Other World Computing's - Extra Jumper Settings

G3 AND G4 Jumper Settings
For the Beige G3 Power Macintosh
Courtesy of OWC

Caution: Use at you OWN risk

OWC recommends using extreme caution when attempting to overclock your ZIF processor.
Some indications of too high a clock speed are instability, crashing, video artifacts, no video, no start chime.

The most common settings have been boldfaced.
S = Jumper
x = NO Jumper

BUS-Clock
PCI-Clock
CPU-Clock
PLL
J1
J2
J3
J4
J5
J6
J7
J8
J9
66 MHz
33 MHz
200 MHz
x3
x
S
S
S
S
S
S
x
x
66 MHz
33 MHz
233 MHz
x3.5
x
x
x
S
S
S
S
x
x
66 MHz
33 MHz
266 MHz
x4
x
S
x
S
S
S
S
x
x
66 MHz
33 MHz
300 MHz
x4.5
S
x
x
x
S
S
S
x
x
66 MHz
33 MHz
333 MHz
x5
x
S
x
x
S
S
S
x
x
66 MHz
33 MHz
366 MHz
x5.5
x
S
S
x
S
S
S
x
x
66 MHz
33 MHz
400 MHz
x6
x
x
S
x
S
S
S
x
x
66 MHz
33 MHz
433 MHz
x6.5
S
x
S
x
S
S
S
x
x
66 MHz
33 MHz
466 MHz
x7
S
S
x
S
S
S
S
x
x
66 MHz
33MHz
500 MHz
x7.5
S
S
S
x
S
S
S
x
x
66 MHz
33MHz
533 MHz
x8
x
x
S
S
S
S
S
x
x
75 MHz
30 MHz
225 MHz
x3
x
S
S
S
x
S
S
S
x
75 MHz
30 MHz
263 MHz
x3.5
x
x
x
S
x
S
S
S
x
75 MHz
30 MHz
300 MHz
x4
x
S
x
S
x
S
S
S
x
75 MHz
30 MHz
337 MHz
x4.5
S
x
x
x
x
S
S
S
x
75 MHz
30 MHz
375 MHz
x5
x
S
x
x
x
S
S
S
x
75 MHz
30 MHz
413 MHz
x5.5
x
S
S
x
x
S
S
S
x
75 MHz
30 MHz
450 MHz
x6
x
x
S
x
x
S
S
S
x
75 MHz
30 MHz
487 MHz
x6.5
S
x
S
x
x
S
S
S
x
75 MHz
30 MHz
525 MHz
x7
S
S
x
S
x
S
S
S
x
83 MHz*
33 MHz
250 MHz
x3
x
S
S
S
x
S
x
x
x
83 MHz*
33 MHz
292 MHz
x3.5
x
x
x
S
x
S
x
x
x
83 MHz*
33 MHz
333 MHz
x4
x
S
x
S
x
S
x
x
x
83 MHz*
33 MHz
375 MHz
x4.5
S
x
x
x
x
S
x
x
x
83 MHz*
33 MHz
416 MHz
x5
x
S
x
x
x
S
x
x
x
83 MHz*
33 MHz
458 MHz
x5.5
x
S
S
x
x
S
x
x
x
83 MHz*
33 MHz
500 MHz
x6
x
x
S
x
x
S
x
x
x
83 MHz*
33 MHz
541 MHz
x6.5
S
x
S
x
x
S
x
x
x
83 MHz*
33 MHz
583 MHz
x7
S
S
x
S
x
S
x
x
x