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M a i n b o a r d
Power regulator modules
The mainboard has sockets for up to six power regulator modules. They must be VRM 8.3-
compliant, each pair of processors needing three modules.
This means that if you are only fitting one extra processor you will need to fit two modules.
The modules should be purchased at the same time as any processor. Contact your Mitsubishi
Electric PC dealership.
1.
Read through the instructions on page 4 of this chapter and any additional cautions given
here.
2.
Remove the new power modules from their antistatic package and place them on a grounded,
static-free surface or conductive foam pad.
3.
New modules should be fitted from the bottom socket upwards, into the next available empty
socket (see table at foot of page).
4.
Press the module firmly into the socket and make sure the retaining clips click into place.
5.
Reinstall the foam cover.
6.
Reinstall the access cover using the original screws.
To remove a module at any time just press the retaining clips down and pull the module from its
socket. If you are not removing processors, a replacement module must be fitted.
In conjunction with the table below, refer to the illustration on page 2 of this chapter for correct
component fitting.
Number of processors fitted
1 (socket marked 'V')
2 (sockets marked 'V' and 'W')
3 (sockets marked 'V', 'W' and 'X')
4 (sockets marked 'V', 'W', 'X' and 'BB')
5/10
FT5000 HANDBOOK
3
1
1
VRM socket
2
Module retention clip
3
Voltage Regulator Module (VRM)
2
VRMs required
2 (sockets marked 'U' and 'T')
3 (sockets marked 'U', 'T' and 'S')
5 (sockets marked 'U', 'T', 'S', 'R' and 'Q')
6 (sockets marked 'U', 'T', 'S', 'R', 'Q' and 'P')
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