PEAK 637 User‘s Guide
PEAK 637
Single Board Computer
User′′′′s Guide
@Copyright 2000
All Rights Reserved
Manual edition 1, May 2001
The information in this document is subject to change without prior notice
in order to improve reliability, design and function and does not represent commitment on
the part of the manufacturer.
In no event will the man ufacturer be liable for dire ct, indirect, special, incidental, or
consequential damages arising out of the use or the possibility of such damages.
This document contains proprietary information protected by copyright. All rights are
reserved. No part of this manual may be reproduced by any me chanical, electronic, or other
means in any form without prior written permission of the manufacturer.
Trademarks
PEAK 637 is registered trademarks of NE XCOM Co., Ltd., IBM PC is a registere d trademark of
International Business Machines Corporation. Intel and Pentium III are registered
trademarks of Intel Corporation. Award is a registered trademar k of Award Software, Inc.
Other product names mentioned herein are us ed for identification purposes o nly and may be
trademarks and/or registered trademarks of their respective companies.
Specification 1-1
PEAK 637 User‘s Guide
Chapter 1: Specification
The PEAK 637 is a full size Single Board Computer. It applies single Socket 370 FC-PGA based
processor, supporting both 66 MHz (Celeron) and 100 MHz (Pentium III) FSB CPU up to 850 M+Hz and
future Intel 100MHZ FSB CPU to 1GHZ or 1.1GHZ. The memory it can accommodate is 512 MB
SDRAM up to 100 MHz.
PEAK 637 will be offered at extraordinary good pricing while also equip with powerful features.
System architecture
Full size SBC with PCI/ISA Gold finger
Intel Brand New Socket 370 Celeron/Pentium III with 66/100MHz FSB
PCI V2.1 complied
PICMG 1.0 (Rev.2.0) complied
CPU Support
Intel Celeron/Pentium III (FC-PGA) CPU with 128/256 cache on die up 850MHz, and future Intel
100MHZ FSB CPU to 1GHZ or 1.1GHZ
Supports streaming SIMD instruction
Main Memory
Support SDRAM up to 512MB (Max.)
168 pin DIMM socket ×2
BIOS
Award System BIOS
Chip Set
Intel 82440BX AGP set
66/100MHz FSB support
PCI V2.1 complied
On Board RTC
High precision real time clock/calendar with battery back up
Watchdog Timer
1, 2, 4 ….. 64 seconds time-out intervals
Specification 1-2
PEAK 637 User‘s Guide
On Board I/O
Winbond 83977 Super I/O ON BOARD
IDE Enhanced IDE mode 4, UltraDMA33, Two 40-pin connectors on the board.
FDD Supports FDD, One 34-pin connector on the board.
Serial Port Two serial ports
COM1 9-pin D-sub connector at the I/O bracket
COM2 10-pin flat-cable connector on the board
Parallel Port Bi-directional SPP/EPP/ECP support, One 26-pin connector on board
Keyboard One PS/2-type connector
Mouse One PS/2-type connector
USB Supports 2 USB channels (share one USB power fuse, 6pin header)
Dimensions
338 mm (D) * 122 mm (W)
Power Requirements
+5V：10A (Max.)
+12V: 500mA (Max.)
-12V: 50mA (Max.)
Environments
Operating temperatures: -10°C to 60°C
Storage temperatures: -40°C to 80°C
Relative humidity: 5 ~ 95%RH (no-condensing))
Certification
FCC Class A, CE marking
Operating System
Supports DOS 6.X and above, Windows NT, Windows 95 and 98, WindowsMe, Windows2000,
Specification 1-3
PEAK 637 User‘s Guide
Chapter 2 Switches and Connectors
This chapter gives the definitions and shows where to locate the positions of switches and
connectors.
Connector Function
J1 CPU Fan Header
J2 SMBUS Connector
J3, J4 DIMM Socket
J8 Primary IDE Connector
J9 Secondary IDE Connector
J10 Reset Connector
J12 ATX Power Connector
J13 IDE Active LED
J15 Parallel Connector
J16 ATX Power Button
J17 FDD Connector
J18 Speaker Connector
J19 USB Connector
J20 External Keyboard Connector
J21 MOUSE Connector
J22 KEYBOARD Connector
J23 COM2
J24 COM1
J25 Wake On LAN Connector
JP3 Key Lock
JP5 IR Connector
J16: ATX Power Button
PIN No. Description
1 +3.3V
2 PWRBT#
RTC Clear
JP4
Enabled 1-2
*Disabled N/C
Jumper Setting and Pin Assignment 2-1
PEAK 637 User‘s Guide
AT/ATX FUNCTION SELECT
*AT Function ATX Function
JP2 *1-2 2-3
J11 *1-2 2-3
J10: Reset Connector
PIN No. Description
1 RESET
2 GND
J12 ATX Power Connector
PIN No. Description
1 5VSB
2 GND
3 Power On#
J13: IDE Active LED
PIN No. Description
1 +5V
2 ACTIVE#
J1: CPU Fan Header Connector
PIN No. Description
1 GND
2 +12V
3 Sense
J8 /J9: IDE Connector
PIN No. Description PIN No. Description
1 Reset# 2 Ground
3 Data 7 4 Data 8
5 Data 6 6 Data 9
7 Data 5 8 Data 10
9 Data 4 10 Data 11
11 Data 3 12 Data 12
13 Data 2 14 Data 13
15 Data 1 16 Data 14
17 Data 0 18 Data 15
19 Ground 20 N/C
21 DMA REQ 22 Ground
23 IOW# 24 Ground
25 IOR# 26 Ground
27 IOCHRDY 28 Ground
29 DMA ACK 30 Ground
31 Interrupt 32 NC
33 SA1 34 N/C
35 SA0 36 SA2
37 HDC CS1# 38 HDC CS3#
39 HDD Active# 40 Ground
Jumper Setting and Pin Assignment 2-2
PEAK 637 User‘s Guide
J2: SMBUS Connector
PIN No. Description
1 SMBCLK
2 SMBDATA
J15: Parallel Port Connector
PIN No. Description PIN No. Description
1 Strobe# 2 Data 0
3 Data 1 4 Data 2
5 Data 3 6 Data 4
7 Data 5 8 Data 6
9 Data 7 10 Acknowledge
11 Busy 12 Paper Empty
13 Printer Select 14 Auto Form Feed#
15 Error# 16 Initialize
17 Printer Select IN# 18 Ground
19 Ground 20 Ground
21 Ground 22 Ground
23 Ground 24 Ground
25 Ground 26 N/C
J17: FDD Connector
PIN No. Description PIN No. Description
1 Ground 2 Density Select
3 Ground 4 N/C
5 N/C 6 Drate0
7 Ground 8 Index#
9 Ground 10 Motor Enable A#
11 Ground 12 Drive Select B#
