wlcc7223 wrote:
給個小小的參考
以極限值來說，外接6P一個供應75W(有錯請幫修正一下orz)
PCI-e X16一條供應75W(我只知1.0版是75W沒錯)
也就是說GTX465外接雙6P狀況下 冒汗
最高功耗可以看作是75*3=225W
當然實際上不太可能會這麼高，想想HD5850一樣是雙6P也定在15x左右(AMD自己說的)
若顯卡、PSU、主機板都會搞卍解就另當別論 XD
PCI-e的插槽確實都是只能提供75W
只是2.0後新增了外部輸入電源規範
有6 pin(最大提供75W)和8 pin(最大提供150W)兩種版本
底下是一些說明~
The power spec has also been increased. A new version of the power supply connector that is used for graphics cards that need more power than the slot can deliver (sometimes called a PEG connector, for PCI-Express Graphics) has been introduced, changing from 6 pins to 8.
A single x16 card may now draw up to 300 W of power
(75 W from the slot itself, 150 W from an 8-pin PEG connector, 75 W from a second PEG connector),
up from 225 W
(75 W from the slot, 75 W each from 2 6-pin PEG connectors)
or originally 150 W
(75 W from the slot, 75 W from a 6-pin PEG connector).
pci-express-2-0
)
