Table 8-1 L1 Controller Functions - Silicon Graphics Origin 3900 User Manual

Function
Controls voltage regulator modules (VRMs).
Controls voltage margining within the brick.
Controls and monitors fan speed.
Monitors voltage and reports failures.
Monitors and reports operating temperature and status of 48-VDC input
power.
Monitors and controls LEDs.
Reads system identification (ID) PROMs.
Monitors the On/Off power switch.
Monitors the reset switch and the nonmaskable interrupt (NMI) switch.
Reports the population of the PCI or XIO cards and the power levels of the
card slots.
Powers on the card slots and their associated LEDs.
007-4653-001
Table 8-1 L1 Controller Functions
I/O bricks
Cx-brick R-brick (IX, PX, X)
X X X
X X X
X X
X X X
X X X
X X X
X X X
X X X
X
X
X
L1 Controller
Graphics bricks
(G, N, V)
X
X
X
X
X
X
X
X
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