A PSU with only 4-pin connector for CPU

adris3ddev · Jan 2, 2018

I have a kinda new 450W 80+ PSU with 24-pin connector, 6+2-pin PCIe connector and, as it occured to me - only 4-pin CPU connector.
I'm getting MSI B350M Pro-VDH (with 8-pin slot) and a Ryzen 5 1600.
My question is - will the 4-pin connector work in the 8-pin slot for this MB & CPU combo? Will I be able to do moderate overclock if it does work? And if it doesn't work - what are the workarounds here?

Mark RM · Jan 2, 2018

What exact PSU is this? what you're proposing is not recommended on an OC'd machine.

turkey3_scratch · Jan 2, 2018

The 4-pin connector will work fine in the 8-pin slot, and there is no need for all 8 pins since your CPU is a low powered CPU. With an overclock one could reckon it'd maybe be fine but it depends on the overclock as well as the quality of the cable itself. What PSU is it?

adris3ddev · Jan 2, 2018

I think it was called Chieftec Iarena 450W or sonething like that.

Mark RM · Jan 2, 2018

That's a fire waiting to happen. No, we're not exaggerating even a little.

Look into something cheap but durable like a CX450M or something along those lines.

turkey3_scratch · Jan 2, 2018

Yeah that PSU is no good. Very cheap, if you use it I would not overclock the CPU.

adris3ddev · Jan 2, 2018

In my country your mentioned PSU costs nearly as much as my motherboard.

Mark RM · Jan 2, 2018

That's the thing about great PC's - they start with great PSU's.

What country are we talking about?

adris3ddev · Jan 2, 2018

Country's Latvia (one of the worst countries in EU regarding economics, weather and many other factors).

Mark RM · Jan 2, 2018

Well, my grasp on the language is nil and pretty much is precluding me from hunting down anything for you.

I can honestly say that if you can find a good deal on an FSP or something we can tell you if it's a good product, the flashy brand names are buying their power supplies from companies like that anyhow.

But plugging your new rig into a firecracker is like buying a new BMW and getting bald tires... you know they're going to blow, the question is when and does it take the car with them.

adris3ddev · Jan 2, 2018

Within my price range:
Corsair VS450
Fortron FSP500-60APN
LEPA MX-F1 N500-SB-EU

Those ones appear to have good reviews, but I suspect most of them come from very low-end systems.

Mark RM · Jan 2, 2018

The Forton FSP500-60APN isn't a crap PSU, it's a midrange unit as good as most of the CX lineup. It's an older design but is a way better quality unit than that VS450 Corsair.

The Lepa I only know from it's failure at [H]
https://www.hardocp.com/article/2015/02/03/lepa_mx_f1_600w_power_supply_review/1

If you can afford that Fortron, it's your best bet from what you've shown me.

adris3ddev · Jan 2, 2018

Just read that the fortron one also seems to have just 4-pin for CPU. I'll keep digging.

adris3ddev · Jan 2, 2018

Also, what about Xilence Performance A+ XN060?

Mark RM · Jan 2, 2018

Apparently it had pretty good load and ripple results for everything you'd want in a budget power supply. Good efficiency too. Proper protections are in place and work. I've never heard of the brand because it seem to be mostly aimed at the EU , but nothing I read scared me at all. No real negatives aside from it being a touch nosier than others under high load (you won't be under high load).

adris3ddev · Jan 2, 2018

OK, I'll condider it, then.

Thank you so far!

adris3ddev · Jan 6, 2018

I noticed that XFX XT 500W P1-500B-XTFR was relatively cheap and highly rated, and since I haven't bought a new PSU yet, I ought to ask - would you reccomend me buying this one? It's €43(plus I get free shipping

), just a few bucks more than the ones I mentioned before.

jankerson · Jan 6, 2018

adris3ddev :

Made by Seasonic, that is fine.

Vic 40 · Jan 7, 2018

jankerson :

No it isn't,not all XFX are made by Seasonic. A whole thread about these XFX psu's and it doesn't sound promising,
http://www.jonnyguru.com/forums/showthread.php?t=12983

Maybe you have acces to some Be Quiet psu's? Some other options,
https://de.pcpartpicker.com/products/compare/rXQypg,p2yFf7,DxH48d,YBp323/
maybe these are available for decent prices.With the Antec you will have to use the power cable (wall->psu) from that new psu (if you can't return it) since it doesn't come with one.

adris3ddev · Jan 7, 2018

I bet I can go for the P1-450S-X2B9.
Looking at this one I can see no negative reviews, so I guess it's a very decent PSU. It also costs around €50, so it's not that expensive. Still have to go like €15 above planned budget for PSU.

Vic 40 · Jan 8, 2018

A good psu is worth some extra money. In the pcpartpicker says it has 2 pcie connectors,but that was revision one,they changed that to 1 so keep that in mind when shopping for a gpu.

adris3ddev · Jan 8, 2018

I already have bought my GPU. It's GTX 1060-6GB with single 6-pin.

Vic 40 · Jan 8, 2018

That would work fine with it.

adris3ddev · Jan 8, 2018

What about Corsair VS 500W? That costs nearly €10 less. Is it as reliable?

Vic 40 · Jan 8, 2018

With 500watts thats the new updated version i think? The black/grey one?

Probably fine,still budget,but would choose that over the older versions.

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