Intel DH55TC DH55TC Technical Product Specification - Page 52

Electrical Considerations - memory voltage

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Intel Desktop Board DH55TC Technical Product Specification 2.5 Electrical Considerations 2.5.1 Power Supply Considerations CAUTION The +5 V standby line from the power supply must be capable of providing adequate +5 V standby current. Failure to do so can damage the power supply. The total amount of standby current required depends on the wake devices supported and manufacturing options. Additional power required will depend on configurations chosen by the integrator. The power supply must comply with the indicated parameters of the ATX form factor specification. • The potential relation between 3.3 VDC and +5 VDC power rails • The current capability of the +5 VSB line • All timing parameters • All voltage tolerances For example, for a typical system configuration of a 95 W processor (see Section 1.4 on page 14 for information on supported processors), up to 16 GB DDR3 memory, integrated graphics, one hard disk drive, one optical drive, and all board peripherals enabled, the minimum recommended power supply is about 320 W with current ratings as listed in Table 27. Table 27. Minimum Recommended Power Supply Current Values Output Voltage 3.3 V 5 V +12 V1 +12 V2 -12 V 5 VSB Current 5 A 12 A 10 A 10 A 0.1 A 0.5 A NOTE +12 V1 denotes the 12 V rail at the 2 x 12 power header +12 V2 denotes the 12 V rail at the 2 x 2 power header For information about Selecting an appropriate power supply Refer to http://www.intel.com/support/motherboards/desktop/sb/C S-026472.htm 52

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Intel Desktop Board DH55TC Technical Product Specification
52
2.5
Electrical Considerations
2.5.1
Power Supply Considerations
CAUTION
The +5 V standby line from the power supply must be capable of providing adequate
+5 V standby current.
Failure to do so can damage the power supply.
The total
amount of standby current required depends on the wake devices supported and
manufacturing options.
Additional power required will depend on configurations chosen by the integrator.
The power supply must comply with the indicated parameters of the ATX form factor
specification.
•
The potential relation between 3.3 VDC and +5 VDC power rails
•
The current capability of the +5 VSB line
•
All timing parameters
•
All voltage tolerances
For example, for a typical system configuration of a 95 W processor (see Section 1.4
on page 14 for information on supported processors), up to 16 GB DDR3 memory,
integrated graphics, one hard disk drive, one optical drive, and all board peripherals
enabled, the minimum recommended power supply is about 320 W with current
ratings as listed in Table 27.
Table 27.
Minimum Recommended Power Supply Current Values
Output Voltage
3.3 V
5 V
+12 V1
+12 V2
-12 V
5 VSB
Current
5 A
12 A
10 A
10 A
0.1 A
0.5 A
NOTE
+12 V1 denotes the 12 V rail at the 2 x 12 power header
+12 V2 denotes the 12 V rail at the 2 x 2 power header
For information about
Refer to
Selecting an appropriate power supply
S-026472.htm