Titan III PCI EISA Motherboard User’s Guide
6
Step 2 Configure CPU
J1, J2, J3, and J18 select the CPU voltage. J6, J7, J8, J13, and J15 set the
CPU speed.
Important
Perform the following steps before installing a CPU.
3.3V CPU Power J1, J2, J3, and J18 are six-pin bergs that select the 3.3V CPU power source.
You can provide 3.3V through regulator (default) or 3.3V power supply.
From Regulator Set J1, J2, J13, and J18 as follows to configure 3.3V power from the
regulator:
J2
Pin 1
Pin 6
2
3
4
5
J3
Pin 1
Pin 6
2
3
4
5
J1
Pin 1
Pin 6
2
3
4
5
Pin 1
Pin 6
2
3
4
5
Pin 1
Pin 6
2
3
4
5
J18
From 3.3V Power Supply Set J1, J2, J3, and J18 as follows to configure 3.3V power from the
3.3V power supply:
Pin 1
Pin 6
2
3
4
5
J18
J1
Pin 1
Pin 6
2
3
4
5
J2
Pin 1
Pin 6
2
3
4
5
Pin 1
Pin 6
2
3
4
5
Pin 1
Pin 6
2
3
4
5
J3
Cont’d