Trimond PH440 NLX
Guide
CPU
The Trimond PH440 NLX motherboard uses Intel’s 440BX chipset, which is optimised for Pentium
®
II 100MHz
Front Side Bus processors, but which also supports 66MHz Pentium
®
II CPUs. Celeron support is achieved by
implementing an alternative microcode from the BIOS update disk. Please contact Mitsubishi if you require
assistance with this. Processor core multipliers can be set using jumper block J1. Core voltage is set by the
processor. Location of J1 shown below.
J1
CPU speed jumper block J1 settings
Ratio
A
B
C
D
66 / 100 MHz frequency
local bus
3.5
on
off
off
on
233 / 350
4
on
on
on
off
266 / 400
4.5
on
off
on
off
300 / 450
5
on
on
off
off
333 / 500
5.5
on
off
off
off
366 / 550
RAM
Three DIMM sockets accept 64-bit wide (72-bit with parity/ECC support) unbuffered PC100 SDRAM modules (or
standard 66MHz SDRAM for 66MHz FSB Pentium
®
II CPUs) with SPD (serial presence detect). Please note that
EDO memory is NOT supported.
Populate DIMM sockets in the following order: MM1, MM2, MM3.
Supported sizes: 16MB, 32MB, 64MB, 128MB, 256MB.
Approved vendors: Please see the current list at
http://www.trimond.com/shared/reference.asp
.
NLX RISER (if supplied)
Keyed connectors for floppy drive, primary and secondary IDE channels are
clearly marked.
JP11 provides the pin-outs for the power-switch, front panel LEDs and PC-
speaker, as follows:
Pins
Designation
1 & 2
Speaker
3 & 4
HD activity LED
1
5 & 6
Power LED
2
7 & 8
ON/OFF switch
JP11
1
Pin 3 - LED cathode, pin 4 - VCC.
2
Pin 5 - yellow cathode, pin 6 - green cathode. Bi-directional LED supported.
KEYBOARD & MOUSE
Orientation as shown.
Mouse
Keyboard
