ASUS A7N266 User Manual

® A7N266

JumperFree™ DDR DRAM

266MHz

NVIDIA® nForce 420™

Socket A

Intel	Pentium		Intel
VIA
3Com		3Com
C-Media
Windows		MS-DOS
Adobe	Acrobat		Adobe System
Trend	ChipAwayVirus
Symbios		Symbios Logic
nVidia		NVIDIA

1.22 1.24 ...

BIOS

© 2001

: A7N266

:1.00 T853

:2001 12

2

A7N266

150

886-2-2894-3447

886-2-2890-7798

[e-mail]

0800-093-456

886-2-2890-7111 ... / 886-2-2890-7112 ...

886-2-2890-7113 ... / 886-2-2890-7698

[e-mail]

cscnews.asus.com.tw

http://www.asus.com.tw/

ASUS COMPUTER INTERNATIONAL ()

6737 Mowry Avenue, Mowry Business Center, Building 2 Newark, CA 94560, USA

[phone] [e-mail]

[phone] +1-877-918-ASUS(2787)... [e-mail]

www.asus.com

ASUS COMPUTER GmbH ()

Harkortstr. 25, 40880 Ratingen, BRD, Germany

49-2102-4420-66 [e-mail]

49-2102-9599-0 ... / 49-2102-9599-10 .. 49-2102-9599-11 www.asuscom.de/de/support www.asuscom.de

A7N266

3

1.1	...........................................................................	7
1.2	.......................................................................................	7

2.1	A7N266	........................................................ 8
	2.1.1	..................................................................................................... 8
	2.1.2	..................................................................................................... 9
	2.1.3	................................................................................................... 10
2.2		.............................................................................. 12

3.

3.1	..........................................................................................			14
3.2	......................................................................................			15
3.3	..........................................................................................			16
3.4		..............................................................................		17
3.5	..............................................................................................			23
3.5.1	DDR DIMM ..................................................................................... 23
3.5.2		....................................................................................... 24
3.5.3	................................................................................................... 25
3.6	CPU	..............................................................................		26
3.7	......................................................................................................			27
3.7.1		....................................................................................... 27
3.7.2		IRQ	.......................................................... 28
3.7.3		ACR	............................................................... 29
3.7.4	AGP Pro		............................................................... 30
3.8	..............................................................................................			31
3.9	..................................................................................................			45

4

A7N266

4.BIOS

4.1	BIOS		................................................................................			47
	4.1.1			....................................................................... 47
	4.1.2 BIOS		............................................................................................. 49
4.2	BIOS	................................................................................................				51
	4.2.1 BIOS		......................................................................................... 52
	4.2.2		....................................................................................... 52
4.3	Main Menu		...............................................................................			54
	4.3.1 Primary & Secondary Master/Slave				.......................................... 55
	4.3.2		........................................................................................... 58
4.4	Advanced Menu		................................................................... 60
	4.4.1 Chip Configuration				.................................................... 63
	4.4.2 I/O Device Configuration			I/O	................................................ 65
	4.4.3 PCI Configuration PCI			.................................................................. 67
	4.4.4 Shadow Configuration				........................................................... 69
4.5	Power Menu		.........................................................................			70
	4.5.1 Power Up Control/			............................................................. 71
	4.5.2 Hardware Monitor/			............................................................ 72
4.6	Boot Menu/		...............................................................................			73
4.7	Exit Menu		.....................................................................................			75

5.

5.1	..................................................................................................			77
5.2	Windows		....................................................................	77
5.3	A7N266		......................................................	78
	5.3.1		............................................................................... 78
	5.3.2	................................................................................................... 79
	5.3.3 Windows 98		...................................................... 80

6.