13 Ground 14 Drive Select A#
15 Ground 16 Motor Enable B#
17 Ground 18 Direction#
19 Ground 20 Step#
21 Ground 22 Write Data#
23 Ground 24 Write Gate#
25 Ground 26 Track 0#
27 Ground 28 Write Protect#
29 N/C 30 Read Data#
31 Ground 32 Head Side Select#
33 Ground 34 Disk Change#
J18: Speaker Connector
PIN No. Description
1 +5V
2 GND
3 GND
4 Speaker Signal
Jumper Setting and Pin Assignment 2-3
PEAK 636F User‘s Guide
J19: USB Connector
PIN No. Description
1 +5V
2 USBD03 USBD0+
4 USBD15 USBD1+
6 GND
J20: External Keyboard Connector
PIN No. Description
1 Keyboard Clock
2 Keyboard Data
3 N/C
4 GND
5 +5V
J21: Mouse Connector
PIN No. Description
1 MOUSE DATA
2 N/C
3 GND
4 5V
5 MOUSE CLK
6 N/C
J22: Keyboard Connector
PIN No. Description
1 KBDATA
2 N/C
3 GND
4 5V
5 KBCLK
6 N/C
J23/J24: RS232 Connector
PIN No. Description
1 Data Carrier Detect (DCD)
2 Receive Data (RXD)
3 Transmit Data (TXD)
4 Data Terminal Ready (DTR)
5 Ground (GND)
6 Data Set Ready (DSR)
7 Request to Send (RTS)
8 Clear to Send (CTS)
9 Ring Indicator (RI)
Jumper Setting and Pin Assignment 2-4
PEAK 636F User‘s Guide
J25: Wake On LAN Connector
PIN No. Description
1 5VSB
2 GND
3 PME#
JP3: KEYLOCK Connector
PIN No. Description
1 VCC
2 N/C
3 GND
4 KEYLOCK
5 GND
JP5: IR Connector
PIN No. Description
1 5V
2 IRRXH
3 IRRX
4 GND
5 IRTX
Jumper Setting and Pin Assignment 2-5
PEAK 636F User‘s Guide
Note: Watch Dog Timer
Watch Dog Timer Working Procedure
The Watch Dog Timer (WDT) is the special hardware device. The WDT function
is to monitor the c omputer system whe ther work normally, o therwise, it will
have some measures to fix up the system.
It contains a receivable SQW signal from RTC, and coul d set time and can clear
the counter function. When time is up, WDT can send Reset or NMI signal.
Operator has to write a value into WDT Configuration Register (Write the control
value to the Configuration Port), and clear WDT counter (read the Configuration
Port).
Watch Dog Timer character and function
WDT Configuration port F2 Default at F2
Watch Dog Timer Disabled 1. Default at disabled
Enabled 2. Enabled for user′s programming
WDT Time out active for Reset Default at Reset
NMI
WDT Active Time 1 sec
2 sec
4 sec
8 sec
16 sec
32 sec
64 sec
Default at 64 sec
Jumper Setting and Pin Assignment 2-6
PEAK 636F User‘s Guide
Watch Dog Timer Control Register
The Watch Dog Timer Control Register is to control the WDT working mode. You can
write the value to WDT Configuration Port.
The following is the Control Register bit definition.
7 6 5 4 3210
X
x X
111 : N/A
110 : Select
101 : Select
100 : Select
011 : Select
010 : Select 16 second
001 : Select 32 second
000 : Select 64 second
1 : Enable watch dog timer
0 : Disable watch dog timer
1 : Select NMI
0 : Select Reset
Don’t care
1 second
2 second
4 second
8 second
Watch Dog Timer Programming Procedure
•••• Power on or reset the system
The initia l valu e o f W DT C ont ro l Re gist er (D4 ~D0 ) is z er o, when pow er is on or re se t
the system. The following means the initial value of WDT ( 00000000b ) :
Bit Value Mean
4 0 Select Reset
3 0 Disable watch dog timer
2, 1, 0 0 0 0 Select 64 second
•••• Initialize the SQW of RTC (set SQW output period=0.5 second)
To initialize the SQW of RTC processor is to set the SQW signal which is output
period=0.5 second. It offers the basic frequency of the WDT counter.
The followi ng is an exampl e of initializing the SQW signal program in Intel 8086
assembly language.
Jumper Setting and Pin Assignment 2-7
PEAK 636F User‘s Guide
; (Generate SQW = 0.5 Sec.)
Mov dx, 70h
Mov ax, 0Ah
Out dx, al ; Out port 70h = 0Ah
Mov dx, 71h
Mov ax, 2Fh
Out dx, al ; Out port 71h = 2Fh
; (enable the SQW output)
Mov dx, 70h
Mov ax, 0Bh
Out dx, al ; Out port 70h = 0Bh
Mov dx, 71h
Mov ax, 0Ah
Out dx, al ; Out port 71h = 0Ah
•••• Clear the WDT
Repeatedly read WDT Configuration Port and the interval cannot be longer than the
pres et time, otherwise, the WDT will gene rate NMI or Reset signal for the system .
The following is an example of clear the WDT program in Intel 8086 assembly
language.
; ( Clear the WDT)
Mov dx, F2h ;Setting the WDT configuration port
In al, dx
Note: Before running WDT , yo u must clear the W DT. I t me ans to make sur e the initial
value is zero before enab ling the WDT.
•••• WDT Control Register (Write to WDT configuration port)
You can set the WDT Control Register to control the WDT working mode.
The initial value of the WDT Control Register is as the following.
; (Setting the WDT Control Register as AL)
Mov al, 0h ; Setting initial value = 0 for the WDT Control Reg ister
You must plan the option of following:
1. Select NMI or Reset: decide D4 value in F2.
i.e. Setting D4 = 0, then it select Reset
AND al, 11101111b ; Select Reset
i.e. Setting D4 = 1, then it select NMI
OR al, 00010000b ; Select NMI
2. Select the time-out intervals of WDT (decide the values of D2, D1, D0 in F2 )
Example: D2~D0 = 0, the time- out interval will be 64 sec.
AND al, 11111000b ; Setting the time-out interval as 64 sec.
3. Enable or Disable the WDT ( decide D3 value in F2)
i.e. D3=0, Disable the WDT
AND al, 11110111b ; Disable the WDT
i.e. D 3=1, Enable the WDT
OR al, 00001000b ; Enable the WDT
Jumper Setting and Pin Assignment 2-8
PEAK 636F User‘s Guide
After finishing the above setting, you must be output for the Contro l Register’s value to
the WDT Configuration Port. Then WDT will st art according to the above setting.
