VS440FX Motherboard Technical Product Specification
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1.16 Power Supply Requirements
The VS440FX motherboard is designed to operate with a minimum 200-watt ATX power supply
for typical configurations or a higher wattage supply for heavily loaded configurations. The power
supply must meet the following requirements:
• Rise time of 2 ms to 20 ms
• Delay of 100 ms (min) from Reset to Powergood
• Power down warning of 1 ms (min)
The +3.3 V output must reach its minimum regulation level within ±20 ms of the +5 V output
reaching its minimum regulation level
1.17 Power Consumption
Tables 6 and 7 list voltage and current specifications for a computer that contains the motherboard,
a 200 MHz Pentium Pro processor, 32 MB EDO DRAM, 256 KB cache, 3.5-inch floppy drive,
1.6 GB hard drive, 4X IDE CD-ROM, and a PCI graphics card. This information is preliminary
and is provided only as a guide for calculating approximate power usage with additional resources
added.
Table 6. DC Voltage
DC Voltage Acceptable Tolerance
+3.3 V ± 5%
+5 V ± 5%
-5 V ± 5%
+12 V ± 5%
-12 V ± 5%
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