6.1 .................................................................................. 82

A7N266

5

6.2		...................................................................................... 83
	6.2.1	............................................................................... 83
	6.2.2	............................................................................... 84
	6.2.3		................................................................... 87
6.3		.............................................................................. 88
	6.3.1 C-Media	........................................................................................ 88
	6.3.2 C-Media		................................................................ 88
	6.3.3	/	.......................................................................... 89
6.4	3Deep Color Tuner ................................................................................... 90
	6.4.1 3Deep	........................................................................................ 90
	6.4.2 3Deep	........................................................................................ 91
6.5	CyberLink PowerPlayer SE		.................................................... 92
	6.5.1	CyberLink PowerPlayer SE ....................................................... 92
	6.5.2 CyberLink PowerPlayer		........................................................... 92
6.6	CyberLink VideoLive Mail ...................................................................... 93
	6.6.1	VideoLive Mail ......................................................................... 94
	6.6.2 VideoLive Mail		..................................................................... 94

7.

7.1		..................................................................................................		95
7.2	56K		.....................................................................	99
	7.1.1	/	...................................................................... 99
	7.1.2		............................................................................... 99
	7.1.3	Windows 98	........................................................... 100

6

A7N266

1.

1.1

<1> <2> <3>

<4> BIOS

BIOS

<5> <6> <7>

1.2

(1)
(1) 40		80	UltraDMA/100/66/33 IDE
(1) 40		80
(1)
(1)		USB
(1)
(1)
(1)	COM 2
(1)		S/PDIF	(	)
(1)			(	)
(2)		(	)
(1)

AGP-DVI/TV

A7N266

7

2.

2.1			A7N266
		A7N266		AMD® Athlon™ XP /Athlon™		/Duron™
				nVidia®	nForce 420™
	GeForce2TM		MX
					:
	2.1.1		AMD Athlon™	XP /Athlon™	Duron™
	•
		/ Duron™	Socket A		AMD Athlon XP™	/ Athlon™
	•					nVidia®
		nForceTM IGP-128			64/128 bit DDR
				GeForce 2 MX
		GPU			hypertexel pipelines
		256-bit 3D/2D				AGP 4X
			128bit	DDR		4.2 GB
	•				nVidia®
		nForceTM MCP Media and Communications Processor
			PCI Bus IDE USB		AC 97
		UltraDMA 100/66/33				100
		MB/sec	IDE	IDE		USB
			PCI 2.2	PCI
	•	PC2100/PC1600		DDR		DDR
		Double Date Rate		DIMM
		PC2100/PC1600		DDR SDRAM	1.5 GB DDR
		SDRAM

DDR SDRAM

• JumperFreeTM

	JumperFreeTM	BIOS
	Vcore
•	BIOS	2Mb FWH	C P U /
	SDRAM	IDE	/SCSI	/
	MO/ZIP/	/

8

A7N266

2.

2.1.2

•CPU AMD Athlon™ XP / Athlon™ / Duron™ Socket A(462)

•	PCI	32	PCI 2.2
			133MB
	SCSI	PCI
•	IDE	IDE	Ultra DMA 100/66
	PIO	3 &4 IDE	DVD
		CD-RW
•	AGP Pro		AGP Pro
	AGP 4X	1.5	AGP AGP Pro
•	USB	USB	USB
•
	PDA

•

•

•()

•()

•()

•/

MIDI

•

•PS/2 PS/2 ()

•PS/2 PS/2 ()

•

LED

•

AGP

3.3V AGP

•ATX ATX

A7N266

9

2.

2.1.3

•	UltraDMA/100	IDE	IDE
(	)	IDE
	IDE		PIO Mode 3 4
		UltraDMA/100/66/33
	100MB	IDE
	MO	LS-120

• Multi-I/O UART

EPP ECP

•	D D R S D R A M					D D R
	SDRAM	Double Data Rate SDRAM
		SDRAM		DDR		100MHz
	1 3 3 M H z
	200MHz	266MHz	100MHz	DDR SDRAM
	1.6 GB/	133MHz	DDR SDRAM			2.1 GB/
•	HRTF 3D		C-Media CMI8738 PCI
			S/PDIF		/
		PC DVD 5.1/6.1 AC-3/DTS
		DVD	PCtel 56K
	OK		CMI8738		24	S/PDIF
			SBPROTM	FM		/DLS
•	C.O.P.		AMD® Athlon™ XP
		CPU		CPU
		CPU