MOV dx, F2h ; Setting WDT Configuration Port
OUT dx, al ; Output the Control Register Value
• You should build in a mechanism in the prog ram to continue to re ad the WDT
Configuration Port for clearing WDT before the time out.
Jumper Setting and Pin Assignment 2-9
PEAK 637 User‘s Guide
Chapter 3 AWARD BIOS Setup
Award's BIOS ROM has a built-in Setup program that allows users to modify the basic system configuration.
This type of information is stored in battery-backed RAM (CMOS RAM) so that it retains the Setup information
when the power is turned off.
Note: The picture in this document is subject to change without prior notice
Entering Setup
Power on the computer and press <Del> imm ediately will allow you to enter Setup. The other way to enter
Setup is to power on the computer, when the below message appear s briefly at the bottom of the screen
during the POST (Power On Self T est), press <Del> k ey or simultaneously press <Ctrl>, <Alt>, and <Esc>
keys.
TO ENTER SETUP BEFORE BOOT PRESS <CTRL-ALT-ESC> OR <DEL> KEY
If the message disappears before you respond and you still wish to enter Setup, restart the system to try again
by turning it OFF then ON or pressing the "RESET" button on the system c ase. You may also restart by
simultaneously pressing <Ctrl>, <Alt>, and <Delete> keys. If you do not press the keys at the correct time and
the system does not boot, an error message will be displayed and you will again be asked to,
PRESS <F1> TO CONTINUE, <CTRL-ALT-ESC> OR <DEL> TO ENTER SETUP
Control Keys
Up arrow Move to previous item
Down arrow Move to next item
Left arrow Move to the item in the left hand
Right arrow Move to the item in the right hand
Esc key Main Menu -- Quit and not save changes into CMOS
Status Page Setup Menu and Option Page Setup M enu -- Ex it current page and return to M ain
Menu
PgUp / “+” key Increase the numeric value or make changes
PgDn / “−“ key
F1 key General help, only for Status Page Setup Menu and Option Page Setup Menu
(Shift)F2 key Change color from total 16 colors. F2 to select color forward, (Shift) F2 to select color
F3 key Reserved
F4 key Reserved
F5 key Restore the previous CMOS value from CMOS, only for Option Page Setup Menu
F6 key Load the default CMOS value from BIOS default table, only for Option Page Setup Menu
F7 key Load the Setup default , only for Option Page Setup Menu
F8 key Reserved
F9 key Reserved
F10 key Save all the CMOS changes, only for Main Menu
Decrease the numeric value or make changes
backward
BIOS Setup 3-1
PEAK 637 User‘s Guide
Getting Help
Main Menu
The on-line description of the highlighted setup function is displayed at the bottom of the screen.
Status Page Setup Menu/Option Page Setup Menu
Press F1 to pop up a small help window that describes the appropriate keys to use and the possible selections
for the highlighted item. To exit the Help Window press <F1> or <Esc>.
The Main Menu
Once you enter Award BIOS CMOS Setup Utility, the Main Menu (Figure 1) will appear on the screen. The
Main Menu allows you to select from ten s etup functions and two exit choices. Use arrow keys to select
among the items and press <Enter> to accept or enter the sub-menu.
Standard CMOS Setup
This setup page includes all the items in a standard compatible BIOS.
BIOS Features Setup
This setup page includes all the items of Award special enhanced features.
Chipset features setup
This setup page includes all the items of chipset special features.
Power Management setup
This category determines how much power consumption for system after selecting below items..
PNP/PCI Configuration
This category specifies the assignment of all the IRQ’s and DMA’s
BIOS Setup 3-2
PEAK 637 User‘s Guide
Load BIOS defaults
BIOS defaults indicates the m ost appropriate value of the system par ameter which the system would be in
minimum performance. The OEM manufacturer may change the defaults through MODBIN before the binary
image burn into the ROM.
Load setup defaults
Chipset defaults indicates the values required by the system for the maximum performance. The OEM
manufacturer may change to defaults through MODBIN before the binary image burn into the ROM.
Integrated Peripherals
This category allows you to set up all the on board I/O controllers like IDE, SCSI, FDC, etc,.
Supervisor/User Password
Change, set, or disable password of supervisor or user. It allows you to limit access to the system and Setup,
or just to Setup.
IDE HDD auto detection
Automatically configure hard disk parameters.
Save & exit setup
Save CMOS value changes to CMOS and exit setup.
Exit without save
Abandon all CMOS value changes and exit setup.
BIOS Setup 3-3
PEAK 637 User‘s Guide
Standard CMOS Setup Menu
The items in Standard CMOS Setup Menu are divided into 10 categories. Each category includes no, one or
more than one setup items. Use the arrow keys to highlight the item and then use the <PgUp> or <PgDn>
keys to select the value you want in each item.
Date
The date format is <day>, <date> <month> <year>. Press <F3> to show the calendar.
day The day of week, from Sun to Sat, determined by the BIOS, is read only
date The date, from 1 to 31 ( or the maxim um allowed in the m onth), can key in the
numerical / function key
month The month, Jan through Dec
year The year, depend on the year of BIOS
Time
The time format is <hour> <minute> <second>. which accepts both function key or numerical key The time is
calculated based on the 24-hour military-time clock. For example, 1 p.m. is 13:00:00.
Primary Master/Primary Slave/Secondary Master/Secondary Slave
The categories identify the types of 2 channels that have been installed in the computer.
If a hard disk has not been installed select NONE and press <Enter>.
Drive A type/Drive B type
The category identifies the types of floppy disk drive A or drive B that have been installed in the computer.
None No floppy drive installed
360K, 5.25 in 5-1/4 inch PC-type standard drive; 360 kilobyte capacity
1.2M, 5.25 in 5-1/4 inch AT-type high-density drive; 1.2 megabyte capacity
720K, 3.5 in 3-1/2 inch double-sided drive; 720 kilobyte capacity
1.44M, 3.5 in 3-1/2 inch double-sided drive; 1.44 megabyte capacity
2.88M, 3.5 in 3-1/2 inch double-sided drive; 2.88 megabyte capacity
Floppy 3 Mode Support:
The category determines whether the floppy 3 mode support is enabled or not.
BIOS Setup 3-4
PEAK 637 User‘s Guide
LCD&CRT:
On board VGA select display type.
Type Function
CRT Boot from CRT only
LCD Boot on LCD only
BOTH Boot both LCD and CRT
AUTO Boot on CRT or LCD
Error halt
The category determines whether the computer will stop if an error is detected during power up.
No Errors Whenever the BIOS detects a non-fatal error the system will be stopped and you will be
prompted.
All Errors The system boot will not be stopped for any error that may be detected.
