DIAMOND FLOWER, INC.

PB50-V3 (REV. AC+)

Device Type Mainboard
Processor Celeron/Pentium II/Pentium III
Processor Speed 233/266/300/333/350/366/400/433/450/500MHz
Chip Set VIA
Maximum Onboard Memory 384MB (SDRAM supported)
Cache 0/128/256/512KB (located on the CPU)
BIOS Award
Dimensions 265mm x 224mm
I/O Options (backplane) 32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel interface, PS/2 mouse interface, PS/2 keyboard port, serial interfaces (2), IR connector, USB interfaces (2), ATX power connector, AGP slot, Wake on LAN connector, SB-Link connector


CONNECTIONS

Purpose

Location

Purpose

Location

AGP slot

AGP

ATX standby LED J15/Pins 1 & 2
ATX power connector

ATX

IDE interface LED J15/Pins 4 & 5
PS/2 keyboard port CN1 Green PC LED J15/Pins 7 & 8
CPU fan power J3 Power switch J15/Pins 10 & 11
PS/2 mouse interface J4 Green PC connector J15/Pins 13 & 14
IR connector J7 Reset switch J15/Pins 16 & 17
Serial interface 2 J8 Speaker J15/Pins 19-22
Serial interface 1 J9 Power LED & keylock J15/Pina 24-28
Parallel inteface J10 USB interfaces (2) J16
AGP fan power J11 SB-Link connector J17
Floppy drive interface J12 Wake on LAN connector J18
IDE interface 2 J13 Chassis fan power J19
IDE interface 1 J14 32-bit PCI slots

PC1 - PC4


USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Keyboard/mouse power on disabled JP1 Pins 1 & 2 closed
  Keyboard/mouse power on enabled JP1 Pins 2 & 3 closed

»

CMOS memory normal operation JP3 Pins 1 & 2 closed
  CMOS memory clear JP3 Pins 2 & 3 closed


DIMM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

16MB

(1) 2M x 64

None

None

32MB

(1) 2M x 64

(1) 2M x 64

None

32MB

(1) 4M x 64

None

None

48MB

(1) 2M x 64

(1) 2M x 64

(1) 2M x 64

64MB

(1) 4M x 64

(1) 4M x 64

None

64MB

(1) 8M x 64

None

None

64MB

(1) 4M x 64

(1) 2M x 64

(1) 2M x 64

96MB

(1) 4M x 64

(1) 4M x 64

(1) 4M x 64

96MB

(1) 8M x 64

(1) 2M x 64

(1) 2M x 64

128MB

(1) 8M x 64

(1) 8M x 64

None

128MB

(1) 16M x 64

None

None

128MB

(1) 8M x 64

(1) 4M x 64

(1) 4M x 64

160MB

(1) 16M x 64

(1) 2M x 64

(1) 2M x 64

192MB

(1) 8M x 64

(1) 8M x 64

(1) 8M x 64

192MB

(1) 16M x 64

(1) 4M x 64

(1) 4M x 64

256MB

(1) 16M x 64

(1) 16M x 64

None

256MB

(1) 16M x 64

(1) 8M x 64

(1) 8M x 64

384MB

(1) 16M x 64

(1) 16M x 64

(1) 16M x 64

Note:  Board supports SDRAM memory.


CACHE CONFIGURATION

Note:  256KB/512KB cache is located on the Pentium II/Pentium III CPU.  128KB cache is located on the Celeron 300A and greater CPUs.


CPU SPEED SELECTION (CELERON)

CPU speed

Clock speed

Multiplier

SW1/1

SW1/2

SW1/3

SW1/4

266MHz

66MHz

4x

On On Off On

300MHz

66MHz

4.5x

Off On Off On

333MHz

66MHz

5x

On Off Off On

366MHz

66MHz

5.5x

Off Off Off On
400MHz 66MHz 6x On On On Off
433MHz 66MHz 6.5x Off On On Off


CPU SPEED SELECTION (PENTIUM II)

CPU speed

Clock speed

Multiplier

SW1/1

SW1/2

SW1/3

SW1/4

233MHz

66MHz

3.5x

Off Off On On

266MHz

66MHz

4x

On On Off On

300MHz

66MHz

4.5x

Off On Off On

333MHz

66MHz

5x

On Off Off On
350MHz 100MHz 3.5x Off Off On On
400MHz 100MHz 4x On On Off On
450MHz 100MHz 4.5x Off On Off On


CPU SPEED SELECTION (PENTIUM III)

CPU speed

Clock speed

Multiplier

SW1/1

SW1/2

SW1/3

SW1/4

450MHz 100MHz 4.5x Off On Off On
500MHz 100MHz 5x On Off Off On


BUS SPEED SELECTION

Setting

JP2

»

Auto-detect

Pins 1 & 2 closed

 

66MHz

Pins 2 & 3 closed

 

100MHz

Open