•ACPI

ACPI Advanced Configuration and Power Interface

	W i n d o w s 9 8 / M E /
2000	OSPM OS Direct Power
Management	24
ACPI	ACPI
Windows 98/ME/2000
•	BIOS
PC 99
Windows 95/98/ME/NT/2000	32

10

A7N266

2.

•

		BIOS
•	C P U
•	ACPI	LED
•
•	Windows 95/98/ME	Windows NT/
2000	OS/2

•CPU ASIC

•

•

ASIC

A7N266

11

2.

2.2

	Socket A			AMD Athlon™/ Athlon XP™/ Duron™
			.............................................................................. 1
			nVidia®	nForce™	IGP-128	................ ...... 2
			nVidia®	nForce™	MCP	........................... 12
		-	/	........................................................ 8
	2Mbit			EEPROM		............................. 9
	3	DDR DIMM		............................................................ 3
		PC1600 / PC2100 DDR DRAM				1.5 GB
	5	PCI	..................................................................... 18
	1	AGP Pro		................................................................ 22
	1			ACR	......................................... 15
	I/O 1			....................................................... 7
2		IDE			UltraDMA/100 ................. 6
1			........................................................				25
1		VGA	.........................................................				24
1			COM1	...........................................			26
1			COM2	......................................................			10
	USB		Port 0	Port 1 .............................................. 27
	USB		Ports 2/3/4/5		................................................... 13
1		IrDA			................................................		11
1		PS/2		..................................................			28
1		PS/2		..................................................			28
					ASIC	................. 14
	Realtek LAN			........................................................ 17
	LAN(RJ-45)			...................................................			27
	CMI8738				........................................... 20
				................................................................ 16
			Aux	CD	..................................... 19
1		/MIDI		.................................................			23
1				............................................			23
1				................................................			23
1			....................................................				23
	ATX			............................................................. 4
				............................................... (			) 5
			AGP		.............................. (		) 21

ATX

12

A7N266

28

27

26

25

24

23

22

21

20

19

18

17

16

15

2.

-

1

2

3

4

5

6

7

8

9

10

14 13

12

11

A7N266

13

3.

3.1

24.5cm (9.64in)

PS/2

USB1 RJ-45

USB2

COM1

VGA

GAME_AUDIO

USBPWR01

CPU_FAN

A7N266

Socket 462

CHA_FAN

01

01

01

CPU

DIMM1

DIMM2

DIMM3

VDDR

IDE

IDE

PLED

nVidia

DDR

DDR

DDR

nForce

IGP-128

BCS1 BCS2

0

1

2

3

4

5

ATX

INT_LINEIN

INT_MIC HEADPHONE

					C-Media CMI8738
				SPDIF
					AUD_EN
	AUX
					CD
	MODEM				Realtek RTL8100
				LAN_EN

JEN

BSEL0

BSEL1

AGP PRO

WARNING

PCI

PCI

PCI

PCI

PCI

ACR

NB_FAN

nVidia

MCP

FLOPPY

CR2032 3V

CMOS

2Mb BIOS

Super

I/O

	CLRTC	COM2
	VID1
JTPWR	VID2
	VID3
	VID4
BUZZER		IR

	USBPWR45	SMB
	USBPWR23	IDELED
		CHASSIS
USB45	USB23
		PANEL

30.5cm (12.0in)

14

A7N266

3.