All, But Keyboard The system boot will not stop for a keyboard error; it will stop for all other errors.
All, But Diskette The system boot will not stop for a disk error; it will stop for all other errors.
All, But Disk/Key The system boot will not stop for a keyboard or disk error; it will stop for all other errors.
Memory
The category is display-only which is determined by POST (Power On Self Test) of the BIOS.
Base Memory
The POST of the BIOS will determ ine the am ount of bas e (or c onventional) m em ory installed in the system.
The value of the base memory is typically 512K for systems with 512K memory installed on the motherboard,
or 640K for systems with 640K or more memory installed on the motherboard.
Extended Memory
The BIOS determines how much extended memory is present during the POST. This is the amount of
memory located above 1MB in the CPU's memory address map.
Other Memory
This refers to the memory located in the 640K to 1024K address space. This is memory that can be used for
different applications. DOS us es this area to load device drivers to keep as m uch base memory free for
application programs. Most use for this area is Shadow RAM.
Total Memory
System total memory is the sum of basic memory, extended memory, and other memory.
BIOS Setup 3-5
PEAK 637 User‘s Guide
BIOS Features Setup Menu
Virus Warning
This category flashes on the screen. During and af ter the s ystem boots up, any attempt to write to the boot
sector or partition table of the hard disk drive will halt the system and the following error message will appear,
in the mean time, you can run an anti-virus program to locate the problem.
Enabled Activates automatically when the system boots up causing a warning message to appear when
Disabled No warning message to appear w hen any thing attempts to access the boot sector or hard disk partition
Note: This function is available only for DOS and other OSes that do not trap INT13.
! WARNING !
Disk boot sector is to be modified
Type "Y" to accept write or "N" to abort write
Award Software, Inc.
anything attempts to access the boot sector or hard disk partition table.
table.
CPU Internal Cache/External Cache
These two categories speed up m em ory access. However, it depends on CPU/chipset des ign. The default
value is Enabled. If your CPU has no Internal Cache then this item “CPU Internal Cache” will not be shown.
Enabled Enable cache
Disabled Disable cache
CPU L2 Cache ECC Checking
This category could turn on the ECC of Pentium III L 2 Cache or just disable it.
Enabled Enable L2 ECC
Disabled Disable L2 ECC
BIOS Setup 3-6
PEAK 637 User‘s Guide
Quick Power On Self Test
This category speeds up Power On Self Test (POST) after you power on the computer. If it is set to Enabled,
BIOS will shorten or skip some check items during POST.
Enabled Enable quick POST
Disabled Normal POST
Boot Sequence
This category determines which drive computer searches first for the disk operating system ( i.e., DOS).
Default value is A,C.
A, C, SCSI Default
C, A, SCSI
C, CDROM, A
CDROM, C, A
D, A, SCSI
E, A, SCSI
F, A, SCSI
SCSI, A, C
SCSI, C, A
C only
LS/ZIP, C
Swap Floppy Drive
This item allows you to determine whether enable the swap floppy drive or not.
The choice: Enabled/Disabled.
Boot Up Floppy Seek
During POST, BIOS will determine if the floppy disk drive installed is 40 or 80 tracks . 360K type is 40 tracks
while 760K, 1.2M and 1.44M are all 80 tracks.
Enabled BIO S searches for floppy disk drive to determine if it is 40 or 80 tracks. Note that BIOS can not tell
from 720K, 1.2M or 1.44M drive type as they are all 80 tracks.
Disabled BIOS will not search for the type of floppy disk drive by track number. Note that there will not be
any warning message if the drive installed is 360K.
Boot Up NumLock Status
The default value is On.
On Keypad is number keys
Off Keypad is arrow keys
Gate A20 Option
Normal The A20 signal is controlled by keyboard controller or chipset hardware.
Fast Default : Fast. The A20 signal is controlled by Port 92 or chipset specific method.
Typematic Rate Setting
This determines the typematic rate.
Enabled Enable typematic rate and typematic delay programming
Disabled Disable typematic rate and typematic delay programming. The system BIOS will use
default value of this 2 items and the default is controlled by keyboard.
BIOS Setup 3-7
PEAK 637 User‘s Guide
Typematic Rate (Chars/Sec)
6 6 characters per second
8 8 characters per second
10 10 characters per second
12 12 characters per second
15 15 characters per second
20 20 characters per second
24 24 characters per second
30 30 characters per second
Typematic Delay (Msec)
When holding a key, the time between the first and second character displayed.
250 250 msec
500 500 msec
750 750 msec
1000 1000 msec
Security Option
This category allows you to limit access to the system and Setup, or just to Setup.
System The system will not boot and access to Setup will be denied if the correct password is not entered
at the prompt.
Setup The system will boot, but access to Setup will be denied if the correct password is not entered at
the prompt.
Note: To disable security, select PASSWORD SET TING at Main Menu and then you will be asked to enter
password. Do not type anything and just press <Enter>, it will disable security. Once the security is disabled,
the system will boot and you can enter Setup freely.
PCI/VGA Palette Snoop
Enable PCI controller support PCI/VGA palette snoop or not, if enabled, VGA cycle will transfer to ISA bus. If
disabled, VGA cycle only transfer to PCI bus.
OS Select for DRAM 64MB
This segment is specific ally created for OS/2 when DRAM is larger than 64MB. If your operating system is
OS/2 and DRAM used is larger the 64MB, you have to select “OS 2”, otherwise, non-OS2, default is
NON-OS2.
Video BIOS Shadow
It determines whether video BIOS will be copied to RAM, however, it is optional from chipset design. Video
Shadow will increase the video speed.
Enabled Video shadow is enabled
Disabled Video shadow is disabled
C8000 - CFFFF Shadow/D8000 - DFFFF Shadow
These categories determine whether optional ROM will be copied to RAM by 16K byte or 32K byte per/unit and
the size depends on chipset.
Enabled Optional shadow is enabled
Disabled Optional shadow is disabled
BIOS Setup 3-8
PEAK 637 User‘s Guide
Note:
1. For C8000-DFFFF option-ROM on PCI BIOS , BIOS will automatically enable the shadow RAM. User does
not have to select the item.
2. IDE second channel control:
Enable : enable secondary IDE port and BIOS will assign IRQ15 for this port. Disable: disable
secondary IDE port and IRQ15 is available for other device. The item is optional only for PCI BIOS.
3. Some of the sound cards have an onboard CD-ROM controller which uses IDE Secondary Port. In order to
avoid PCI IDE conflict, the IDE secondary channel control has to select “disable” then CD-ROM can work.
BIOS Setup 3-9
PEAK 637 User‘s Guide
Chipset Features Setup Menu
Since the features in this section are related to the chipset in the CPU board and all are optimized, you are not
recommended to change the default settings in the setup table, unless you know very detailed of the chipset
features.
