Thunder i7522 S5 362 Chapter 2 : Choose Proper Parts F o r Your System
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Power requirements
Check your power supply specifications to ensure sufficient power currents for each
power rail based on your system configuration.
The major system components/parts power sources are listed below as reference:
Components/Parts
Main Power Source
Power Connectors
CPU1
+12V_CPU1
8-pin CPU power connector
CPU2
+12V_CPU2
8-pin CPU power connector
Memory (Normal)
+5V
24- pin power connector
Memory
(Suspend to RAM)
+5Vstandby
24- pin power connector
System logic
+3.3V
24- pin power connector
X8 PCI -Express
+12V and +3.3V
24- pin power connector
X1 PCI -Express
+12V and +3.3V
24- pin power connector
64- bit PCI -X
+12V, +5V, +3.3V and
3.3Vstandby
24- pin power connector
32- bit PCI
+12V, +5V and +3.3V
24- pin power connector
Cooling fans
+12V
24- pin power connector
IDE/SATA hard drives
+12V and +5V
From PSU
CDROM/DVD drives
+12V and +5V
From PSU
Visit Tyan’s web site for the power supply recommendation list at:
www.tyan.com
