![]() ![]() but the cheap sata connectors are usually so bad that I wouldn't trust them for more than around 2.5-3A per connector, or around 25-30 watts. sata is rated for lower current, 4.5A on 12v. With such cards, you'd be relatively safe to use the more basic single molex to pci-e 6pin adapter, or use the 2 molex ->pci-e 6pin adapter with just one molex in use (most video cards would still work in that configuration)īut overall, it's safer and better to just use both molex connectors.Īlso note in general it's better to use molex - pci-e 6pin instead of sata - pci-e 6pin. ![]() such a card would consume around 50-60 watts from the pci-e slot, and only around 20-30 watts from the pci-e 6 pin connector. Now, if you have a video card that barely needs a 6 pin molex connector, like let's say a card which consumes 70-90 watts. So, the adapter with two molex connectors is better because that maximum amount of 75w is split between the two molex connectors, so each molex connector only has to transfer 75w / 2 = 37.5 watts.īasically, it makes connectors heat less and you also have a bit of a redundancy : if you have a loose molex connector, there's the other one to take the burden. ![]() if there's too high current and too much heat, the heat can be enough to melt the plastic of the molex connector and loosen the pins and cause short circuits or random disconnections. so when there's a lot of current flowing between the male and female connectors, the pins in the connectors will start to warm up. there is some resistance at the contact point between the molex pins when you plug them in something. The reason for this limitation is safety. So technically, the connector should not "transfer" more than 12v x 5A = 60 watts through it. The pci-e 6 pin connector is supposed to give up to 75 watts to a video card ( 12v x 6.25A = 75w)Īccording to the standards, a single molex connector is rated for up to 5a on each pin in the connector. TV and gadgets: TCL 50EP680 50" 4K LED + Sharp HT-SB100 75W RMS - Samsung Galaxy Tab A8 10.1" - OnePlus 9 256GB - Olymous Cameda C-160 - GameBoy Color.Networking: Asus RT-N18U - SpeedPort Plus - 35/7 Mbps vDSL - TP-Link TL-WA850RE - TP-Link 5-port 1Gbps switch.Peripherals: LG 32GK650F - Philips 226VL - Logitech G Pro X Superlight with Tiger Ice - HyperX Alloy Origins Core (TKL) - EndGame Gear MPC890 - Genius HF 1250B - Akliam PD4 - Sennheiser HD 560s - Truthear Zero - QKZ x HBB - 7Hz Salnotes Zero - Logitech C270 - Behringer PS400 - BM700 - Colormunki Smile - Speedlink Torid - Jysk Stenderup - LG 24x External DVD writer - Konig smart card reader.Main PC: AMD Ryzen 7 5800X3D - EK AIO 360 D-RGB - Arctic Cooling MX-4 - Asus Prime X570-P - 4x8GB DDR4 3200 HyperX Fury CL16 - Sapphire AMD Radeon 6950XT Nitro+ - 1TB Kingston Fury Renegade - 2TB Kingston Fury Renegade 1TB - 512GB ADATA SU800 - 960GB Kingston A400 - Seasonic PX-850 850W - custom black ATX and EPS cables - Fractal Design Define R5 Blackout - Windows - 3 Arctic Cooling P14 PWM PST - 5 Arctic Cooling P12 PWM PST.Computer Engineering), Senior IT advisor in a hospital, 30 years of gaming, 20 years of computer enthusiasm, Geek, Trekkie, anime fan The GTX1050ti is going to perform better than an AMD R7 260X anyway. You should to replace the PSU with one that is suitable. The 1050ti only uses 75W and depending on the card might not have a PCIe connector and will draw its power through the PCIe slot from the motherboard. The R7 260X will use around 120W by itself. The CPU and GPU will both use the 12V rail, which according to the label on that power supply it can only output a maximum of 16A on the 12V rail, which is only 192W. "P4-450W" is the model number of the power supply, not the wattage it is rated to output. It doesn't have a 6 pin PCIe power connector because it's really not supposed to run graphics cards. That power supply must be around 20 years old. ![]() 5V was removed from the ATX specification in the early 2000s. You'll burn out the 4 pin molex cable by drawing too much current through it. The 6 pin PCIe connector uses 3x 12V wires to deliver the power, while the 4pin peripheral connector only has a single 12V wire. 4pin Molex peripheral connectors to 6pin PCIe connectors are a bad idea. ![]()
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