Intel SYSTEM 310 Hardware Integration Manual page 31

System 310
Calculating System Compatibility
The number of amps each slot can handle is limited by the edge
connector. The MULT BUS Handbook, listed in the Preface, contains
all the MULTIBUS specifications.
NOTE
If you apply the power formula (P=IE) to the
data in Table 3-1, you exceed 220 watts.
Since you must not configure a system that
draws more than 220 watts, do not design a
system that uses the maximum number of
amps at each voltage simultaneously.
CALCULA ING DC POWER REQUIREMEN S
Use Table 3-2 to help you decide if your planned configuration is
within the guidelines listed in Table 3-1. Table 3-2 shows many
System 310-compatible features and the configurations that already
contain that feature, followed by the maximum amount of current it
draws.
Table 3-2. Maximum DC Power Consumption
Feature Name
(System 310
C nfigurati n)
+5 VDC
(amps)
+12 VDC
(amps)
-12 VDC
(amps)
DC fans
(1,-2,-3,-4,-5)
_
0.33 0.33
86/30 pr cess r b ard
(-1,-2,-3) 4.80 0.02 0.02
286/10 pr cess r b ard
with 80287 device
(-4,-5) 7.10 0.05 0.05
310 firmware
(-1,-2,-3,-4,-5) 0.47
— *
101 mem ry manager (Inf rmati n N t Available)
309 mem ry manager 2.00
— —
304 mem ry b ard
(-2) 1.40
— —
337 math b ard
(-2,-3) 0.45
—
*
218A c ntr ller b ard
(-1,-2,-3,-4,-5) 0.76
—
—
5^-inch diskette drive
(-1,-2,-3,-4,-5) 0.70 1.00
—
215G Winchester c ntr ller
(-2,-3,-5) 3.50
—
10 MB Winchester
hard disk drive
(-2,-3,-5)
0.94 2.40
—
3-3