Question Missing a cable for a Corsair CX450M

[sponge_b0b]

Hi,

I would like to power a GPU Geforce GTX 970 trough a PSU Corsair CX450M , but it appear I'm missing a cable !?

The GPU require ( 1x 8-pin, 1x 6-pin )

I have only one 8-pin(psu) to a split 2x ( 6+2pin )
and it doesn't make sense to connect it like this

As 2 and 3 come from the same PSU socket..

So In guess I need and extra 6-pin (PSU) to 6-pin pci-e ?
is it exist ?

is this PSU is even compatible with the GPU ?

Thanks

 

[COLGeek]

No, you don't need a 6-pin, per se. The usual connectors are 6+2. You use all 8 on one socket and just 6 (fold the 2-pin part out of the way), just like in your second picture.

 

[sponge_b0b]

Thank you @COLGeek 🙏, that was fast !

good news then ! but I don't understand why the GPU have two socket then if all the power can come from the same 8-pin/PSU socket !?

 

[COLGeek]

The cable going to the PSU is designed to deliver the proper power to both ports.

You do realize that your PSU is underpowered in regards to the recommended PSU wattage (500), right?

 

[Lutfij]

How old is the PSU? I would leave it as is. If you really do want to follow through the recommended route of having a standalone harness from the PSU to the device, then using this chart;
https://www.corsair.com/us/en/s/legacy-psu-cable-compatibility
you can get this cable;
https://www.corsair.com/us/en/p/pc-...ctor-and-capacitors-for-type-4-psu-cp-8920143
Pick up two of these so you have uniformity. Aesthetics wise.

Or look into this;
https://pt.aliexpress.com/item/1005005743316785.html?gatewayAdapt=glo2bra
Outside of that, you're going to be fine, if the unit is fairly new. It's only when you need to power higher end cards or you're seeing an anomaly with your GPU is when you look into powering the GPU with standalone harnesses.

 

[sponge_b0b]

...You do realize that your PSU is underpowered in regards to the recommended PSU wattage (500), right?

I didn't saw that on the brand specification and requirement page. ( thanks )
but I had run a PSU watt calculator in the preparation of this computer

and like I have limited equipment inside, 273W was the outputted value ( included this GPU )

 

[COLGeek]

While your current PSU should be okay, just keep in mind the manufacturer's recommendation should you have any issues.

 

[Lutfij]

Techpowerup says you can get away with a 300W unit.

Conversely, an old PSU that's been taxed with other hardware will output less power than it did when it was brand new, this is why I asked what it's age was. Also, what did it power throughout it's tenure?

 

[punkncat]

Just FYI, Corsair modular units are typically a "type 4" cable. This is generally stamped on the PSU side of the modular cable. They are easy to order as well.