ACERPOWER425SE/433E/466DE (J3 PROJECT) Motherboard Settings and Configuration

Processor

80486SX/80487SX/ODP486SX/80486DX/80486DX2/Pentium Overdrive/Pentium (depends on CPU card installed)

Processor Speed

25/33/40/50(internal)/50/66(internal)/66MHz

Chip Set

Unidentified

Max. Onboard DRAM

256MB

Cache

64/128/256/1024KB (depends on CPU card installed)

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

External CPU card, 32-bit VESA local bus slots (2), PS/2 mouse port

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse port

CN1

Chassis fan power

JJ1

SCSI interface LED

J5

Chassis fan power

JJ2

Speaker

J6

32-bit VESA local bus slots

SL1 & SL2

Optional mouse/keyboard

J7

External CPU slot

SL3

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Factory configured - do not alter

JP5

N/A

»

Password disabled

JP6

pins 2 & 3 closed

Password enabled

JP6

pins 1 & 2 closed

»

CMOS memory normal operation

JP7

Open

CMOS memory clear

JP7

Closed

»

IRQ select IRQ11

JP8

pins 2 & 3 closed

IRQ select IRQ10

JP8

pins 1 & 2 closed

»

Onboard buzzer enabled

JP9

pins 1 & 2 closed

External speaker enabled

JP9

pins 2 & 3 closed

DRAM CONFIGURATION (SYSTEM BOARD)

Size

Bank 0

Bank 1

Bank 2

Bank 3

4MB

(1) 1M x 36

NONE

NONE

NONE

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

NONE

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

(1) 4M x 36

NONE

NONE

NONE

20MB

(1) 1M x 36

(1) 4M x 36

NONE

NONE

24MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

NONE

24MB

(1) 1M x 36

(1) 4M x 36

(1) 1M x 36

NONE

28MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

(1) 1M x 36

28MB

(1) 1M x 36

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

36MB

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

NONE

36MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

NONE

40MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

40MB

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

40MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

NONE

52MB

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

52MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 16M x 36

NONE

NONE

NONE

72MB

(1) 1M x 36

(1) 1M x 36

(1) 16M x 36

NONE

80MB

(1) 4M x 36

(1) 16M x 36

NONE

NONE

84MB

(1) 1M x 36

(1) 4M x 36

(1) 16M x 36

NONE

84MB

(1) 4M x 36

(1) 16M x 36

(1) 1M x 36

NONE

88MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

(1) 16M x 36

88MB

(1) 4M x 36

(1) 16M x 36

(1) 1M x 36

(1) 1M x 36

96MB

(1) 4M x 36

(1) 4M x 36

(1) 16M x 36

NONE

96MB

(1) 4M x 36

(1) 16M x 36

(1) 4M x 36

NONE

100MB

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

(1) 16M x 36

100MB

(1) 4M x 36

(1) 16M x 36

(1) 4M x 36

(1) 1M x 36

DRAM CONFIGURATION (SYSTEM BOARD CON'T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

112MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 16M x 36

112MB

(1) 4M x 36

(1) 16M x 36

(1) 4M x 36

(1) 4M x 36

128MB

(1) 16M x 36

(1) 16M x 36

NONE

NONE

132MB

(1) 16M x 36

(1) 16M x 36

(1) 1M x 36

NONE

136MB

(1) 1M x 36

(1) 1M x 36

(1) 16M x 36

(1) 16M x 36

136MB

(1) 16M x 36

(1) 16M x 36

(1) 1M x 36

(1) 1M x 36

144MB

(1) 4M x 36

(1) 16M x 36

(1) 16M x 36

NONE

144MB

(1) 16M x 36

(1) 16M x 36

(1) 4M x 36

NONE

148MB

(1) 1M x 36

(1) 4M x 36

(1) 16M x 36

(1) 16M x 36

148MB

(1) 16M x 36

(1) 16M x 36

(1) 4M x 36

(1) 1M x 36

160MB

(1) 4M x 36

(1) 4M x 36

(1) 16M x 36

(1) 16M x 36

160MB

(1) 4M x 36

(1) 16M x 36

(1) 4M x 36

(1) 16M x 36

160MB

(1) 16M x 36

(1) 16M x 36

(1) 4M x 36

(1) 4M x 36

192MB

(1) 16M x 36

(1) 16M x 36

(1) 16M x 36

NONE

208MB

(1) 4M x 36

(1) 16M x 36

(1) 16M x 36

(1) 16M x 36

208MB

(1) 16M x 36

(1) 16M x 36

(1) 4M x 36

(1) 16M x 36

256MB

(1) 16M x 36

(1) 16M x 36

(1) 16M x 36

(1) 16M x 36

VESA WAIT STATE CONFIGURATION

Wait states

JP3

0 wait states

pins 1 & 2 closed

1 wait state

pins 2 & 3 closed

BUS SPEED CONFIGURATION

CPU speed

JP4

<= 33MHz

pins 1 & 2 closed

> 33MHz

pins 2 & 3 closed

EXTERNAL BATTERY CONFIGURATION

Type

JP10

JP11

JP12

JP13

Dallas

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

Benchmarq

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

AIC-7770 CONFIGURATION

Setting

JP1

JP2

Installed

Open

Open

Not installed

Closed

Closed

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

LADS for VLB select 33MHz

JP3

pins 1 & 2 closed

LADS for VLB select 50MHz

JP3

pins 2 & 3 closed

»

Factory configured - do not alter

JP5

N/A

»

Factory configured - do not alter

JP6

N/A

»

Factory configured - do not alter

JP7

N/A

»

Local bus disabled

JP10

pins 1 & 2 closed

Local bus enabled

JP10

pins 2 & 3 closed

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

TAG (DIRTY)

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

(1) 16K x 1

128KB

(4) 32K x 8

NONE

(1) 8K x 8

(1) 16K x 1

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

(1) 16K x 1

1MB

(4) 128K x 8

(4) 128K x 8

(1) 128K x 8

(1) 64K x 1

Note: The orientation of the cache banks and TAG banks are unidentified.

CACHE JUMPER CONFIGURATION

Size

JP11

JP12

JP13

JP14

JP18

JP19

JP20

64KB

Open

Open

Open

Open

Open

Open

Open

128KB

Closed

Open

Open

Open

Open

Closed

Open

256KB

Closed

Closed

Open

Open

Open

Closed

Closed

1MB

Closed

Closed

Closed

Closed

Closed

Closed

Closed

CACHE BANK CONFIGURATION

Type

JP15

JP16

Single bank

pins 1 & 2 closed

pins 1 & 2 closed

Double bank

pins 2 & 3 closed

pins 2 & 3 closed

CPU SPEED CONFIGURATION

Type

JP1

JP2

JP8

JP9

25MHz

Open

Open

pins 1 & 2 closed

pins 1 & 2 closed

33MHz

Open

Closed

pins 1 & 2 closed

pins 2 & 3 closed

40MHz

Closed

Closed

pins 2 & 3 closed

pins 1 & 2 closed

50iMHz

Open

Open

pins 1 & 2 closed

pins 1 & 2 closed

50MHz

Closed

Closed

pins 2 & 3 closed

pins 2 & 3 closed

66iMHz

Open

Closed

pins 1 & 2 closed

pins 2 & 3 closed

CPU TYPE CONFIGURATION

Type

JP4

80486SX

pins 1 & 2 closed

ODP486SX

pins 2 & 3 closed

80487SX

pins 2 & 3 closed

80486DX

Open

80486DX2

Open

Pentium Overdrive

pins 2 & 3 closed

BUS SPEED CONFIGURATION

CPU speed

JP17

<= 33MHz

pins 1 & 2, 3 & 4 closed

> 33MHz

pins 2 & 3 closed

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Local bus disabled

JP4

pins 2 & 3 closed

Local bus enabled

JP4

pins 1 & 2 closed

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

TAG (DIRTY)

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

(1) 16K x 1

1MB

(4) 128K x 8

(4) 128K x 8

(1) 32K x 8

(1) 64K x 1

CACHE JUMPER CONFIGURATION

Size

JP11

JP12

JP14

JP15

256KB

Open

Open

Open

Open

1MB

Closed

Closed

Closed

Closed

CPU FREQUENCY CONFIGURATION

Speed

JP1

JP2

JP3

33MHz

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

40MHz

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

50MHz

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

66MHz

pins 2 & 3 closed

pins 1 & 2 closed

pins 1 & 2 closed

80MHz

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed