Intel DZ87KLT-75K User Manual

Intel Desktop Board DZ87KLT-75K Technical Product Specification
66
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.
Due to improvements in 4
th
generation Intel Core processor power efficiency, the
requirements for the processor’s power supply have changed. More specifically, the
latest Power Supply Design Guide rev 1.3 has indicated a minimum current of 0.05A
on +12 V2DC and recommends 0A. This is to prevent Power Supply Unit (PSU)
protection from triggering during minimum loading.
Intel recommends that system integrators and builders check the latest list of tested
PSUs to find out which are capable of supporting the 4
th
generation Intel Core
processor. This list may be found at: http://www.intel.com/go/powersupplies/
. From
the filters at the top right of the page, set 12V2 Min Load 0A to “Yes” to see which
PSUs are capable of supporting the processor’s new power requirements.
The power supply must comply with the indicated parameters of the ATX form factor
specification.
• The potential relation between 3.3 V DC and +5 V DC power rails
• The current capability of the +5 VSB line
• All timing parameters
• All voltage tolerances
For example, for a system consisting of a supported 95 W processor (see Section 1.3
on page 17 for a list of supported processors), 4 GB DDR3 RAM, one high end video
card, one hard disk drive, one optical drive, and all board peripherals enabled, the
minimum recommended power supply is 460 W. Table 31 lists the recommended
power supply current values.
Table 31. Recommended Power Supply Current Values
Output Voltage 3.3 V 5 V 12 V1 12 V2 -12 V 5 VSB
Current 22 A 20 A 16 A 16 A 0.3 A 1.5 A
For information about Refer to
Selecting an appropriate power supply http://support.intel.com/support/motherboards/desktop/sb
/CS-026472.htm
Selecting a power supply capable of
supporting the 4
th
generation Intel Core
processor
http://www.intel.com/go/powersupplies/

Intel DZ87KLT-75K Specifications

General

Brand	Intel
Model	DZ87KLT-75K
Category	Motherboard
Language	English