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Acer 2100 Motherboard

Jumper and Connector Layout

2100 board diagram

Jumper Settings

JumperSettingFunction
JP12 - Vcore Voltage1-2
2-3 *
2.8v
2.2v
JP8, JP9 - SDRAM, PCI1-2, 1-2
2-3, 1-2 *
1-2, 2-3
2-3, 2-3
60MHz CPU, SDRAM - 30MHz PCI
66MHz CPU, SDRAM - 33MHz PCI
75MHz CPU, SDRAM - 30MHz PCI
83MHz CPU, SDRAM - 33MHz PCI
JP10 - CPU Type1-2
2-3 *
AMD K6-300
AMD K6-333 and AMD K6-366
JP11 - Voltage Type1-2
2-3
K6-300
K6-333 and K6-366


(For CY2273 CLK Generator)
SW2SW1CPU, SDRAMPCI
OnOn60MHz30MHz
OnOff66MHz33MHz
OffOn75MHz30MHz
OnOff83MHz33MHz
(For ICS9148 CLK Generator)
SW3SW2SW1CPU, SDRAMPCI
OffOffOn60MHz30MHz
*OffOffOff66MHz33MHz
OnOnOff75MHz30MHz
OnOffOn83MHz33MHz
(Core/Bus CLK Rate)
SW6SW5SW4P55CPCI
* OffOffOf3.530MHz
OffOffOn233MHz
OffOnOn2.530MHz
OffOnOff333MHz
*OnOffOn  
OnOnOff  
OnOffOff  

Connector Functions

ConnectorFunction
CD1CD-In
PH2Speaker Out
JP13Fan Connector or Power Supply
CN10Power Button
CN20Active LED
CN11Power LED - Pin1 (Green), Pin2 (Orange), Pin3 (Black)

Memory Upgrade

The system memory is upgradable to a maximum of 256MB via two 168-pin DIMM sockets onboard.These DIMM sockets accept 128MB, 3.3V Synchronous DRAM modules in capacities of 32-, 64-, and 128-MB.


BIOS

How do I enter the BIOS Setup Utility?

You can access the BIOS Setup Utility by pressing CTRL+ALT+ESC as the system is booting. At the bottom of the second start up screen you should see "To enter setup, press CTRL_ALT_ESC".

Note: If the system displays the Acer Splash Screen, once you hear the beep, you should begin pressing CTRL+ALT+ESC.You may need to press CTRL+ALT+ESC continuously until you access the BIOS setup screen.