Auto Configuration
Auto Configuration selects predeterm ind optional values of chipset parameters. W hen Disabled, chipest
parameters revert to setup information stored inCMOS. Many fields in this screen are not available when Auto
Configuration is Enabled. The Choice: Enabled, Disabled.
EDD DRAM Speed Selection
The DRAM timing is controlled by the DRAM Timing Registers. The timings programmed into this register are
dependent on the system design. Slower rates may be required in certain s ystem designs to s upport loose
layouts or slow memory.
50ns DRAM Timing Type
60ns DRAM Timing Type
EDO CASx# MA Wait State
You could select the timing control type of EDO DRAM CAS MA (memory address bus). The Choice: 1, 2.
EDO RASx# Wait State
You could select the timing control type of EDO DRAM RAS MA (memory address bus). The Choice: 1, 2.
SDRAM RAS-to-CAS Delay
BIOS Setup 3-10
PEAK 637 User‘s Guide
You can select RAS to CAS Delay time in HCLKs of 2/2 or 3/3. The system board designer should set the
values in this field, depending on the DRAM installed. Do not change the values in this fiels unless you change
specifications of the installed DRAM or the installed CPU. The Choice: 2, 3.
SDRAM RAS Precharge Time
Defines the length of time for Row Address Strobe is allowed to precharge. The Choice: 2, 3.
SDRAM CAS latency Time
You can select CAS latency time in HCLKs of 2/2 or 3/3. The system board designer should set the values in
this field, depending on the DRAM installed. Do not change the values in this field unless you change
specifications of the installed DRAM or the installed CPU.
DRAM Data Integrity Mode
Select Parity or ECC (ERROR-CORRECTING CODE), according to the type of installed DRAM.
System Bios Cacheable
Select Enabled allows caching of the system BIOS ROM at F000h-FFFFFh, resulting in better system
performance. However, if any program writes to this memory area, a system error may result
Enabled BIOS access cached
Disabled BIOS access not cached
Video BIOS Cacheable
Select Enable allows caching of the video BIOS ROM AT C0000h-F7FFFh, resulting in better video
performance. However, if any program writes to this memory area, a system error may result
Enabled Video BIOS access cached
Disabled Video BIOS access not cached
Video RAM Cacheable
Select Enabled allows caching of the video RAM, resulting in better s ystem performanc e. However, if any
program writes tothis memory area, a system error may result.
8 Bit I/O Recovery Time
The recovery time is the length of time, measured in CPU clocks, which the system will delay after the
completion of an input/output request. This delay takes place because the CPU is operationg so much faster
than the input/output bus that the CPU must be delayed to allow for the completion of the I/O. This itm allows
you to detemine the recovery time allowed for 8 bit I/O. Choices are from NA, 1 to 8 CPU clocks.
16 Bit I/O Recovery Time
This item allows you to determine the recovery time allowed for 16 bit I/O. Choices are from NA, 1 to 4 CPU
clocks
Memory Hole At 15M-16M.
In order to improve performance, certain space in memory can be reserved for ISA cards.. This memory must
be mapped into the memory space below 16 MB.
Enabled Memory hole supported.
Disabled Memory hole not supported
Passive Release
When Enabled, CPU to PCI bus ac cesses are allowed druing passive r elease. Othersiwe, the arbiter only
accepts another PCI master access to local DRAM. The Choice: Enabled, Disabled.
BIOS Setup 3-11
PEAK 637 User‘s Guide
Delay Transaction
The chipset has an embeded 32-bit posted write buffer to support delay transactions cycles.. Select Enabled
to support compliance with PCI specification version 2.1
AGP Aperture Size (MB)
Select the size of the Accelerated Graphics Port (AGP) aperture. The aperture is a
portion of the PCI memory address range dedicated for graphics memory address space.
Host cycles that hit the aperture range are forwarded to the AGP without any translation.
The choice: 4, 8, 16, 32, 64, 128, 256
Auto Detect DIMM/PCI Clk
When enabled, this item will auto detect if the DIMM and PCI socket have devices and will send clock signal to
DIMM and PCI devices. When disabled, it will send the clock signal to all DIMM and PCI socket.
The choice: Enabled, Disabled.
Spread Spectrum
This item allows you to enable/disable the spread spectrum modulate.
The choice: Enabled, Disabled.
CPU Host Clock (CPU / PCI )
This item allows you to slightly adjust the clock frequency.
The choice: 66MHZ~100MHZ.
BIOS Setup 3-12
PEAK 637 User‘s Guide
Power Management Setup
The Power management setup will appear on your screen like this:
ACPI Function
This item allows you to Enable/Disable the Advanced Configuration and Power Interface (ACPI).
The Choice: Enabled, Disabled.
Power Management
This category allows you to select the type (or degree) of power saving and is directly related to the following
modes:
1. Doze Mode
2. Standby Mode
3. Suspend Mode
4. HDD Power Down
There are four selections for Power Management, three of which have fixed mode settings.
Disabled (default) No power management. Disables all four modes
Min. Power Saving Minimum power management. Doze Mode = 1 hr. Standby Mode = 1 hr.,
Max. Power Saving Maximum power management. Doze Mode = 1 min., Standby Mode = 1 min.,
User Define Allows you to set each mode individually. When not disabled, each of the
Suspend Mode = 1 hr., and HDD Power Down = 15 min.
Suspend Mode = 1 min., and HDD Power Down = 1 min.
ranges are from 1 min. to 1 hr. except for HDD Power Down which ranges from
1 min. to 15 min. and disable.
PM Control by APM
When enabled, an Advanced Power Management device will be activated to enhance the Max. Power Saving
mode and stop the CPU internal clock.
If the Max. Power Saving is not enabled, this will be preset to No.
Video Off Method
This determines the manner in which the monitor is blanked.
V/H SYNC+Blank This selection will cause the system to turn off the vertical and horizontal
synchronization ports and write blanks to the video buffer.
Blank Screen This option only writes blanks to the video buffer.
BIOS Setup 3-13
PEAK 637 User‘s Guide
DPMS Initial display power management signaling.
Video Off After
When enabled, this feature allows the VGA adapter to operate in a power saving mode.
N/A Monitor will remain on during power saving modes.
Suspend Monitor blanked when the systems enters the Suspend mode.
Standby Monitor blanked when the system enters Standby mode.
Doze Monitor blanked when the system enters any power saving mode.
Doze Mode
When enabled and after the set time of system inactivity, the CPU clock will run at slower speed while all other
devices still operate at full speed.
