![]() ![]() that's no more than extra 20WĮven a 450W good quality PSU can power a gaming PC with ease, especially considering that actual games don't hit those power levels (only synthetic tests/power virus software, like Furmark)ħ50 is COMPLETE OVERKILL for anything other than extreme overclocking/record breaking stuff. ![]() Extra HDDs are 5W/drive, even if you have lots of USB stuff plugged in. GPUs have become quite efficient and other than the ultra-high-end GTX 1080Ti, 2080Ti or Vega 7. CPU consumes at most 150W, and that is when heavily overclocked I have no idea what the purpose of 750W PSU's and up are these days, especially on mainstream platform. An 8-pin connector can deliver up to 384 watts of power, which is twice as much as a 4-pin connector. It has four yellow wires and four black wires, and it plugs into an 8-pin socket on the motherboard. The extra +4 (or even +8 on ultra-high-end boards) is for extreme overclocking (aka LN2) and can be safely ignored. An 8-pin CPU power connector is an optional connector for some CPUs. You can connect the 8pin only using those 4+4 and forget about the other one. What's the deal with that? If the second (4pin) 12V connector wasn't needed at all - they wouldn't add it to the motherboards, right? And to plug both 8pin and 4pin connectors I need to buy either a Corsair RM850i (since even the 750W one has only one 12V connector) or at least a 750W PSU from some other manufacturer. Can I use the 2 cables 8 pin, then detach the second one and connect the 4 pin connector. My PSU came with 2 detachable 8-pin connector (4+4). Which means with a 650W PSU (or even a Corsair RM750i) you're able to use only the 8pin connector, because your PSU only has one, leaving the 4pin connector on your motherboard not used. So my motherboard has an 8-pin 12v connector + an additional 4 pin atx power connector. The same goes for be quiet! Straight Power 11 - 650W has one 4+4pin cable, 750W has one "P8" (8pin I suppose) and one "P4+4" connector.Īt the same time, all the better motherboards (AsRock X470 Taichi, ASUS Crosshair VI Hero etc.) have one 8pin connector AND one 4pin connector to supply a CPU. This connector is characterized by having 4 pins or 8 pins, which send the voltage to the VRM phases, from where they are distributed to the processor. Seasonic Focus Plus Gold/Platinum 650W also has only one 4+4pin cable, to have two 4+4pin cables you need to buy at least a 750W PSU. So, at least for Ryzen 3000, I think you need to connect both CPU connectors to avoid Windows 10 freeze.Hi! So, I almost chose the Corsair RM650i/750i PSU but then found out it had only one CPU power connector which is 4+4pin. 1 mobo is asrock x470 taichi psu is seasonic prime ultra gold 650w cpu is ryzen 7 2700x and my gpu is palit gtx 680 Jetstream so my problem is that my psu only have 8pin cpu connector and my. I’ve replaced the PSU with my 10 year’s old Corsair HX520 (which had both connectors) and the system is perfectly stable since. It draws around 100~150 watt of power without screen, far from PSU 550 watts maximum power. A single PCIe 8pin cable and connectors maximum current. My system also hosts a Geforce 1070 and 3 SATA SSDs. According to the power supply connector overuse definition from SilverStone warranty information. If you want to connect our PSU into a 4-pin EPS. ![]() If it is a 6 pin then it is for a graphics card. The motherboard connectors also have the same square and rounded arrangement so the power cable only fits. Our power supply units (PSUs) use an 8-pin EPS12v CPU cable that can be split into two 4-pin connectors. There is only 4 or 8 pin for CPU, and it is fine to run them on each other (they are keyed to only fit one way). If you look carefully at the picture above you can see that four of the pins are square and the other four have rounded corners. ![]() I tried with that single connector and the system (Windows 10) froze after several minutes of normal use (CPU was not under stress). The 8 pin 12 volt cable is polarized so it can only be plugged into the 8 pin motherboard connector correctly. I’ve bought a Ryzen 3700X (65 watts TDP), a MSI X570-A PRO (with also both connectors) and a Seasonic FOCUS Plus Gold 550 as PSU.Īs you, I discovered the two CPU connectors on the motherboard and that the PSU only had a single CPU 8 pin (2x4) connector. ![]()
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