SGI 2400 Manuel de service télécharger pdf (Page 140)

120

Chapter 8: System Maintenance and Troubleshooting

MSC Shutdown

Under speciﬁc circumstances, the MSC may shut down the system. Usually this occurs

when the operating environment becomes too warm because of fan failure, high ambient

temperatures, or a combination of the two.

The System Controller will automatically shut down the system and light the “Over

Temperature Fault” LED if any of the following situations occur:

• failure of two or more of the system’s nine fans

• failure of one fan plus a high ambient temperature

• failure of any (critical) fan directly responsible for cooling the power supply or a

router board

• an unacceptably high ambient temperature

Only the last situation can be dealt with completely by the end user. The ﬁrst three

require a service call by a qualiﬁed support technician.

Fixing the MSC Shutdown

If you determine that a critical fan or fans have failed, you should immediately place a

service call. The system is not usable until the faulty fan(s) are replaced.

If the problem involves the combined failure of a single noncritical fan and a high

ambient temperature, you should place a service call. You may be able to keep the system

running by lowering the ambient temperature of the operating environment while

waiting for service.

You could

• lower the air conditioning temperature

• move the system to a cooler environment

• use a portable fan(s) to circulate more air around the system

• use a portable air-conditioner to lower the temperature of the system

If the problem is simply a high ambient temperature, you will need to either lower the

work environment temperature or move the system to an area with a lower ambient

temperature.

1 2 ... 135 136 137 138 139 140 141 142 143 144 145 146

Pas de commentaire

SGI 2400 Manuel de service Page 140