GEMLIGHT COMPUTER LTD.
GMB-P54IPS (VER. 2.30)
| Device Type | Mainboard |
| Processor | CX 6X86/AM K5/Pentium |
| Processor Speed | 75/83/90/100/110/120/133/150/166MHz |
| Chip Set | Intel 430FX |
| Maximum Onboard Memory | 128MB (EDO supported) |
| Cache | 256/512KB |
| BIOS | Award/AMI |
| Dimensions | 220mm x 270mm |
| I/O Options | 32-bit PCI slots (3), floppy drive interface, IDE interfaces (2), parallel interface, PS/2 mouse port, serial interfaces (2), cache slot, VRM connector, PS/2 keyboard port, Green PC connector |
CONNECTIONS |
|||
| Purpose | Location |
Purpose | Location |
| PS/2 mouse port | CN1 | Power LED & Keylock | J1 |
| PS/2 keyboard port | CN2 | Turbo LED | J2 |
| Serial interface 1 | CN3 | PC speaker | J3 |
| Serial interface 2 | CN4 | IDE interface LED | J4 |
| Parallel interface | CN5 | Reset switch | J5 |
| Floppy drive interface | CN6 | VRM connector | J6 |
| IDE interface 1 | CN7 | Green PC connector | J17 |
| IDE interface 2 | CN8 | 32-bit PCI slots | PC1 - PC3 |
USER CONFIGURABLE SETTINGS |
|||
Function |
Label |
Position |
|
| Flash BIOS voltage select 5V | JP10 |
Pins 2 & 3 closed |
|
| Flash BIOS voltage select 12V | JP10 |
Pins 1 & 2 closed |
|
» |
CMOS memory normal operation | JP11 |
Open |
| CMOS memory clear | JP11 |
Closed |
|
|
Cache size equals 256KB | JP14 | Pins 2 & 3 closed |
| Cache size equals 512KB | JP14 | Pins 1 & 2 closed | |
» |
Factory configured - do not alter | JP20 |
Unidentified |
SIMM CONFIGURATION |
||
Size |
Bank 0 |
Bank 1 |
8MB |
(2) 1M x 36 |
None |
16MB |
(2) 2M x 36 |
None |
16MB |
(2) 1M x 36 |
(2) 1M x 36 |
24MB |
(2) 2M x 36 |
(2) 1M x 36 |
32MB |
(2) 4M x 36 |
None |
32MB |
(2) 2M x 36 |
(2) 2M x 36 |
40MB |
(2) 4M x 36 |
(2) 1M x 36 |
48MB |
(2) 4M x 36 |
(2) 2M x 36 |
64MB |
(2) 8M x 36 |
None |
64MB |
(2) 4M x 36 |
(2) 4M x 36 |
72MB |
(2) 8M x 36 |
(2) 1M x 36 |
80MB |
(2) 8M x 36 |
(2) 2M x 36 |
96MB |
(2) 8M x 36 |
(2) 4M x 36 |
128MB |
(2) 8M x 36 |
(2) 8M x 36 |
CACHE CONFIGURATION |
|||
Size |
Bank 0 |
Bank 1 |
TAG |
256KB |
None |
(8) 32K x 8 |
(1) 8K/16K x 8 |
256KB - Pipe Burst Mode |
(2) 32K x 32/36 |
None | (1) 8K/16K x 8 |
512KB |
None |
(8) 64K x 8 | (1) 16/32K x 8 |
CPU SPEED SELECTION (INTEL) |
||||
Speed |
JP4 | JP5 | JP16 | JP17 |
75MHz |
Open | Open | Closed | Closed |
90MHz |
Open | Open | Closed | Open |
100MHz |
Open | Open | Open | Closed |
120MHz |
Closed | Open | Closed | Open |
133MHz |
Closed | Open | Open | Closed |
150MHz |
Closed | Closed | Closed | Open |
166MHz |
Closed | Closed | Open | Closed |
CPU SPEED SELECTION (AM) |
||||
Speed |
JP4 | JP5 | JP16 | JP17 |
| 75MHz^ | Closed | Open | Open | Closed |
75MHz~ |
Open | Open | Closed | Closed |
83MHz |
Open | Open | Open | Open |
90MHz |
Open | Open | Closed | Open |
| 100MHz* | Open | Open | Closed | Closed |
| 100MHz+ | Open | Open | Open | Open |
100MHz# |
Open | Open | Open | Closed |
120MHz |
Closed | Open | Closed | Open |
133MHz |
Closed | Open | Open | Closed |
| 150MHz | Closed | Open | Closed | Open |
| 166MHz | Closed | Open | Open | Closed |
| ^Note:
(AMD-SSA/5-66) ~Note: (AMD-SSA/5-75) *Note: (AMD-K5-75) +Note: (AMD-K5-83) #Note: (AMD-SSA/5-100) |
||||
CPU SPEED SELECTION (CX) |
||||
Speed |
JP4 | JP5 | JP16 | JP17 |
120MHz |
Closed | Open | Closed | Closed |
133MHz |
Closed | Open | Open | Open |
150MHz |
Closed | Open | Closed | Open |
166MHz |
Closed | Open | Open | Closed |
CPU VOLTAGE SELECTION (SINGLE) |
||||
Voltage |
J6 | JP2 | JP3 | JP13 |
| 3.4V | 6 & 7, 21 & 22 | Open | Closed | Open |
| 3.5V | 6 & 7, 21 & 22 | Closed | Open | Open |
| Note: Designated pins should be in the closed position. | ||||
CPU VOLTAGE SELECTION (DUAL) |
|||||
Voltage |
Vcore | J6 | JP2 | JP3 | JP13 |
| 3.3V | 2.5V | Open | Open | Closed | 1 & 2, 3 & 4 |
| Note: Designated pins should be in the closed position. | |||||