Standby Mode
1. Disabled System will never enter STANDBY mode
2. 1 Min
2 Min
4 Min
6 Min
8 Min
10 Min
20 Min
30 Min
40 Min
1 Hr
Defines the continuous idle time before the system entering STANDBY mode.
if any item defined in (J) is enabled & active, STANDBY timer will be reloaded
Suspend Mode
When enabled and after the set time of system inactivity, all devices except the CPU will be shut off.
HDD Power Down
When enabled and af ter the set tim e of system inactivity, the hard disk drive will be powered down while all
other devices remain active.
Throttle Duty Cycle
When the system enters Doze mode, the CPU clock runs only part of the time.
You may select the percent of time that the clock runs.
The Choice: 12.5%, 25.0%, 37.5%, 50.0%, 62.5%, 75.0%
PCI/VGA Active Monitor
When Enabled, any video activity restarts the global timer for Standby mode.
The Choice: Enabled, Disabled.
PowerOn by Ring
An input signal on the serial Ring Indicator (RI) line (in other words, an incoming call on the modem) awakens
the system from a soft off state.
The Choice: Enabled, Disabled.
IRQ 8 Break Suspend
You can Enable or Disable monitoring of IRQ8 so it does not awaken the system from Suspend m ode. T he
Choice: Enabled, Disabled
Reload Global Timer Events
When Enabled, an event occurring on each device listed below restarts the global time for Standby mode.
IRQ[3 -7, 9-15], NMI Primary IDE 0 Primary IDE 1
Secondary IDE 0 Secondary IDE 1 Floppy Disk
Serial Port Parallel Port
.
BIOS Setup 3-14
PEAK 637 User‘s Guide
PnP/PCI Configuration
This section describes configuring the PCI bus system. PCI, or Peripheral Component Interconnect, is a
system which allows I/O devices to operate at speeds nearing the speed the CPU itself uses when
communic ating with its own special components. This sec tion covers some very technical item s and it is
strongly recommended that only experienced users should make any changes to the default settings.
PNP OS Installed
Select Yes if the system operating environment is Plug-and-Play aware (e.g.W indows 95). The Choice: Yes
and No.
Resource Controlled by
The Award Plug and Play BIOS can automatically configure all the boot and Plug and Play-compatible
devices. If you select Auto, all the interrupt request (IRQ) and DMA assignment fields disappear, as the BIOS
automatically assigns them.
The choice: Auto and Manual.
Reset Configuration Data
Normally, you leave this field Disabled. Select Enabled to reset Extended System Configuration Data (ESCD)
when you exit Setup if you have installed a new add-on and the system reconf iguration has c aused such a
serious conflict that the operating system cannot boot. The choice: Enabled and Disabled.
Assing IRQ For VGA
Assing IRQ for VGA : Enabled
Not assign IRQ for VGA : Disabled
IRQ n Assigned to
When resources are controlled manually, assign each system interrupt as one of the following types,
depending on the type of device using the interrupt:
Legacy ISA Devices compliant with the original PC AT bus specification, requiring a specific interrupt (such as
IRQ4 for serial port 1).
PCI/ISA PnP Devices compliant with the Plug and Play standard, whether designed for PCI or ISA bus
architecture.
When res ources are controlled m anually, assign each system DMA channel as one of the following types,
depending on the type of device using the interrupt:
Legacy ISA Devices compliant with the original PC AT bus specification, requiring a specific DMA channel
BIOS Setup 3-15
PEAK 637 User‘s Guide
PCI/ISA PnP Devices compliant with the Plug and Play standard, whether designed for PCI or ISA bus
architecture.
Slot 1 use IRQ No
Assign IRQ to slot 1, 2, 3, 4 by User or Auto.
Used MEM base addr
Select a base address for the memory area used by any peripheral that requires high memory.
The Choice: C800, CC00, D000, D400, D800, DC00, N/A.
Assing IRQ For USB
Assing IRQ for USB : Enabled
Not assign IRQ for USB : Disabled
PCI Latency Timer (CLK)
Adjust PCI Latency Timer by users.
BIOS Setup 3-16
PEAK 637 User‘s Guide
Integrated Peripherals
IDE HDD Block Mode
This allows your hard disk controller to us e the fast block mode to transf er data to and f rom your hard disk
drive (HDD).
Enabled IDE controller uses block mode.
Disabled IDE controller uses standard mode.
IDE Primary/Secondary Master/Slave PIO
The four IDE PIO (Programmed Input/Output) fields let you set a PIO mode (0-4) f or each of the four IDE
devices that the onboard IDE interface supports. Modes 0 through 4 provide successively increased
performance. In Auto mode, the system automatically determines the best mode for each device.
IDE Primary/Secondary Master/Slave UDMA
Ultra DMA/33 implementation is possible only if your IDE hard drive supports it and the operating environment
includes a DMA driver (Windows 95 OSR2 or a third-party IDE bus master driver). If your hard drive and your
system software both support Ultra DMA/33, select Auto to enable BIOS support. The Choice: Auto, Disabled
On-Chip Primary/Secondary PCI IDE
The integrated peripheral controller contains an IDE interface with support for two IDE channels. Select
Enabled to activate each channel separately.
USB Keyboard support
Select Enabled if your system contains a Universal Serial Bus (USB) controller and you have a USB keyboard.
The Choice: Enabled, Disabled.
Init Display First
BIOS Setup 3-17
PEAK 637 User‘s Guide
For user to select to init AGP or PCI VGA first
KBC input clock
Set the frequency for the keyboard controller input clock
Onboard FDD Controller
This should be enabled if your system has a floppy disk drive (FDD) installed on the system board and you
wish to use it. Even when so equipped, if y ou add a higher performance controller, you will need to disable this
feature.
The Choice: Enabled, Disabled.
Onboard Serial Port 1/Port 2
This item allows you to determine access onboard serial port 1/port 2 controller with which I/O address. The
Choice: 3F8/IRQ4, 2F8/IRQ3, 3E8/IRQ4, 2F8/IRQ3, Disabled, Auto.
UART Mode Select
This item allows you to determine which Infra Red (IR) function of onboard I/O chip.
The Choice: IrDA 1.0, Standard, ASKIR, HPSIR.
RxD, TxD Active
This item allows you to determine the active of RxD, TxD. The choice: “Hi,Hi”, “Lo, Lo”, “Lo, Hi”, “Hi, Lo”
IR Transmission delay
This item allows you to enable/disable IR transmission delay. The choice: Enabled, Disabled.
Onboard Parallel Port
This item allows you to determine access onboard parallel port controller with which I/O address. The choice:
378H/IRQ7, 278H/IRQ5, 3BCH/IRQ7, Disabled.
Parallel Port Mode
Select an operating mode for the onboard parallel port. Select Compatible or Extended unless you are certain
both your hardware and software support EPP or ECP mode.