3.2

1)	PLED, WARNING		p.17			AGP
2)	JEN		p.18	JumperFree			/
3)	BSEL0, BSEL1		p.18	CPU:DRAM		(100:100, 100:133, 133:100, 133:133)
4)	VID 1,2,3,4		p.19			1.675V ~ 1.85V
5)	VDDR		p.19	DDR		(2.7V, 2.6V, 2.5V)
6)	BCS1, BCS2		p.20	Bass / Center Setting (Center/Bass, Bass/Center)
7)	LAN_EN		p.20		(	/	) (	)
8)	AUD_EN		p.21		(	/	) (	)
9)	USB01 / USB23 / USB45PWR p.21			USB			(+5V / +5VSB)
10) CLR_RTC			p.22		CMOS	2 pin
1)	DIMM 1/2/3		p. 23
2)	Socket 462(Socket A)		p. 26	AMD
3)	PCI1/2/3/4/5		p. 27	32	PCI
4)	AGP PRO		p. 29	AGP Pro
5)	ACR		p. 30			ACR
	\	\
1)	PS2KBMS		p. 31	PS/2		6 pin
2)	PS2KBMS		p. 31	PS/2		6 pin
3)	USB		p. 32		0 & 1		4-pin
4)	PRINTER		p. 32			25-pin
5)	RJ-45		p. 32
6)	COM1/COM2		p. 33		9-pin
7)	VGA		p. 33			25-pin
8)	GAME_AUDIO		p. 34	/MIDI		15-pin
9)	AUDIO		p. 34			1/8
10)	IDELED		p. 35	IDE				2 pins
11)	FLOPPY		p. 35			34 pins
12)	PRIMARY/SEC. IDE		p. 36	IDE		40-1 pins
13)	CPU/PWR/CHA_FAN p. 37			CPU/		/		3 pins
14)	USB2_3/USB4_5		p. 37			10-1 pins
15)	IrDA		p. 38				10-1 pins
16)	ATXPWR		p. 39	ATX		20 pins

A7N266

15

3.

17)	SMB	p. 39	SMBus	5-1 pins
18)	CD/AUX/MODEM	p. 40		12-1 pins
19)	INT_MIC	p. 40		3 pins
20)	HPHONE	p. 41		3 pins
21)	INT_LINEIN	p. 41		3 pins
22)	S/PDIF	p. 42		2 pins
23)	CHASSIS	p. 42			4-1 pins
24)	JTPWR	p. 43			2 pins
25)	PWR.LED	p. 44		3 pins
26)	KEYLOCK	p. 44		2 pins
27)	SPEAKER(PANEL)	p. 44		4 pins
28)	LED	p. 44		2 pins
29)	SMI	p. 44	SMI	2 pins
30)	PWR	p. 44	ATX	/	2 pins
31)	RESET	p. 44		2 pins

3.3

1.	Jumper
2.

3. CPU

4.

5.

6.BIOS

16

A7N266

3.

3.4

SwitchJumper

	1.
	2.	CPU, RAM
	3.
	4.
	5.	ATX	ATX
		LED
		LED
1)		(LED - Light Emitting Diodes)
		(LED1)	(1)
(2)		(3)	AGP
		3.3	AGP
		AGP	(+3.3V)

1.5

AGP
		A7N266	PLED
01	01	01
		ON	OFF
		Standby	Powered
		Power	Off
		WARNING
		ON	OFF

A7N266 Onboard LED

Incorrect	Correct
AGP Card	AGP Card

A7N266

17

3.

2)JumperFreeTM JEN

JumperFree™	BIOS
	JumperFree™	jumpers
[2-3]	BSEL jumpers	[1-2]

				A7N266
1	0	1	0	1	0

A7N266 Jumper Mode Setting

JEN

1	2	2	3
Disable		Enable
		(Default)

3) CPU:DRAM (BSEL0, BSEL1)

			CPU
		CPU		CPU
			100:100 Mhz		CPU
		JEN jumper	[1-2]
CPU	DRAM	BSEL0	BSEL1		JEN
133	133	[1-2]	[1-2]		[1-2]
133	100	[2-3]	[1-2]		[1-2]
100	133	[2-3]	[2-3]		[1-2]
100	100	[1-2] (	) [2-3] (	)	[1-2]

