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PSU conundrum! Please help

S James
By S James
in Power Supplies
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Hello. I previously posted on PSU Tier's topic to get an advice on which one of the available options (that I have, here) is the best. Most of the people, atleast, voted for the CX450.

I had also posted at another forum at the same time, and now they say; "Going with CX450 doesn't give much headroom for future graphic cards. CX450 has only one PCIe connector. So get CX550W or TX550m to be on the safer side." What does that all mean? Headroom? If it means space, I won't be upgrading anytime in the future, so is it still a problem? 
What about the PCIe connector? What purpose does it serve and does it really matter? All in all is the CX450 enough for my build?

My build: i5 8400 + GTX 1060 6GB + H310(open to suggestions) + 8GB RAM + 1 TB

Also, the store I was getting it from said the 450W might be low and recommended me a CX650 which costs alot more (atleast a double.) Do you think they are just trying to get more money? At the discord they said 450W is more than enough.

My original build topic: https://linustechtips.com/main/topic/932008-i5-8400-gtx-1060-6gb-build/

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https://linustechtips.com/topic/932316-psu-conundrum-please-help/
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450W will be fine for this build, assuming the video card in question does not need two Packs connectors, which are the (6 or 8/6+2 pin) power connectors on a video card (your card will either have zero, one or two).

 

Furthermore, the headroom is only important if you're thinking about a videocard upgrade in the future.

 

"We're all in this together, might as well be friends" Tom, Toonami.

 

mini eLiXiVy: my open source 65% mechanical PCB, a build log, PCB anatomy and discussing open source licenses: https://linustechtips.com/topic/1366493-elixivy-a-65-mechanical-keyboard-build-log-pcb-anatomy-and-how-i-open-sourced-this-project/

 

mini_cardboard: a 4% keyboard build log and how keyboards work: https://linustechtips.com/topic/1328547-mini_cardboard-a-4-keyboard-build-log-and-how-keyboards-work/

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Well, graphics cards need PCI-E connectors, (apart from very low-end ones).

The 1060 6GB for example needs a 6-pin or 8-pin, depends which one you get.

However, if you get something like a 1080 in the future, some of them need a 6-pin AND an 8-pin. If you only have an 8-pin, you have a problem.

450W is in theory enough for a 1080, so capacity wise the upgrade would be possible. but you don't have the right connectors so you can't.

 

That's why people say get a 550W. Price difference is very small but they come with 2 pci-e connectors so you can connect a high-end graphics card if you ever want to do that.

Physical size probably basically the same so that doesn't matter.

If you want my attention, quote meh! D: or just stick an @samcool55 in your post :3

Spying on everyone to fight against terrorism is like shooting a mosquito with a cannon

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7 hours ago, S James said:

Hello. I previously posted on PSU Tier's topic to get an advice on which one of the available options (that I have, here) is the best. Most of the people, atleast, voted for the CX450.

I had also posted at another forum at the same time, and now they say; "Going with CX450 doesn't give much headroom for future graphic cards. CX450 has only one PCIe connector. So get CX550W or TX550m to be on the safer side." What does that all mean? Headroom? If it means space, I won't be upgrading anytime in the future, so is it still a problem? 
What about the PCIe connector? What purpose does it serve and does it really matter? All in all is the CX450 enough for my build?

My build: i5 8400 + GTX 1060 6GB + H310(open to suggestions) + 8GB RAM + 1 TB

Also, the store I was getting it from said the 450W might be low and recommended me a CX650 which costs alot more (atleast a double.) Do you think they are just trying to get more money? At the discord they said 450W is more than enough.

My original build topic: https://linustechtips.com/main/topic/932008-i5-8400-gtx-1060-6gb-build/

The CX450 is a good unit. The thing it lacks is the second PCIe connection that you would want if powering something like a 1080 Ti.

My account is almost entirely dormant. Hope you all are having a grand time. Many years of fun were had here.

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34 minutes ago, S James said:

Can it power GTX 1070?

A Founder's Edition, yes. Otherwise you have to see if the 1070 needs more than 8-pins to power it.

My account is almost entirely dormant. Hope you all are having a grand time. Many years of fun were had here.

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9 hours ago, S James said:

Can it power GTX 1070?

It can power up to a 1080 IF the GPU only uses 1 PCIe connector.

Just some bapo nerd from 'Straya

 

PCs:

Main: i7 7700K (5GHz 1.4V) | ASUS GTX 1080 TURBO | 4x8GB Corsair Vengeance 3000MHz (3200MHz CL14 1.365V) | ASUS PRIME Z270-AR | Thermaltake SMART 750P | Coolermaster Seidon 240P | Acer Predator X34 (34" 1440p144Hz GSync IPS)

 

Secondary: i5 3570K | Intel HD4000 (RIP Sapphire HD 6850) | 2x2GB + 1x4GB Kingston 1600MHz | ASUS P8Z68-V LX | Corsair CX650 | Coolermaster Hyper D92 | Sony Bravia VPL-VW80 (108" 1080p60Hz projector)

 

Laptop: i7 7700HQ | GTX 1060 6GB MXM | 2x16GB SODIMM | OEM Acer Motherboard | 17.3" Screen (1080p60Hz IPS)

 

iMac: Core 2 Duo T7400 | ATI Radeon X1600 | 2x1GB 667MHz DDR2 | 20" Screen

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