DIAMOND FLOWER, INC.
PB50-BX (REV. AA+)
| Device Type | Mainboard |
| Processor | Celeron/Pentium II/Pentium III |
| Processor Speed | 233/266/300/333/350/366/400/433/450/500MHz |
| Chip Set | Intel 440BX |
| Maximum Onboard Memory | 384/768MB (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 |
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| 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/Pins 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 |
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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) 32M x 64* |
None |
None |
256MB |
(1) 16M x 64** |
(1) 8M x 64** |
(1) 8M x 64** |
320MB |
(1) 32M x 64* |
(1) 4M x 64* |
(1) 4M x 64* |
384MB |
(1) 16M x 64** |
(1) 16M x 64** |
(1) 16M x 64** |
384MB |
(1) 32M x 64* |
(1) 8M x 64* |
(1) 8M x 64* |
512MB |
(1) 32M x 64* |
(1) 32M x 64* |
None |
512MB |
(1) 32M x 64* |
(1) 16M x 64* |
(1) 16M x 64* |
768MB |
(1) 32M x 64* |
(1) 32M x 64* |
(1) 32M x 64* |
| Note: Board
supports SDRAM memory. Maximum registered SDRAM is 768MB. Maximum unbuffered SDRAM
is 384MB. *Note: Designated DIMM's must be registered memory. **Note: Designated DIMM combinations can be either registered of unbuffered memroy. |
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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 CPU. |
CPU SPEED SELECTION (CELERON) |
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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) |
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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) |
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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 |
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| Setting | JP2 |
|
| » | Auto-detect |
Pins 1 & 2 closed |
66MHz |
Pins 2 & 3 closed |
|
100MHz |
Open |
|