		A7N266	1	2	3	1	2	3
01	01	01
			JEN			JEN
			BSEL0			BSEL0
			BSEL1			BSEL1
			CPU 133MHz			CPU 133MHz
			DRAM 133MHz			DRAM 100MHz
			1	2	3	1	2	3
			JEN			JEN
			BSEL0			BSEL0
			BSEL1			BSEL1
			CPU 100MHz			CPU 100MHz
			DRAM 133MHz			DRAM 100MHz
A7N266 CPU						(Default)
External Frequency Selection

18

A7N266

3.

4) (VID1, VID2, VID3, VID4)

CPU Default

jumper

		A7N266
01	01	01

1 2 3 4			1 2 3 4				1 2 3 4
VID1		VID1			VID1
VID2		VID2			VID2
VID3		VID3			VID3
VID4		VID4			VID4
(CPU Default)		1.85/1.825Volts			1.80/1.775Volts
1	2	3	4	1	2	3	4
VID1			VID1
VID2			VID2
VID3			VID3
VID4			VID4

1.75/1.725Volts 1.70/1.675Volts

A7N266 CPU Core Voltage Selection

5) DDR (VDDR)

DDR

Setting

VDDR

2.7V

[1-2]

2.6V

[2-3] (

)

2.5V

[3-4]

A7N266

01

01

01

VDDR

1
2	2
	3	3
		4

2.7V

2.6V

2.5V

(Default)

A7N266 VDDR Setting

A7N266

19

3.

6)Bass Center (BCS1, BCS2)

C-Media PCI

Center/Bass, to Bass /Center Line-In Line-Out Mic

C-Media

		A7N266
01	01	01

2	3
	2
1
BCS1 BCS2	BCS1 BCS2
CENTER / BASS	BASS / CENTER
(Default)

A7N266 Bass Center Setting

7) (LAN_EN) ( LAN )

(RTL8100)

	[1-2]
[2-3]
		A7N266
01	01	01

LAN_EN

1	2	2		3

Enable Disable (Default)

A7N266 On Board LAN Setting

20

A7N266

3.

8) (AUD-EN) ( )

[1-2]															PCI
			ACR									[2-3]			(
3.7.3, ACR												)
											A7N266
							1	0	1	0	1	0

AUD_EN

	3
2	2
1

Enable Disable (Default)

A7N266 Audio Codec Setting

9) USB USB01_PWR/USB23_PWR/USB45_PWR

+5V	USB	S1	CPU
RAM
+5VSB	USB	S3
CPU RAM
	+ 5 V S B		2 A /
+5VSB			+5VSB
+5V			+5VSB
	+5VSB

1. +5VSB Enabled

2.

+5VSB

		A7N266
01	01	01

A7N266 USB Device Wake Up

USBPWR01

1	2	2	3
+5V		+5VSB
(Default)
	USBPWR45
	USBPWR23
1	2	2	3
+5V		+5VSB
(Default)

A7N266

21

3.

10) BIOS CLRTC

C M O S

C M O S

1
2	Jumper	[2-3]
3
4		<Del>	BIOS
	BIOS
5
6	Jumper	[1-2]
7

				A7N266
1	0	1	0	01

CLRTC

1 2	2	3
Normal	Clear CMOS
(Default)

A7N266 Clear RTC RAM

22

A7N266

3.

