a dual power plane CPU
is installed, the single power plane selections will be automatically disabled.
You may have one jumper on the Single Power Plane and another on the Dual

Power Planes at the same time.

WARNING: Incorrect setting can damage your CPU. If you are not
exactly clear on CPU jumper settings, check with your retailer.

3 Volt CPU Vcore Voltage Selection (JP1)

III. INSTALLATION

(Jumpers)

JP1

3

2

1

P54C/CS
(STD 3.4V) Default

Single Power Plane CPU Voltage Selection

2
1

JP1

3
2
1

P54C/CS/K5/6x86
(VRE 3.5V)

2.x Volt CPU Vcore Voltage Selection (JP20: 1-5)

12 543

JP20

2

1

K6-PR233 (3.2V)

JP20

P55C/6x86MX (2.8V)

Dual Power Plane CPU Voltage Selection

Power Type: Single Power Plane Dual Power Planes
CPU Voltage: STD VRE 2.5V 2.7V 2.8V 2.9V 3.2V
JP1 [1-2] [2-3] ----- ----- ----- ----- -----

12 543

K6-PR166/200 (2.9V)

JP20

JP20 ----- ----- [Short1] [Short2] [Short3] [Short4] [Short5]

IMPORTANT: When installing only one processor, you must use the
“Processor 1” CPU ZIF Socket.

4 ASUS C-P55T2D User’s Manual

III. INSTALLATION

APIC Dual CPU Selection (JP14)

This jumper turns on or off the multiprocessor operating system’ s support for multi­processors regardless of the number of processors installed in the system.

For single processor operating systems (e.g. DOS, OS/2 Warp, Win3.1x,
Win95, Nextstep): You can use one (or two) processor(s) and this “APIC Dual

CPU Selection” jumper has no function (you may leave on default setting).

For multiprocessor operating systems (e.g. WinNT, Unixware, SCO Unix
MP, Solaris 2.51): You can use one or two processors and Enable this “APIC

Dual CPU Selection” jumper . This solution allows some multiprocessor operat­ing systems to upgrade from one processor to two processors in the future with­out having to reinstall a multiprocessor OS. Otherwise Disable the dual proces­sor support in a multiprocessor operating system if for some reason necessary.

Dual CPU JP14

Enable [1-2] (Default)
Disable [2-3]

2

1

123

JP14

Enable (Default)

APIC Dual CPU (Enable/Disable)

123

Disable

JP14

Dual CPU Compatibility

A table on the next page shows the compatible CPU’s to be used on the ZIF socket
for the second processor. The following are codes used in the table:

• Type 0: This type of CPU can be used as the first processor only. Almost all

CPU’s are in this category and therefore not listed in the table.

• Type 2: This type of CPU can only be used as the second processor.

• Type 0/2: This type of CPU can be used as the first or second processor.

• Core Speed: This is the advertised speed of the CPU.

• BUS Speed: This is the BUS frequency that the baseboard must be set to.

• S-Spec: This is the identification code marked on the surface of the processor

without an attached fan heatsink. The code is marked on the underside of pro­cessors with an attached fan heatsink.

5: This is a boxed CPU without an attached fan heatsink
6: This is a boxed CPU with an attached fan heatsink

(Jumpers)

III. INSTALLATION

ASUS C-P55T2D User’s Manual 5

III. INSTALLATION

Dual CPU Identification Table

For 75-, 90, 100-, 120-, 133-, 150-, 166-, 200-MHz Pentium Processors

III. INSTALLATION

(Dual CPU Table)

Type Speed MHz S-Spec Voltage

(Core/BUS)

0/2 75/50 SX969 STD
0/2 75/50 SX998 STD
0/2 75/50 SZ994
0/2 75/50 SU0706STD
0/2 75/50 SX961 STD
0/2 75/50 SZ9775STD
0/2 75/50 SY005 STD
0/2 75/50 SU0976STD
0/2 75/50 SU0986STD

2 90/60 SX874 STD
0/2 90/60 SX957 STD
0/2 90/60 SX958 STD
0/2 90/60 SX959 STD
0/2 90/60 SZ9785STD
2 90/60 SX942 STD
2 90/60 SX943 STD
2 90/60 SX944 STD
0/2 90/60 SX968 STD
0/2 90/60 SZ9955STD
0/2 90/60 SU0316STD
0/2 90/60 SY006 STD

0/2 100/50, 66 SX970 VRE
0/2 100/50, 66 SX963 STD
0/2 100/50, 66 SZ9965STD
0/2 100/50, 66 SU0326STD

5

STD

Type Speed MHz S-Spec Voltage

(Core/BUS)

0/2 100/66 SX962 VRE
0/2 100/66 SY007 STD
0/2 100/66 SU110
0/2 100/66 SU0996STD

0/2 120/60 SY033 STD
0/2 120/60 SU1006STD

0/2 133/66 SY022 STD
0/2 133/66 SY023 STD
0/2 133/66 SU0736STD
0/2 120/60 SK110 STD
0/2 133/66 SK106 STD
0/2 133/66 S106J7STD
0/2 133/66 SK107 STD
0/2 133/66 SU0386STD

0/2 150/60 SY015 STD
0/2 150/60 SU071

0/2 166/66 SY016 VRE
0/2 166/66 SY017 VRE
0/2 166/66 SU0726VRE

0/2 200/66 SY044 VRE

5

STD

6

STD

6 ASUS C-P55T2D User’s Manual