However, it appears that the power specifications still only allow for 75 watts from the socket and most devices obey this constraint. However, my understanding is that PCIe 2.x+ requires that the slot be capable of delivering 150 watts of sustained power. I can't seem to find a hard source and since I'm not a PCI-SIG member I can't check it against the data sheet. Results Overall Pick Molex Connector Lot, 5 Matched Sets, (4-Circuits) w/18-24 AWG, Pin Size: Standard. PCIe 2.1 and 3.0 can deliver 150 watts when using a 16x slot.Ĭan you please post source of "PCIe 2.1 and 3.0 can deliver 150 watts when using a 16x slot."? So you could take this strip, connect R, G and B together and connect these to one of the middle pins of your molex connector (GND) and the 12v contact to the 12v pin in the molex connector, and youll get a white strip of leds. PCIe 1.x and 2.0 allow for 75 watts of power to be drawn from the motherboard itself when using a 16x slot. Higher power cards should always use dedicated PCIe connectors. However, this is safe for low power cards only. Since your 7770 will only draw a few watts from the auxiliary power connector, it is safe to couple it to a 40 watt Molex connector if you so desire. Since the 7770 is rated at 80 watts, it needs a power connector to make up for the 5 watt shortfall. PCIe 2.1 and 3.0 can deliver 150 watts when using a 16x slot.įor compatibility reasons, many GPU manufacturers will only ever draw 75 watts from the socket itself, drawing the rest from the dedicated PCIe power connectors. FREE delivery Sat, Nov 4 on 35 of items shipped by Amazon. 6 pin PCIe connectors are rated to deliver 75 watts each. J&D 6 Pin PCIe to 2 x 4 Pin Molex LP4 Power Cable Adapter, PCI Express Power Cable Video Card Power Cable Adapter Connects, 2 Molex to 6 Pin PCIe (2 Pack), 6 inch / 15 cm, Black. Molex connectors are rated to deliver 40 watts. The pc seems a bit louder when using the pci-e from the psu rather than the moleex, but maybe its just using the right amount of power now? I don't know But should I use this connector, or the 6pin that comes with the power supply? The molex helps me save room in the case but i don't know if using molex is safe. I have this psu - My question is just that I bought the Sapphire Radeon 7770 and it came with a 4 pin molex-6 pin cable.
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