PCChips M536


Jumper Settings
Bios Upgrades

Jumper Settings


J1G1COM2/4 Connector
J1H1ATX Power Supply Connector
J1J1PS/2 Mouse Connector
J1J2AT Power Supply Connectors
J1K1PS/2 Keyboard Connector
J1L1COM1/3 Connector
JP3H1VRM Voltage Regulator Output Selectors IO
JP4H1VRM Voltage Regulator Output Selectors CORE
JP5I1-2CPU Internal Clock Speed Selectors
JP6D1-3Board Freq Selectors
JP7A1Flash ROM Voltage Selector
JP7E1Internal/External Battery Connector
JP7L1-3DIMM Socket Voltage Selectors
JP8E1AT-Bus clock divisor
JP10B2CMOS RAM Clear
JP10B1Keylock & Power LED Connector
JP10B3Speaker Connector
JP10C2HDD LED Connector
JP10C3Reset Switch Connector
J10D1, J10D2Universal Serial Bus Connector


J10D1, J10D2 Universal Serial Bus Connector:


Pin Description
1 +5 V DC
2 Data -
3 Data +
4 Ground


JP10C3 Reset Switch Connector:


JP10C3Reset Switch Connector
OpenNormal
ClosedReset


JP10C CMOS RAM Clear:


JP10C3CMOS RAM Clear
OpenNormal
ClosedClear CMOS


JP7L1-3 DIMM Socket Voltage Selectors:


JP7L1-3DIMM Socket Voltage Selectors
1-25V (usually EDO-DIMMs)
2-33.3V (SDRam)


JP7A1 Flash ROM Voltage Selector:


JP7A1Flash ROM Voltage Selector
1-2Eprom / 5V Flash Rom
2-312V Flash Rom


JP6D1-3 Board Freq Selectors:


JP6D1-3 Board Freq Selectors
 40 MHz50 MHz55 MHz60 MHz66 MHz75 MHz
JP6D3   2-3  
JP6D2   1-2  
JP6D1   1-2  
Unfortunately the scanned manual is not readable here.
So you have to try it yourself.
The setting for 40Mhz is useless.


AT-Bus clock divisor:


Depending on the Board Freq this Jumpers needs to be adjusted.
The resulting AT-Bus Frequency should not exceed 8.5MHz.
 
SettingBoard FreqPCI = Board Freq / 2AT-Bus
1-2:PCI/466 MHz33 Mhz8.25 MHz
1-2:PCI/466 MHz30 Mhz7.5 MHz
1-2:PCI/455 MHz27.5 Mhz6.8 MHz
2-3:PCI/350 MHz25 Mhz8.33 MHz


JP4H1 VRM Voltage Regulator Output Selector:


JP4H1IO-Voltage
1-23.5V
2-33.3V


JP4H1 VRM Voltage Regulator Output Selectors:


JP4H1CORE-Voltage
None2.5V
D2.7V
C2.8V
B2.9V
E3.3V
A3.5V


JP5I1-2 CPU Internal Clock Speed Selectors:


JP5I1-2CPU Internal Clock Speed Selectors
MultJP5I1JP5I2
1.5x/3.5xOffOff
2.0xOffOn
2.5xOnOn
3.0xOnOff


Bios Upgrades


Here is a saved version from a M536 (Bios-ID:03/03/97-i430VX-02071997C-00).
It looks like this is very much the same version as used on all the other i430VX based PCChips boards.
You may try the latest Bios for the other VX-based boards (10/16/97S),
which supports HHDs over 8GB and up to 32GB.
Or try the patched version here for support up to 64GB.
I HAVEN'T HAD THE OPPURTUNITY TO TEST IT, SO USE IT AT YOUR OWN RISK!!


If you have questions, contact me

Last Update: 07/22/2001

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