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GA-686DX Motherboard Settings and Configuration






GIGA-BYTE TECHNOLOGY CO., LTD.

GA-686DX

Processor

Pentium Pro

Processor Speed

150/166/180/200/233/266MHz

Chip Set

Intel

Video Chip Set

None

Maximum Onboard Memory

512MB (EDO supported)

Maximum Video Memory

None

Cache

256/512KB (located on Pentium Pro CPU)

BIOS

Award

Dimensions

305mm x 244mm

I/O Options

32-bit PCI slots (5), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), IR connector, USB connector, ATX power connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

ATX power connector

ATX

Reset switch

J2

Serial port 1

CN1

Power LED

J3

Parallel port

CN2

IDE interface LED

J4

Serial port 2

CN3

IR connector

J5

PS/2 mouse port

CN4

Green PC connector

J6

USB connector (optional)

CN5

Soft on power supply

J7

IDE interface 1

CN6

Green PC LED

J8

IDE interface 2

CN7

Chassis fan power

JP2

Floppy drive interface

CN8

Chassis fan power

JP4

Speaker

J1

32-bit PCI slots

PC1 Ė PC5

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

8MB

(2) 1M x 36

None

None

16MB

(2) 1M x 36

(2) 1M x 36

None

16MB

(2) 2M x 36

None

None

24MB

(2) 2M x 36

(2) 1M x 36

None

24MB

(2) 1M x 36

(2) 1M x 36

(2) 1M x 36

32MB

(2) 4M x 36

None

None

32MB

(2) 2M x 36

(2) 2M x 36

None

40MB

(2) 4M x 36

(2) 1M x 36

None

48MB

(2) 4M x 36

(2) 2M x 36

None

48MB

(2) 4M x 36

(2) 1M x 36

(2) 1M x 36

56MB

(2) 4M x 36

(2) 2M x 36

(2) 1M x 36

64MB

(2) 8M x 36

None

None

64MB

(2) 4M x 36

(2) 4M x 36

None

80MB

(2) 8M x 36

(2) 2M x 36

None

80MB

(2) 8M x 36

(2) 1M x 36

(2) 1M x 36

88MB

(2) 8M x 36

(2) 2M x 36

(2) 1M x 36

96MB

(2) 8M x 36

(2) 4M x 36

None

96MB

(2) 4M x 36

(2) 4M x 36

(2) 4M x 36

96MB

(2) 8M x 36

(2) 2M x 36

(2) 2M x 36

104MB

(2) 8M x 36

(2) 4M x 36

(2) 1M x 36

112MB

(2) 8M x 36

(2) 4M x 36

(2) 2M x 36

128MB

(2) 8M x 36

(2) 4M x 36

(2) 4M x 36

128MB

(2) 16M x 36

None

None

128MB

(2) 8M x 36

(2) 8M x 36

None

136MB

(2) 8M x 36

(2) 8M x 36

(2) 1M x 36

136MB

(2) 16M x 36

(2) 1M x 36

None

144MB

(2) 16M x 36

(2) 2M x 36

None

144MB

(2) 16M x 36

(2) 1M x 36

(2) 1M x 36

152MB

(2) 16M x 36

(2) 2M x 36

(2) 1M x 36

DRAM CONFIGURATION (CONíT)

Size

Bank 0

Bank 1

Bank 2

160MB

(2) 16M x 36

(2) 4M x 36

None

160MB

(2) 16M x 36

(2) 2M x 36

(2) 2M x 36

168MB

(2) 16M x 36

(2) 4M x 36

(2) 1M x 36

176MB

(2) 16M x 36

(2) 4M x 36

(2) 2M x 36

192MB

(2) 16M x 36

(2) 8M x 36

None

192MB

(2) 16M x 36

(2) 4M x 36

(2) 4M x 36

200MB

(2) 16M x 36

(2) 8M x 36

(2) 1M x 36

208MB

(2) 16M x 36

(2) 8M x 36

(2) 2M x 36

224MB

(2) 16M x 36

(2) 8M x 36

(2) 4M x 36

256MB

(2) 16M x 36

(2) 16M x 36

None

256MB

(2) 16M x 36

(2) 8M x 36

(2) 8M x 36

256MB

(2) 32M x 36

None

None

264MB

(2) 16M x 36

(2) 16M x 36

(2) 1M x 36

264MB

(2) 32M x 36

(2) 1M x 36

None

272MB

(2) 16M x 36

(2) 16M x 36

(2) 2M x 36

272MB

(2) 32M x 36

(2) 2M x 36

None

288MB

(2) 16M x 36

(2) 16M x 36

(2) 4M x 36

288MB

(2) 32M x 36

(2) 4M x 36

None

320MB

(2) 16M x 36

(2) 16M x 36

(2) 8M x 36

320MB

(2) 32M x 36

(2) 8M x 36

None

384MB

(2) 16M x 36

(2) 16M x 36

(2) 16M x 36

384MB

(2) 32M x 36

(2) 16M x 36

None

512MB

(2) 32M x 36

(2) 32M x 36

None

Note: Board accepts EDO memory.

CACHE CONFIGURATION

Note: 256KB/512KB cache is located on the Pentium Pro CPU.

CPU SPEED SELECTION

Speed

S1/1

S1/2

S1/3

S1/4

150MHz

On

On

Off

Off

166MHz

Off

On

Off

Off

180MHz

On

Off

On

Off

200MHz

Off

Off

On

Off

233MHz

Off

On

On

Off

266MHz

Off

Off

Off

On








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