...because we can't all be on the bleeding edge...





CH-486-33/50P

CHICONY, INC.

CH-486-33/50P

Processor

80486SX/80487SX/80486DX/80486DX2/P23T/P24T

Processor Speed

20/25/33/40/50(internal)/50/66(internal)MHz

Chip Set

UMC

Video Chip Set

None

Maximum Onboard Memory

32MB

Maximum Video Memory

None

Cache

64/128/256KB

BIOS

AMI

Dimensions

254mm x 218mm

I/O Options

32-bit VESA local bus slots (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Power LED & keylock

J1

Reset switch

J5

Speaker

J2

External battery

J6

Turbo switch

J3

32-bit VESA local bus slots

SL1 & SL2

Turbo LED

J4

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

 

Monitor type select color

W1

Closed

 

Monitor type select monochrome

W1

Open

 

Battery type select internal

W14

Closed

 

Battery type select external

W14

Open

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

5MB

(4) 256K x 9

(4) 1M x 9

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

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG (U30)

TAG (U31)

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

None

128KB

(4) 32K x 8

None

(1) 8K x 8

None

256KB (A)

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

None

256KB (B)

(4) 32K x 8

(4) 32K x 8

(1) 8K x 8

(1) 8K x 8

CACHE JUMPER CONFIGURATION

Size

W6

W7

W8

W9

64KB

Open

Open

Open

Open

128KB

Open

Closed

Open

Closed

256KB (A)

Closed

Closed

Closed

Closed

256KB (B)

Closed

Closed

Closed

Closed

CACHE JUMPER CONFIGURATION (CONíT)

Size

W10

W11

W12

W13

64KB

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

128KB

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

256KB (A)

Pins 1 & 2 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

256KB (B)

Pins 1 & 2 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

CPU SPEED SELECTION

Speed

W15

W16

W17

W18

20MHz

Closed

Closed

Closed

Closed

25MHz

Closed

Open

Open

Closed

33MHz

Open

Open

Open

Closed

40MHz

Closed

Open

Open

Open

50iMHz

Closed

Open

Open

Closed

50MHz

Open

Open

Open

Open

66iMHz

Open

Open

Open

Closed

CPU TYPE SELECTION

Type

W2

W3

80486SX

Pins 2 & 3 closed

Open

80487SX

Pins 1 & 2, 3 & 4 closed

Pins 1 & 2 closed

80486DX

Pins 1 & 2, 3 & 4 closed

Pins 2 & 3 closed

80486DX2

Pins 1 & 2, 3 & 4 closed

Pins 2 & 3 closed

P23T

Pins 1 & 2, 3 & 4 closed

Pins 1 & 2 closed

P24T

Pins 1 & 2, 3 & 4 closed

Pins 2 & 3 closed

VL BUS WAIT STATE SELECTION

Setting

W4

0

Open

1

Closed

VL BUS SPEED SELECTION

Speed

W5

<= 33MHz

Open

>33 MHz

Closed