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CQH486V VESA

NIC TECHNOLOGY, INC.

CQH486V VESA

Processor

80486SX/80486DX/80486DX2

Processor Speed

20/25/33/50(internal)/50/66(internal)

Chip Set

UNI

Max. Onboard DRAM

32MB

SRAM Cache

64/128/256KB

BIOS

AMI

Dimensions

280mm x 220mm

I/O Options

32-bit VESA card slot (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

JP17

Turbo LED

TLED

Power LED & keylock

KEYL

Turbo switch

TSW

Reset switch

RSW

32-bit VESA card

S1

Speaker

SPK

32-bit VESA card

S2

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Monitor type select color

JP12

open

 

Monitor type select monochrome

JP12

closed

CMOS memory normal operation

JP16

pins 1 & 2 closed

 

CMOS memory clear

JP16

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(4) 256K x 9

NONE

2MB

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

20MB

(4) 1M x 9

(4) 4M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CPU TYPE CONFIGURATION

Type

Jumper JP2

Jumper JP3

80486DX2 (PGA)

pins 1 & 2 and 3 & 4 closed

pins 2 & 3 closed

80486DX (PGA)

pins 1 & 2 and 3 & 4 closed

pins 2 & 3 closed

80486SX (PGA)

pins 2 & 3 closed

open

80486SX (PQFP)

open

open

CPU SPEED CONFIGURATION

Speed

ID2

ID3

JP33

JP72

JP100

JP101

66MHz (internal)

closed

closed

pins 2 & 3

open

closed

pins 2 & 3

50MHz

closed

closed

pins 1 & 2

open

open

pins 2 & 3

50 MHz (internal)

closed

open

pins 2 & 3

closed

open

pins 1 & 2

33MHz

closed

closed

pins 2 & 3

open

closed

pins 2 & 3

25MHz

closed

open

pins 2 & 3

closed

open

pins 1 & 2

SRAM JUMPER CONFIGURATION

Size

Jumper JP7

Jumper JP8

64KB

pins 2 & 3 closed

open

128KB

pins 1 & 2 closed

pins 2 & 3 closed

256KB

pins 1 & 2 closed

pins 1 & 2 closed

SRAM CONFIGURATION

Size

Cache SRAM

Location

TAG

64KB

(8) 8K x 8

Banks 0 & 1

(1) 8K x 8

128KB

(4) 32K x 8

Bank 0

(1) 8K x 8

256KB

(8) 32K x 8

Banks 0 & 1

(1) 32K x 8