J1 Jumpers

(see p.10 No. 28)

E

D

C B

A 1

Note: The set of J1 jumpers are only for advanced users to adjust the multiplier of CPU. Please follow the table below to adjust the multiplier of CPU. However, the system will work well without the adjustment of multiplier. You do not have to adjust the multiplier for normal usage.

Multiplier

A

B

C

D

E

5x

1-2

1-2

2-3

1-2

1-2

5.5x

2-3

1-2

2-3

1-2

1-2

6x

1-2

2-3

2-3

1-2

1-2

6.5x

2-3

2-3

2-3

1-2

1-2

7x

1-2

1-2

1-2

2-3

1-2

7.5x

2-3

1-2

1-2

2-3

1-2

8x

1-2

2-3

1-2

2-3

1-2

8.5x

2-3

2-3

1-2

2-3

1-2

9x

1-2

1-2

2-3

2-3

1-2

9.5x

2-3

1-2

2-3

2-3

1-2

10x

1-2

2-3

2-3

2-3

1-2

10.5x

2-3

2-3

2-3

2-3

1-2

11x

1-2

1-2

1-2

1-2

1-2

11.5x

2-3

1-2

1-2

1-2

1-2

12x

1-2

2-3

1-2

1-2

1-2

12.5x

2-3

2-3

1-2

1-2

1-2

13x

1-2

1-2

2-3

1-2

2-3

13.5x

2-3

1-2

2-3

1-2

2-3

14x

1-2

2-3

2-3

1-2

2-3

15x

1-2

1-2

1-2

2-3

2-3

16x

1-2

2-3

1-2

2-3

2-3

16.5x

2-3

2-3

1-2

2-3

2-3

17x

1-2

1-2

2-3

2-3

2-3

18x

2-3

1-2

2-3

2-3

2-3

19x

2-3

1-2

1-2

1-2

2-3

20x

2-3

2-3

1-2

1-2

2-3

21x

2-3

2-3

2-3

1-2

2-3

22x

2-3

1-2

1-2

2-3

2-3

23x

1-2

2-3

2-3

2-3

2-3

24x

2-3

2-3

2-3

2-3

2-3

For example, “Athlon XP 2000+” is an 1666MHz CPU: 12.5 (Multiplier) X 133MHz (External frequency) = 1666MHz

FID jumpers setting:

1

The jumper caps are not provided by ASRock. Please understand that ASRock does not guarantee and support the adjustment of multiplier. These jumpers setting may not apply to all multiplier-locked or even some unlocked AMD CPU. Frequencies other than the recommended CPU bus frequencies may cause the instability of the system or damage the CPU.

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