Figure 2–1 shows the optimal order for the full upgrade. The steps include:
1
The XMI-1 card cage must be removed first. This step requires two
people to guide the unit from the front and the back at the same time.
The daughter card from the XMI-1 card cage will be used on the XMI-2
card cage.
2
The H7214 power regulator above and to the right of the XMI card
cage is removed next. If the other XMI H7214 regulator is at A or B
revision level (120 amps), you also need to exchange this H7214 with a
C revision level or above (130 amps).
3
Install the H7242 +3.3V power regulator.
4
Install the XMI-2 card cage, after the daughter card from the XMI-1
card cage has been attached. This unit comes with preassembled bus
bars.
5
Replace the XTC power sequencer module, which is mounted on the
back of the system control assembly.
6
Remove the battery backup unit, if the system has one. To replace
the battery backup unit, follow the procedures described in
VAX 6000:
Installing the H7236-A Battery Backup Option
.
7
Replace the H7206-A power and logic unit with an H7206-B unit.
Three new cables are installed in the steps above. For cable information,
see Section 1.6.
XMI-1 to XMI-2 Conversion
2–3
Содержание VAX 6000 XMI Series
Страница 82: ...A 6 VAX 6000 XMI Conversion Manual...