Which PSU and cables for new build

Kernowbeef

Kernowbeef

Kernowbeef

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Hi everyone,

Last built a PC about 17 years ago (Core 2 duo)

I have already bought the following:

Ryzen 7800X3D
Aorus B850 Elite
Aorus RX9070XT
32GB 6000mhz memory
HAVN 360 flow
2tb m.2
Arctic Freezer 36

So just need a PSU and would like to get come nice cables but have noted the GPU uses 3 x 8 cables. It seems most cable ext kits dont come with enough cables for this. Can anyone point me in the right direction on what to order regarding extra cables and a decent PSU?

TIA
 
If you want 3x independent cables from the PSU for the card, plus 2x EPS12v for the board (the Elite has a 4-pin and an 8-pin, right?), then it can be tricky.

Some PSUs even have a cable that goes from a 16-pin to 2x 8-pin, nasty! :o

This one appears (from the pic) to have 5, not a top tier PSU (warranty is 8-year), but the platform reviews fine.

My basket at OcUK:

Total: £108.98 (includes delivery: £3.99)​

I'd be comfortable using 2 connectors from the same cable for a 3x 8-pin card. Motherboards don't normally need both the 8-pin and 4-pin (or additional 8-pin).

What kind of cables are you looking for exactly? Depending on the kit, it can be cheaper to just buy the PSU with the cable style you want.
 
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I've just used the nzxt c850 atx 3.1 psu...it's tier A, comes with 10year warranty etc...don't think ocuk do it though...anyway, although i used the 12+4 pin for the nitro+card, it does come with 3 6+2 pin pcie power cables, 1 8 pin cpu and 1 4+4 cpu cable, so s/b good... ( i can check cables left over when get home if you like)

review of it below

www.kitguru.net

NZXT C850 ATX 3.1 PSU (White) Review - KitGuru

Check out the C1000 Gold review HERE and the C1200 Gold review HERE. It has been some time since we
www.kitguru.net www.kitguru.net

just checked, black version on offer £104.40 if you look (make sure type) atx3.1...that's the new version
 
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Tetras said:
If you want 3x independent cables from the PSU for the card, plus 2x EPS12v for the board (the Elite has a 4-pin and an 8-pin, right?), then it can be tricky.

Some PSUs even have a cable that goes from a 16-pin to 2x 8-pin, nasty! :o

This one appears (from the pic) to have 5, not a top tier PSU (warranty is 8-year), but the platform reviews fine.

My basket at OcUK:

Total: £108.98 (includes delivery: £3.99)​

I'd be comfortable using 2 connectors from the same cable for a 3x 8-pin card. Motherboards don't normally need both the 8-pin and 4-pin (or additional 8-pin).

What kind of cables are you looking for exactly? Depending on the kit, it can be cheaper to just buy the PSU with the cable style you want.
Click to expand...
I'm not really bothered whether i have 3 independent cables or not i just want to make sure i order everything i need and aren't left short when i build.

I was looking at the Seasonic PSU https://www.overclockers.co.uk/seas...-80-plus-gold-power-supply-pow-ssc-03647.html

Cablewise i was looking at the Cablemod brand for motherboard and GPU but i'm unsure as to which i would need.

There is so much to research nowadays as oppose to when i last build. Quite overwhelming tbh.
 
Craig_d1 said:
I've just used the nzxt c850 atx 3.1 psu...it's tier A, comes with 10year warranty etc...don't think ocuk do it though...anyway, although i used the 12+4 pin for the nitro+card, it does come with 3 6+2 pin pcie power cables, 1 8 pin cpu and 1 4+4 cpu cable, so s/b good... ( i can check cables left over when get home if you like)

review of it below

www.kitguru.net

NZXT C850 ATX 3.1 PSU (White) Review - KitGuru

Check out the C1000 Gold review HERE and the C1200 Gold review HERE. It has been some time since we
www.kitguru.net www.kitguru.net

just checked, black version on offer £104.40 if you look (make sure type) atx3.1...that's the new version
Click to expand...
Cheers mate. Looks a solid choice.

I'm assuming you get a 12v 6x6 to 3x8 pci e cable for the GPU? Or is this something you have to get separate? Sorry if i'm getting confused.
 
Kernowbeef said:
I was looking at the Seasonic PSU https://www.overclockers.co.uk/seas...-80-plus-gold-power-supply-pow-ssc-03647.html
Click to expand...
I would not buy that one for your system. It only has 3x PCI-E/EPS12v, which isn't enough. Looks like Seasonic intend it to be used with nvidia cards.

If you're prepared to spend the extra I'd get Antec's HCG Pro, the 850 version has 5 ports (from what I can see in the pic) and it is derived from Seasonic's Vertex.

Kernowbeef said:
Cablewise i was looking at the Cablemod brand for motherboard and GPU but i'm unsure as to which i would need.

There is so much to research nowadays as oppose to when i last build. Quite overwhelming tbh.
Click to expand...
What I'm getting at, is why do you want a cable kit? What do they offer that's better than the PSU cables? If you want white, for example, it is probably cheaper to just buy a white PSU.
 
