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TURBOEXPRESS 486PCI-4G

GENOA SYSTEMS CORPORATION

TURBOEXPRESS 486PCI-4G

Processor

80486SX/80486Overdrive/80487SX/80486DX/80486DX2

Processor Speed

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

Chip Set

Unidentified

Video Chip Set

None

Maximum Onboard Memory

128MB

Maximum Video Memory

None

Cache

128/256/512KB

BIOS

Award

Dimensions

254mm x 218mm

I/O Options

32-bit PCI slots (4)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Power LED & keylock

JP17

Turbo LED

JP20

Speaker

JP18

Turbo switch

JP21

Reset switch

JP19

32-bit PCI slots

PC1 PC4

DRAM CONFIGURATION

Size

Bank 0

Bank 1

2MB

(2) 256K x 36

None

4MB

(2) 512K x 36

None

4MB

(2) 256K x 36

(2) 256K x 36

6MB

(2) 512K x 36

(2) 256K x 36

8MB

(2) 1M x 36

None

8MB

(2) 512K x 36

(2) 512K x 36

10MB

(2) 1M x 36

(2) 256K x 36

12MB

(2) 1M x 36

(2) 512K x 36

16MB

(2) 2M x 36

None

16MB

(2) 1M x 36

(2) 1M x 36

18MB

(2) 2M x 36

(2) 256K x 36

20MB

(2) 2M x 36

(2) 512K x 36

24MB

(2) 1M x 36

(2) 2M x 36

32MB

(2) 4M x 36

None

32MB

(2) 2M x 36

(2) 2M x 36

34MB

(2) 4M x 36

(2) 256K x 36

36MB

(2) 512K x 36

(2) 4M x 36

40MB

(2) 4M x 36

(2) 1M x 36

48MB

(2) 2M x 36

(2) 4M x 36

64MB

(2) 8M x 36

None

64MB

(2) 4M x 36

(2) 4M x 36

66MB

(2) 8M x 36

(2) 256K x 36

68MB

(2) 512K x 36

(2) 8M x 36

72MB

(2) 8M x 36

(2) 1M x 36

80MB

(2) 2M x 36

(2) 8M x 36

96MB

(2) 8M x 36

(2) 4M x 36

128MB

(2) 8M x 36

(2) 8M x 36

Note: Banks are interchangeable.

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

128KB

(4) 32K x 8

None

(1) 32K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

512KB

(4) 128K x 8

None

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP2

JP3

JP12

JP13

128KB

Pins 1 & 2 closed

Pins 2 & 3 closed

Open

Open

256KB

Pins 2 & 3 closed

Pins 1 & 2 closed

Closed

Open

512KB

Pins 2 & 3 closed

Pins 2 & 3 closed

Closed

Closed

CACHE CONFIGURATION

Setting

JP4

Enabled

Pins 2 & 3 closed

Disabled

Pins 1 & 2 closed

CPU SPEED SELECTION

Speed

JP5

JP10

JP11

25MHz

Pins 1 & 2 closed

Open

Closed

33MHz

Pins 2 & 3 closed

Closed

Open

50iMHz

Pins 1 & 2 closed

Open

Closed

66iMHz

Pins 2 & 3 closed

Closed

Open

CPU TYPE SELECTION

Type

JP14

JP15

JP16

80486SX

Pins 1 & 2 closed

Open

Pins 2 & 3 closed

486Overdrive (168 pin)

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2, 3 & 4 closed

486Overdrive (169 pin)

Pins 1 & 2 closed

Pins 2 & 3 closed

Pins 1 & 2, 3 & 4 closed

80487SX

Pins 1 & 2 closed

Pins 2 & 3 closed

Pins 1 & 2, 3 & 4 closed

80486DX

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2, 3 & 4 closed

8048DX2

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2, 3 & 4 closed

PCI TRIGGER SELECTION

Setting

JP27

JP28

ISA IDE

Pins 2 & 3 closed

Closed

 

Level

Pins 1 & 2 closed

Open

 

Edge

Pins 4 & 5 closed

Open