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Power Supply For 10850k and MSI Z490 Gaming Edge

landstrom27

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Hello, this is my first post. I'm building a 10850k build on a MSI Z490 Gaming Edge mobo and noticed the extra 4 pin cpu power connector. I have everything but cpu, should be arriving tomorrow. The power supply I just put in doesn't have the extra 4pin cpu connector though, and is a non-modular psu. I've read that you don't need to use the extra 4 pin unless you plan to do extreme overclocking, but I've also read that you do need it even if you don't overclock. It doesn't really say anything about it in the manual except that it needs to be connected. I have a Corsair HX 750 in my 4770k build. It's an older version than the new ones though. It four cpu/pcie 8 pin outputs. Would this power supply work if I can find the right cable for it? What's weird is cpu power are +12 on one side and ground on the other, which is different, I thought, than pcie, but I take it you can connect any of the cpu/pcie outputs to the cpu or graphics cards? Would the HX 750 work if I got this cable?

Not sure about the keying on the mobo for the extra four pin, but I can look if it will help.

I do plan on overclocking it. I don't know what would be considered extreme for this cpu, but I'm hoping to get it to at least 5.1 ghz. I was planning on taking the PSU I just put in back anyway for a better one. It's a EVGA 700W Bronze, non modular. I wonder if the newer HX 750 has the extra four pin or if there are others that have it?
 
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landstrom27

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Ok, I guess I'll trust that it don't need it and go ahead and fire it up when the cpu arrives tomorrow. Say it ends up bugging me though and I wanted to connect the extra 4pin and see how far I could go with overclocking, would this cable work?

Also, is the EVGA - 700W ATX12V /EPS12V 80 Plus Bronze an OK PSU for this system? It will have an RTX 2070 S in it til I can get a 3080. Thanks for your help
 
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Benchmark Scores Faster than yours... I'd bet on it. :)
Again, you don't need to connect the extra 4-pin to overclock. It will not help you.

No that cable won't work. You have a single 8-pin only, right? So if you plug that in it takes the 8 to 4+4. What you would want is molex to to 4-pin EPS.... but you really don't even want to bother. Seriously. Don't. :)
 

hat

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That power supply you mentioned should have a 4+4 connection for CPU power. That means it's an 8 pin connector, but it's split so you can easily use it with a motherboard that only takes a 4 pin connector. Look harder... unless the power supply you're actually using is a different model?
 
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Ok, I guess I'll trust that it don't need it and go ahead and fire it up when the cpu arrives tomorrow. Say it ends up bugging me though and I wanted to connect the extra 4pin and see how far I could go with overclocking, would this cable work?

Also, is the EVGA - 700W ATX12V /EPS12V 80 Plus Bronze an OK PSU for this system? It will have an RTX 2070 S in it til I can get a 3080. Thanks for your help
When it comes to power supplies for Ampere, you might want to let the dust settle for a month or two as things get worked out, from Nvidia's end, but also from tech community as they figure things out. Stability seems shaky unless you've got a well oversized PSU. Would not buy this yet.
 
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8 Pin EPS can/should be able to supply 336W

you "can" reach that but only with chilled water and ridiculous voltages at ~5.5 Ghz in Prime95.
 
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