The choice: SPP, ECP+EPP1.7, EPP1.7+SPP, EPP1.9+SPP, ECP, ECP+EPP1.9, and Normal.
ECP Mode Use DMA
Select a DMA channel for the port.
The choice: 3, 1.
EPP Mode Select
Select EPP port type 1.7or 1.9
The choice: EPP1.7, 1.9
BIOS Setup 3-18
PEAK 637 User‘s Guide
Supervisor/User Password Setting
You can set either supervisor or user password, or both of then. The differences between are:
supervisor password : can enter and change the options of the setup menus.
user password : just can enter but do not have the right to change the
options of the setup menus.
When you select this function, the following message will appear at the center of the screen to assist you in
creating a password.
ENTER PASSWORD:
Type the password, up to eight characters in length, and press <Enter>. The password typed now will clear
any previously entered password from CMOS memory. You will be asked to confirm the password. Type the
password again and press <Enter>. You may also press <Esc> to abort the selection and not enter a
password.
To disable a password, just press <Enter> when you are prompted to enter the password. A message will
confirm the password will be disabled. Once the password is disabled, the system will boot and you can enter
Setup freely.
PASSWORD DISABLED.
When a password has been enabled, you will be prompted to enter it every time you try to enter Setup. This
prevents an unauthorized person from changing any part of your system configuration.
Additionally, when a password is enabled, you can also require the BIOS to request a password every time
your system is rebooted. This would prevent unauthorized use of your computer.
You determine when the password is required within the BIOS Features Setup Menu and its Security option
(see Section 4). If the Security option is set to “System”, the password will be required both at boot and at
entry to Setup. If set to “Setup”, prompting only occurs when trying to enter Setup.
IDE HDD Auto Detection
The enhance IDE features was included in all Award BIOS. Will auto detect the HDD type.
Note:
To support LBA or LARGE mode of HDDs, there must be some softwares
involved. All these softwares are located in the Award HDD Service Routine
(INT 13h). It may be failed to access a HDD with LBA (LARGE) mode selected
if you are running under a Operating System which replaces the whole INT 13h.
Appendix: Power-On Boot
After you have made all the changes to CMOS values and the system cannot
boot with the CMOS values selected in Setup, restart the system by turning it
OFF then ON or Pressing the "RESET" button on the system case. You may
also restart by simultaneously press <Ctrl>, <Alt>, and <Delete> keys.
Upon restart the system, immediately press <Insert> to load BIOS default
CMOS value for boot up.
Appendix: BIOS Reference - POST Message
During the Power On Self Test (POST), if the BIOS detects an error requiring you to do something to fix, it will
either sound a beep code or display a message.
If a message is displayed, it will be accompanied by:
PRESS F1 TO CONTINUE, CTRL-ALT-ESC OR DEL TO ENTER SETUP
POST Beep
BIOS Setup 3-19
PEAK 637 User‘s Guide
Currently there is only one beep code in BIOS. This code indicates that a video err or has occ urred and the
BIOS cannot initialize the video screen to display any additional information. This beep code consis ts of a
single long beep followed by two short beeps.
Error Messages
One or more of the following messages may be displayed if the BIOS detects an error during the POST. This
list includes messages for both the ISA and the EISA BIOS.
CMOS BATTERY HAS FAILED
CMOS battery is no longer functional. It should be replaced.
CMOS CHECKSUM ERROR
Checksum of CMOS is incorrect. T his can indicate that CMOS has becom e corrupt. T his error may have
been caused by a weak battery. Check the battery and replace if necessary.
DISK BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER
No boot device was found. This could mean that either a boot dr ive was not detected or the drive does not
contain proper system boot files. Ins ert a system dis k into Drive A: and pres s <Enter>. If you assum ed the
system would boot from the hard drive, make sure the controller is inserted correctly and all cables are
properly attached. Also be sure the disk is formatted as a boot device. Then reboot the system.
DISKETTE DRIVES OR TYPES MISMATCH ERROR - RUN SETUP
Type of diskette drive installed in the system is different from the CMOS definition. Run Setup to reconfigure
the drive type correctly.
DISPLAY SWITCH IS SET INCORRECTLY
Display switch on the motherboard can be set to either monochrome or color. This indicates the switch is set
to a different setting than indicated in Setup. Determine which setting is correct, and then either turn off the
system and change the jumper, or enter Setup and change the VIDEO selection.
DISPLAY TYPE HAS CHANGED SINCE LAST BOOT
Since last powering off the system, the display adapter has been changed. You must configure the system for
the new display type.
EISA Configuration Checksum Error
PLEASE RUN EISA CONFIGURATION UTILITY
The EISA non-volatile RAM checksum is incorrec t or cannot corr ectly read the EISA slot. This c an indicate
either the EISA non-volatile memory has become corrupt or the slot has been configured incorrectly. Also be
sure the card is installed firmly in the slot.
EISA Configuration Is Not Complete
PLEASE RUN EISA CONFIGURATION UTILITY
The slot configuration information stored in the EISA non-volatile memory is incomplete.
Note: When either of these errors appear, the system will boot in ISA mode, which allows you to run the EISA
Configuration Utility.
ERROR ENCOUNTERED INITIALIZING HARD DRIVE
BIOS Setup 3-20
PEAK 637 User‘s Guide
Hard drive cannot be initialized. Be sure the adapter is installed correctly and all cables are correctly and firmly
attached. Also be sure the correct hard drive type is selected in Setup.
ERROR INITIALIZING HARD DISK CONTROLLER
Cannot initialize controller. Make sure the cord is correctly and firmly installed in the bus. Be sure the correct
hard drive type is selected in Setup. Also check to see if any jumper needs to be set c orrectly on the hard
drive.
FLOPPY DISK CNTRLR ERROR OR NO CNTRLR PRESENT
Cannot find or initialize the floppy drive controller. make sure the controller is installed correctly and firmly. If
there are no floppy drives installed, be sure the Diskette Drive selection in Setup is set to NONE.
Invalid EISA Configuration
PLEASE RUN EISA CONFIGURATION UTILITY
The non-volatile memory containing EISA configuration information was programmed incorrectly or has
become corrupt. Re-run EISA configuration utility to correctly program the memory.
NOTE: When this error appears, the system will boot in ISA mode, which allows you to run the EISA
Configuration Utility.
KEYBOARD ERROR OR NO KEYBOARD PRESENT
Cannot initialize the keyboard. Make sure the keyboard is attached correc tly and no keys are being pressed
during the boot.
If you are purposely configurating the system without a keyboard, set the error halt condition in Setup to HALT
ON ALL, BUT KEYBOARD. This will cause the BIOS to ignore the missing keyboard and continue the boot.
