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TechNotes D323x-S_D3243-S V1.2 Page 40 of 98
http://www.fujitsu.com/fts/products/computing/pc/accessories/mainboards
mainboards
Interfaces & Connectors
3.23.2
D3243-S Single 12V Operation [Updated]
(24 pin ATX connector)
(4 pin 12V connector for CPU power)
For single 12V operation
both
connectors 24 pin and 4 pin are required!
24 pin ATX connector:
* Pin 3, 8, 14, 16 (NC) must NOT be used in single 12V mode!
Important Note (Single 12V mode):
The “output” pins (3.3V
out
, 5V
out
, 12V
out
)
provide power for drives or extra devices.
Maximum “output” power ratings:
+3.3V
out
: max. 4A
= combined output current of 3.3V
PCIe x16 and 3.3V
out
pins (1, 2, 12, 13)
+5V
out
: max. 9A
= combined output current of all USB
ports and +5V
out
pins (4, 6, 21, 22, 23)
+12V
out
: max. 6A
depends on output power of single
12V PSU! (12V
out
= pin 20)