Tetras said:
I would not buy that one for your system. It only has 3x PCI-E/EPS12v, which isn't enough. Looks like Seasonic intend it to be used with nvidia cards.

If you're prepared to spend the extra I'd get Antec's HCG Pro, the 850 version has 5 ports (from what I can see in the pic) and it is derived from Seasonic's Vertex.


What I'm getting at, is why do you want a cable kit? What do they offer that's better than the PSU cables? If you want white, for example, it is probably cheaper to just buy a white PSU.
Click to expand...
Purely for aesthetics and these cable kits tend to look neater that the ones supplied with the PSU
 
Kernowbeef said:
Purely for aesthetics and these cable kits tend to look neater that the ones supplied with the PSU
Click to expand...


My basket at OcUK:

Total: £227.93 (includes delivery: £7.99)​

You'll get white or black cables like this:

white.avif

The cables come loose unless they've updated it, but have combs which can be seen in the image to thread them through to manage however you like.
 
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Kernowbeef said:
Purely for aesthetics and these cable kits tend to look neater that the ones supplied with the PSU
Click to expand...
Personally, I'd rather just shop around for a PSU that has the cables I like. With great photography in reviews and YouTube videos, it is fairly easy to check that before you buy.

Extension kits are cheaper than custom cables, but even then, they approach the price of a PSU in some cases.

Kernowbeef said:
Cablewise i was looking at the Cablemod brand for motherboard and GPU but i'm unsure as to which i would need.
Click to expand...
If you do want a cable kit, there's not much complicated about it.

Motherboard: this is the 24 pin cable. 20 pin is pretty much dead, but most cables are still 20+4 (so you can split the 4 off, if you don't need all 24).

CPU: this is a CPU 8-pin or EPS12v. In 99% of PSUs, you can split at least one of these in half, since they come as 4+4. Your board appears to have 1x 8-pin and 1x 4-pin, in which case you need to ensure that at least one of the cables is 4+4.

PCI-E: this just has the label PCI-E and like the CPU, uses 8-pins. PSUs tend to make the CPU and PCI-E cables universal on the PSU-end, but they are NOT universal on the device-end. Almost all current cards use 8-pins, except for higher-end nvidia 40 and 50 series.

12VHPWR/12v-2x6: this is the 16-pin that the nvidia 40 and 50 series use. Currently, you have no need for this and don't need to pay for it. If you have the option: get a cable that says 12v-2x6 instead of 12vHPWR, but I'd take a good brand older cable versus a dodgy brand 12v-2x6 cable.

Molex/SATA: no change there, should already be familiar to you.
 
Tetras said:
Personally, I'd rather just shop around for a PSU that has the cables I like. With great photography in reviews and YouTube videos, it is fairly easy to check that before you buy.

Extension kits are cheaper than custom cables, but even then, they approach the price of a PSU in some cases.


If you do want a cable kit, there's not much complicated about it.

Motherboard: this is the 24 pin cable. 20 pin is pretty much dead, but most cables are still 20+4 (so you can split the 4 off, if you don't need all 24).

CPU: this is a CPU 8-pin or EPS12v. In 99% of PSUs, you can split at least one of these in half, since they come as 4+4. Your board appears to have 1x 8-pin and 1x 4-pin, in which case you need to ensure that at least one of the cables is 4+4.

PCI-E: this just has the label PCI-E and like the CPU, uses 8-pins. PSUs tend to make the CPU and PCI-E cables universal on the PSU-end, but they are NOT universal on the device-end. Almost all current cards use 8-pins, except for higher-end nvidia 40 and 50 series.

12VHPWR/12v-2x6: this is the 16-pin that the nvidia 40 and 50 series use. Currently, you have no need for this and don't need to pay for it. If you have the option: get a cable that says 12v-2x6 instead of 12vHPWR, but I'd take a good brand older cable versus a dodgy brand 12v-2x6 cable.

Molex/SATA: no change there, should already be familiar to you.
Click to expand...
Thanks for taking the time to explain this. Definitely makes more sense now.

Regarding the psu I have just looked at this and it seems the seasonic would be appropriate for the 9070xt or am I getting something wrong?
@1:25
 
Kernowbeef said:
Regarding the psu I have just looked at this and it seems the seasonic would be appropriate for the 9070xt or am I getting something wrong?
Click to expand...
If you look at the picture of the PSU's back panel, it only has 3 ports combined for CPU and PCIE.

The cables supplied are:
2x cables with 1x CPU/EPS12v 4+4.
1x cable with 1x PCIE 8-pin
1x cable with 2x PCI-E 8-pin

You need to use all four cables and you can't do that.

You could just plug in only 1x of the CPU/EPS12v, which would solve the problem, except you still wouldn't have 3x independent PCI-E cables.

Personally, if I was buying 9070 XT with 3x PCI-E 8-pins, I just wouldn't bother with this PSU. It is a second tier unit anyway (7 year warranty) and 3x combined CPU/PCIE is too few. What happens if you need an additional PCIE for a fan controller, AIO, RGB or something like that? (normally they use SATA connectors, but you never know)

About 16-pin to 2x 8-pin cables, I know a lot of PSUs come bundled with those nowadays, but to quote myself on the topic:
nasty! :o
Click to expand...
 
