1.    Inrush currents occur only at initial application of power, no inrush occurs during normal power off-on cycle. 
2.    For altitudes above 915 meters, the maximum temperature limit is derated by 1 degree C for every 137 meters of 
elevation above 915 meters. 
3.    See “Noise Emission Notes” on page 336 for definitions of noise emissions positions. 
4.    For systems with FC 6120: 80/160 GB Internal Tape Drive with VXA Technology or FC 6134: 60/150 GB 16-bit 
8mm Internal Tape Drive, the maximum operating temperature is limited. For additional information about this 
limitation, refer to the following table.
 
  
 The following table lists maximum operating temperatures for system features at various altitudes. 
 
0  305 m 
(1000 ft) 
610 m 
(2000 ft) 
914 m 
(3000 ft) 
1219 m 
(4000 ft) 
1524 m 
(5000 ft) 
1829 m 
(6000 ft) 
2134 m 
(7000 ft) 
FC 6120  34°C
(93°F) 
34°C
(93°F) 
33°C
(91°F) 
33°C
(91°F) 
33°C
(91°F) 
32°C
(90°F) 
32°C
(90°F) 
31°C
(88°F) 
FC 6134  32°C
(90°F) 
32°C
(90°F) 
31°C
(88°F) 
31°C
(88°F) 
31°C
(88°F) 
30°C
(86°F) 
30°C
(86°F) 
30°C
(86°F) 
  
7026 Model 6M1 CEC Drawer 
The RS/6000 Enterprise Server Model M80 and Eserver pSeries 660 Model 6M1 systems are 
multiprocessor, multibus systems packaged in two to five drawers. The processors and memory are 
packaged in an 8 EIA-unit central electronics complex (CEC) drawer, and the optional DASD and I/O 
devices are in 5 EIA-unit I/O drawers. The basic system consists of one CEC drawer and one I/O drawer 
in the same rack. The system is expanded by adding up to three additional I/O drawers in a minimum of 
two racks. For technical information on the I/O Drawer see “I/O Drawer 5 EIA” on page 79.
 
 
Dimensions 
Height 
Width 
Depth
 
  
355.6 mm 
445.5 mm 
825.5 mm
 
  
14.0 in. 
17.5 in. 
32.5 in.
 
Weight 
Minimum 
Maximum
 
  
69.7 kg 
74.6 kg
 
  
158 lbs. 
169 lbs.
 
 
 
Electrical 
Power source loading typical in kVA 
Power source loading maximum in kVA 
Voltage range (V ac) 
Frequency (hertz) 
Thermal output (typical) 
  
Thermal output (maximum) 
  
Power requirements (typical) 
  
Power requirements (maximum) 
  
Power factor 
Inrush current 
Maximum altitude
 
  
0.45 
0.69 
200 to 240 
50 or 60 
M80: 1265 Btu/hr 
6M1: 1450 Btu/hr 
M80: 1877 Btu/hr 
6M1: 2218 Btu/hr 
M80: 370 watts 
6M1: 425 watts 
M80: 550 watts 
6M1: 650 watts 
0.95 
34 amps 
2135 m (7000 ft.)
 
 
 
Temperature Requirements  Operating⁴ 
10 to 38°C 
(50 to 100°F)
 
Non-Operating (Power Off) 
10 to 52°C 
(50 to 125°F)
 
 
 
70  Site and Hardware Planning Information