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Author Topic: Pins on AmigaOne Mainboard?  (Read 3120 times)

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Offline JurassicCamper

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Re: Pins on AmigaOne Mainboard?
« on: February 11, 2003, 10:46:24 AM »
Quote


JP1: on/off power switch
JP3:IDE Hard Disk LED
J9A1: header for USB 2&3
JP14,JP15 cooling fan connectors
JP18: reset switch
JP13 changes between FSB 100 or 133 (2-1 133FSB) (2-3 100FSB)
thats all you need to know
if you get a black screen after turning the unit on try setting the FSB to 100
(if your computer only works in 100FSB you need different ramalso try running with only one stickof ram first )

be carful the some of the jumpers on the motherboard control voltages to the chips don't mess with them

ohh the clock multiplier for the PPC chip is j1:

1100 =1.0
1011 =2.0
1111 =2.5
0111 =3.0
0001 =3.5
0101 =4.0
1000 =4.5
0100 =5.0
0110 =5.5
0010 =6.0
1010 =6.5
1101 =7.0
1110 =7.5
0011 =8.0


Cool have you tryed to overclock the board ?
Was it stable ?
I knows its against the warranty but who'd be
able to prove it if it did go wrong eventually.

So using  the 133.33 Mhz FSB it maybe possible to
clock the G4 boards, with extra cooling  to....


x6.5..... 866 Mhz
x7.0..... 933 Mhz
x7.5..... 1000 Mhz
x8.0..... 1066 Mhz

A possible 25% increase in speed
Same as percentage as taking a 060 from 50Mhz to 66Mhz




A1200T PPC 330Mhz in a Custom Modified Fractal Design R3 Case