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Tetras said:
If you look at the picture of the PSU's back panel, it only has 3 ports combined for CPU and PCIE.

The cables supplied are:
2x cables with 1x CPU/EPS12v 4+4.
1x cable with 1x PCIE 8-pin
1x cable with 2x PCI-E 8-pin

You need to use all four cables and you can't do that.

You could just plug in only 1x of the CPU/EPS12v, which would solve the problem, except you still wouldn't have 3x independent PCI-E cables.

Personally, if I was buying 9070 XT with 3x PCI-E 8-pins, I just wouldn't bother with this PSU. It is a second tier unit anyway (7 year warranty) and 3x combined CPU/PCIE is too few. What happens if you need an additional PCIE for a fan controller, AIO, RGB or something like that? (normally they use SATA connectors, but you never know)

About 16-pin to 2x 8-pin cables, I know a lot of PSUs come bundled with those nowadays, but to quote myself on the topic:
Click to expand...
Is there another PSU would would recommend under £120? I can't quite stretch to the Antec you recommended
 
Kernowbeef said:
Cheers mate. Looks a solid choice.

I'm assuming you get a 12v 6x6 to 3x8 pci e cable for the GPU? Or is this something you have to get separate? Sorry if i'm getting confused.
Click to expand...
Sorry, got home and knackered, crashed for an hour. You got plenty of options above, but regarding question, the nzxt has all the cables and sockets you need. There's the main cable for the motherboard, you have 2 cables for the cpu(top left of board), you get the 12 pin high power socket(you wont need but if you ever change to nvidia in future or get an amd in future that has it, it's there) and you also get 3 cables for plugging into your current 9070xt you have (checked spare cables and they're there in the leftovers from my build..used 9070xt nitro+)...back of the psu has 5 pcie-cpu sockets so covers the 2 cpu and 3 gpu (as well as socket for mobo and high power socket, and a whole load for sata and peripherals)

if you want for ocuk, the corsair rm850x is still a great psu on offer, though £120. just be aware the sockets are small on the actual psu, so make sure if get cables, you make sure they're compatible

My basket at OcUK:

Total: £119.99 (includes delivery: £0.00)​
​
I see from review they've changed the cable types from last version, so now loose and comes with cable combs etc, which is pretty nice​
​
www.kitguru.net

Corsair RM850x ATX V3.1 (3rd Gen 2024) Review - KitGuru

See the RM1000x review HERE. Today we take a look at the first in a new range of power supplies that
www.kitguru.net www.kitguru.net
edit..from quick check looks like corsair gone back to type 4 socket type on the psu so normal size (i have the rm1000x shift which is micro size 'type 5?' iirc)​
 
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Kernowbeef said:
Is there another PSU would would recommend under £120? I can't quite stretch to the Antec you recommended
Click to expand...
Check out the MSI Mag A850GLS (note the S). Picked one up for my youngest's first PC - plenty of PCI-E ports and the included cables were decent enough that I didn't bother with custom extensions.

Currently available for £110, or the 1000W is £130.
 
Tetras said:
If you look at the picture of the PSU's back panel, it only has 3 ports combined for CPU and PCIE.

The cables supplied are:
2x cables with 1x CPU/EPS12v 4+4.
1x cable with 1x PCIE 8-pin
1x cable with 2x PCI-E 8-pin

You need to use all four cables and you can't do that.

You could just plug in only 1x of the CPU/EPS12v, which would solve the problem, except you still wouldn't have 3x independent PCI-E cables.

Personally, if I was buying 9070 XT with 3x PCI-E 8-pins, I just wouldn't bother with this PSU. It is a second tier unit anyway (7 year warranty) and 3x combined CPU/PCIE is too few. What happens if you need an additional PCIE for a fan controller, AIO, RGB or something like that? (normally they use SATA connectors, but you never know)

About 16-pin to 2x 8-pin cables, I know a lot of PSUs come bundled with those nowadays, but to quote myself on the topic:
Click to expand...
Would this not work as you would have spare PCI E ports if using only one as well as the 12v 2x6

IMG-7443.png
 
Just now looking at the Gigabyte Aorus Elite P850W PSU.
Has 6 x 6+2 PCI-e connectors. Is only ATX 3.0 but I don't need the 12v 2x6 connector as I'm assuming that's only for mainly NVIDIA GPU's?
 
Kernowbeef said:
as I'm assuming that's only for mainly NVIDIA GPU's?
Click to expand...
There's a few 9070 models that use it, like the Nitro, but yeah, mainly the 16-pin is used for nvidia 40 and 50 series.

Kernowbeef said:
Just now looking at the Gigabyte Aorus Elite P850W PSU.
Click to expand...
Don't know much about that one. A review I could find says it is built by MEIC which I'm only aware of Gigabyte using. SPL's tier list puts it as A-tier (speculatively) and warranty is 10-year.
 
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