Articles on: 12VHPWR ATX 3.0 PCIE 5.0

Will I get more power by using 4 x 8pin in 12VHPWR?

NO, you will not.

There are 4 power limit modes in 12VHPWR, which are 150w, 300w, 450w, and 600w.

By connecting Sense0/Sense1 signal pins to GND, the 600w is enabled, regardless of how many 8pin are connected to the 12VHPWR connector.

For example, you are using a 2 x 8pin to 16pin cable with 600w enabled. The max power limit is 600w.

You cannot and will not get any extra power limit over 600w by connecting 4 x 8pin. 600w is the max power limit mode in 12VHPWR.

All 12VPHWR cables you see in the market are all using the 600w mode by default.

RTX 4090 is a 450w card, 600w means 133% of 450w.

Updated on: 27/10/2022

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