3.5DDR SDRAM

3.5.1 DDR DIMM

	DDR Double Data Rate					DIMM
	64, 128, 256, 512MB			2.5	DDR SDRAM
Double Data Rate Synchronous Dynamic Random Access Memory
	64MB	1.5GB
	DIMM
TwinBankTM	128-bit		DDR
4.2 GB/sec			DIMM
DIMM			64-bit
DDR DIMM			184-pin	non-ECC		unbuf-
fered					CAS Latency 2.0
(PC2100A) 2.5 (PC2100B)		(	25	DIMM		)
1.	DIMM
2.		5
			DDR
	DDR SDRAM
Capacity	DIMM 1 (A0)	DIMM2 (B0)		DIMM3 (B1)
128 MB	64MB - 1B or 2B	64MB - 1B or 2B		X
192 MB	128MB - 1B or 2B	64MB - 1B or 2B		X
256 MB	128MB - 1B or 2B	128MB - 1B or 2B		X
	128MB - 1B or 2B	64MB - 1B or 2B		64MB - 1B
384 MB	256MB - 1B or 2B	128MB - 1B or 2B		X
	128MB - 1B or 2B	128MB - 1B or 2B		128MB - 1B
512 MB	256MB - 1B or 2B	256MB - 1B or 2B		X
	256MB - 1B or 2B	128MB - 1B or 2B		128MB - 1B
786 MB	512MB - 1B or 2B	256MB - 1B or 2B		X
	256MB - 1B or 2B	256MB - 1B or 2B		256MB - 1B
1 GB	512MB - 1B or 2B	512MB - 1B or 2B		X
	512MB - 1B or 2B	256MB - 1B or 2B		256MB - 1B
1.25 GB	512MB - 1B or 2B	512MB - 1B or 2B		256MB - 1B
1.5 GB	512MB - 1B or 2B	512MB - 1B or 2B		512MB - 1B

Table Legend:
1B = 1 bank: a single load module.	2B = 2 bank: a dual load module.
A7N266	23

3.

3.5.2

184 DDR SDRAM

2.5V

unbuffered

DDR DIMM

		A7N266
01	01	01

104 Pins

80 Pins

A7N266 184-Pin DDR

DIMM Sockets

1.

2. SDR

3. SDR

24

A7N266

3.

1.

2.

3.5.3

•	18	DIMM
•	SPD (Serial Presence Detect) DIMM

•BIOS

•	DIMM
•	64 128 256 MB
128 256	512 MB

A7N266

25

3.

3.6 CPU

AMD	Athlon XPTM	AthlonTM	DuronTM
	Socket 462	Socket A
		LOCK

			A7N266
1	0	01	01
A7N266 Socket 462

CPU NOTCH					LEVER
TO INNER
CORNER

CPU NOTCH

AMD™ Athlon

1. Socket A

90

3.

Socket A

Socket 462

4.Socket A

Socket A

Socket A

5.

Socket A

1 Socket A

2

3

26

A7N266

3.

3.7

3.7.1

1.

2.

3.
4.
5.
6.	BIOS
4.4.3 PCI	IRQXX Used By ISA
7.

A7N266

27

3.

3.7.2 IRQ

IRQ		IRQ
AT	16
6		PCI
IRQ		MIDI
IRQ	IRQ	4

		PCI		PCI
		IRQ		IRQ
				I R Q
		IRQ
		IRQ
		0	1
	1		2
		2	N/A
		3*	11	COM 2
		4*	12	COM 1
		5*	13	LPT 2
	6		14
		7*	15	LPT 1
8			3	CMOS/
		9*	4	ACPI
		10*	5	PCI
		11*	6	PCI
		12*	7	PS/2
		13	8
		14*	9	IDE
		15*	10	IDE

*

28

A7N266

3.

	INT-A	INT-B	INT-C	INT-D	INT-E
PCI		---	---	---	---
PCI	---	---	---		---
PCI	---	---		---	---
PCI	---		---	---	---
PCI		---	---	---	---
AGP Pro	---	---	---	---
ACR		---	---	---	---
	---		---	---	---
USB	---	---	---		---

3.7.3 ACR

Advanced Communication Riser

Home

Phoneline Networking Alliance	HomePNA
ACR	AMR

ACR PCI

		A7N266
01	01	01

A7N266 Advanced

Communication Riser (ACR)

A7N266

29