Memory Address Error at ...
Indicates a memory address error at a specific location. You can use this location along with the memory map
for your system to find and replace the bad memory chips.
Memory parity Error at ...
Indicates a mem ory parity error at a specific loc ation. You can use this loc ation along with the m emory map
for your system to find and replace the bad memory chips.
MEMORY SIZE HAS CHANGED SINCE LAST BOOT
Memory has been added or removed since the last boot. In EISA mode use Configuration Utility to
reconfigure the mem ory configuration. In ISA mode enter Setup and enter the new m emory size in the
memory fields.
Memory Verify Error at ...
Indicates an error verifying a value already written to memory. Use the location along with your system's
memory map to locate the bad chip.
OFFENDING ADDRESS NOT FOUND
This message is used in conjunction with the I/O CHANNEL CHECK and RAM PARIT Y ERROR messages
when the segment that has caused the problem cannot be isolated.
OFFENDING SEGMENT:
BIOS Setup 3-21
PEAK 637 User‘s Guide
This message is used in conjunction with the I/O CHANNEL CHECK and RAM PARIT Y ERROR messages
when the segment that has caused the problem has been isolated.
PRESS A KEY TO REBOOT
This will be displayed at the bottom screen when an error occurs that requires you to reboot. Press any key
and the system will reboot.
PRESS F1 TO DISABLE NMI, F2 TO REBOOT
When BIOS detects a Non-maskable Interrupt condition during boot, this will allow you to disable the NMI and
continue to boot, or you can reboot the system with the NMI enabled.
RAM PARITY ERROR - CHECKING FOR SEGMENT ...
Indicates a parity error in Random Access Memory.
SYSTEM HALTED, (CTRL-ALT-DEL) TO REBOOT ...
Indicates the present boot attempt has been aborted and the system must be rebooted. Press and hold down
the CTRL and ALT keys and press DEL.
Appendix: BIOS Reference - POST Codes
Note: ISA POST codes are output to port address 80h.
POST (hex) Description
C0 1. Turn off OEM specific cache, shadow...
2. Initialize all the standard devices with default values standard devices
includes:
-DMA controller (8237)
-Programmable Interrupt Controller (8259)
-Programmable Interval Timer (8254)
-RTC chip
C1 Auto-detection of onboard DRAM & Cache
C3 1. Test system BIOS checksum
2. Test the first 256K DRAM
3. Expand the compressed codes into temporary DRAM area including the
compressed System BIOS & Option ROMs
C5 Copy the BIOS from ROM into E0000-FFFFF shadow RAM so that POST will go faster
01-02 Reserved
03 Initialize EISA registers (EISA BIOS only)
04 Reserved
05 1. Keyboard Controller Self-Test
2. Enable Keyboard Interface
06 Reserved
07 Verifies CMOS’s basic R/W functionality
BE Program defaults values into chipset according to the MODBINable Chipset
Default Table
09 1. Program the configuration register of Cyrix CPU according to the
MODBINable Cyrix Register Table
2. OEM specific cache initialization (if needed)
BIOS Setup 3-22
PEAK 637 User‘s Guide
0A 1. Initialize the first 32 interrupt vectors with corresponding Interrupt handlers
Initialize INT no from 33-120 with Dummy(Suprious)
Interrupt Handler
2. Issue CPUID instruction to identify CPU type
3. Early Power Management initialization (OEM specific)
This POST code is for boot block
POST (hex) Description
C0 1. Turn off OEM specific cache, shadow...
2. Initialize all the standard devices with default values standard devices
includes:
-DMA controller (8237)
-Programmable Interrupt Controller (8259)
-Programmable Interval Timer (8254)
-RTC chip
C1 Auto-detection of onboard DRAM & Cache
C3 Checking checksum of compressed code
C5 Copy the BIOS from ROM into E0000-FFFFF shadow RAM so that POST will go faster
01 Clear base memory 0~640K
0C Initial interrupt vector 00-1FH
0D Initial ISA VGA
41H Enable FDD and detect media type
FFH Boot from FDD
BIOS Default Drive Table
This is a current list of the drive type table contained in Setup.
Type Size
(MB)
1 10 306 4 17 128 305 TEAC SD510,
2 20 615 4 17 300 615 Seagate ST225, ST4026
3 30 615 6 17 300 615
4 62 940 8 17 512 940
5 46 940 6 17 512 940
6 20 615 4 17 None 615 Seagate ST125,
7 30 462 8 17 256 511
8 30 733 5 17 None 733 Tandon TM 703
9 112 900 15 17 None 901
10 20 820 3 17 None 820
11 35 855 5 17 None 855
12 49 855 7 17 None 855
13 20 306 8 17 128 319 Disctron 526, MMI M125
14 42 733 7 17 None 733
15 Reserved
16 20 612 4 17 0 663 Microscience HH725,
17 40 977 5 17 300 977
18 56 977 7 17 None 977
19 59 1024 7 17 512 1023
20 30 733 5 17 300 732
Cylinders Heads Sectors Write
Precomp
Land
Zone
Example Model
MMI 112, 5412
Tandon TM262
Syquest 3250, 3425
BIOS Setup 3-23
PEAK 637 User‘s Guide
21 42 733 7 17 300 732
22 30 306 5 17 300 733 Seagate ST4038
23 10 977 4 17 0 336
24 40 1024 5 17 None 976 Seagate ST4051
25 76 1224 9 17 None 1023 Seagate ST4096
26 71 1224 7 17 None 1223 Maxtor 2085
27 111 1224 11 17 None 1223 Maxtor 2140, Priam S14
28 152 1024 15 17 None 1223 Maxtor 2190, Priam S19
29 68 1024 8 17 None 1023 Maxtor 1085,
Micropolis 1325
30 93 918 11 17 None 1023 Maxtor 1105 1120, 4780
31 83 925 11 17 None 1023 Maxtor 1170
32 69 1024 9 17 None 926 CDC 9415
33 85 1024 10 17 None 1023
34 102 1024 12 17 None 1023
35 110 1024 13 17 None 1023
36 119 1024 14 17 None 1023
37 17 1024 2 17 None 1023
38 136 1024 16 17 None 1023
39 114 918 15 17 None 1023 Maxtor 1140, 4380
40 40 820 6 17 None 820 Seagate ST251
41 42 1024 5 17 None 1023 Seagate 4053
Miniscribe 3053/6053
42 65 1024 5 26 None 1023 Miniscribe
3053/6053 RLL
43 40 809 6 17 None 852 Miniscribe 3650
44 61 809 6 26 None 852 Miniscribe 3675 RLL
45 100 776 8 33 None 775 Conner CP3104
46 203 684 16 38 None 685 Conner CP3204
User
BIOS Setup 3-24
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