Asus C-P55T2D User manual

R
C-P55T2D CPU Card
USER'S MANUAL

ASUS C-P55T2D User's Manual
II
USER'S NOTICE
Product Name: ASUS C-P55T2D
Manual Revision: 1.43
Release Date: May 1997
No part of this product, including the product and software may be reproduced,
transmitted, transcribed, stored in a retrieval system, or translated into any lan-
guageinanyformbyanymeanswithouttheexpresswrittenpermissionofASUSTeK
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 shallASUS be liable for any loss or profits, loss of
business, loss of use or data, interruption of business, or for indirect, special, inci-
dental, 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 andAcrobat 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.

ASUS C-P55T2D User's Manual III
ASUS CONTACT INFORMATION
ASUSTeK COMPUTER INC.
Marketing Info:
Address: 150 Li-Te Road, Peitou, Taipei, Taiwan, ROC
Telephone: [phone]
Fax: [phone]
Email: [email protected]
Technical Support:
Fax: [phone]
BBS: 886-2-896-4667
Email: [email protected]
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: [email protected]
Technical Support:
BBS: 1-408-474-0569
Email: [email protected]
ASUS COMPUTER GmbH
Marketing Info:
Address: Harkort Str. 25, 40880 Ratingen, BRD, Germany
Telephone: [phone]
Fax: [phone]
Email: [email protected]
Technical Support:
BBS: 49-2102-448690
Email: [email protected]

ASUS C-P55T2D User's Manual
IV
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

ASUS C-P55T2D User's Manual V
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
VI
FederalCommunications 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 installa-
tion. 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 inter-
ference 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: Theuseofshieldedcablesforconnectionofthemonitortothegraphics
card is required to assure compliance with FCC regulations. Changes or modifica-
tions to this unit not expressly approved by the party responsible for compliance
could void the user's authority to operate this equipment.
CanadianDepartment of CommunicationsStatement
This digital apparatus does not exceed the Class B limits for
radio noise emissions from digital apparatus set out in the Radio Interference Regu-
lations of the Canadian Department of Communications.
FCC & DOC COMPLIANCE

ASUS C-P55T2D User’s Manual 1
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
√This user's manual
I. INTRODUCTION
(Manual / Checklist)

2ASUS C-P55T2D User’s Manual
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.
•VersatileProcessorSupport: IntelPentium
®
75-233MHz(P55C-MMX
™
,P54C/
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.
•ErrorChecking and Correcting (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.
Parts of the CPU Card
(Features)
II. FEATURES
PS/2 Mouse
PS/2 Keyboard
3V-CPU Vcore
Voltage Selection
JP1
CPU Fan Power
JP14
APIC Dual CPU Selection
Freq. Ratio
JP15
JP16
CPU Fan Power
JP20
CPU Vcore
Voltage Selection
12 543
Processor 2
CPU ZIF Socket 7 CPU ZIF Socket 7
Processor 1
Map of the CPU Card
PS/2
Mouse
PS/2
Keyboard
Dual ZIF Socket 7
Intel 430HX PCIset

ASUS C-P55T2D User’s Manual 3
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.
CPU : BUS Frequency Ratio
Complete Names:
Intel Pentium P54C, P55C-MMX
AMD K5, K6
IBM/Cyrix 6X86, 6x86MX
P54C/K5
P55C/K6/MX
IBM/Cyrix6X86
3.0x(3/1)
3.0x(3/1)
4.0x(4/1)
2.5x(5/2)
2.5x(5/2)
1.0x(1/1)
2.0x(2/1)
2.0x(2/1)
2.0x(2/1)
1.5x(3/2)
3.5X(7/2)
3.0x(3/1)
1
2
JP15
JP16
3/2 2 5/2 3
Setthejumpersby theInternalspeedof theIntelPentium orcompatibleCPUs 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]
CPU External Clock (BUS) Frequency Selection
60MHz
JP2 JP3
1
2
3
66MHz
JP2 JP3
1
2
350MHz
JP2 JP3
1
2
3
III. INSTALLATION
(Jumpers)
WARNING: The CPU and/or motherboard will overheat if there is no
airflow across the CPU and onboard heatsinks.

4ASUS C-P55T2D User’s Manual
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 volt-
age 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)
Single Power Plane CPU Voltage Selection
1
2
P54C/CS
(STD 3.4V) Default
JP13
2
1
3
2
1
JP1
P54C/CS/K5/6x86
(VRE 3.5V)
2.x Volt CPU Vcore Voltage Selection (JP20: 1-5)
Dual Power Plane CPU Voltage Selection
JP20
P55C/6x86MX (2.8V)
1
2
12 543 12 543
JP20
K6-PR233 (3.2V)
JP20
K6-PR166/200 (2.9V)
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] ----- ----- ----- ----- -----
JP20 ----- ----- [Short1] [Short2] [Short3] [Short4] [Short5]
IMPORTANT: When installing only one processor, you must use the
“Processor 1” CPU ZIF Socket.
(Jumpers)
III. INSTALLATION