Pcie* Aic Auxiliary Power Connectors; Figure 3-2: Duty Cycle Definition; Table 3-4: Duty Cycle Example Test Criteria For A 1000W Psu - Rms - Intel ATX 3.0 Design Manual

PCI Express* Add-in Card Considerations

Figure 3-2: Duty Cycle Definition

Table 3-4: Duty Cycle Example Test Criteria for a 1000W PSU – RMS
Duty Cycle
10%
20%
25%
50%
NOTES:
3.2

PCIe* AIC Auxiliary Power Connectors

The PCIe CEM 5.0 specification defines three 12V Auxiliary Power Connectors to be
used with PCIe Add-in Cards
1. 75 W 2x3 connector
0. 150 W 2x4 connector
1. 600 W 2x6 12VHPWR connector (new in PCIe 5.0)
Section 5.2
that the Voltage Tolerance listed below is different from this Power Supply Design
Guide for the Low voltage tolerance
for voltage drop on a motherboard from the Main Power Connector to the
motherboard to the PCIe* Edge Card Connector.
336521
Time for Power
Excursion (T
100 µs
1 ms
10 ms
100 ms
1. The Capacitive Load mentioned in
scenario.
2. Total Test time for each Power Excursion testing time is expected to last until
thermal saturation occurs in the PSU.
3. More details about test time for each row above and formulas to calculate T
power values for different PSU sizes will be detailed in the "Desktop Platform Form
Factor Power Supply Test Plan – Doc #338448
specifies the Mechanical information for all DC Power Connectors. Note
Time Constant
) (T )
E C
900 µs
4 ms
30 ms
100 ms
Table 4-7 is expected to be applied to this test
Table 4-2, the reason for the difference is allowing
Table 3-5
Power @ Power
T @ T
E C
2000 W 817 W
1800 W 663 W
1600 W 693 W
1200 W 749 W
and T
C
shows the voltage
E
25