Question SeaSonic Cable replacement issues

[NightHawkRMX]

Hello, I recently purchased a used SeaSonic M12ii GM 520w BRONZE PSU from eBay for $27. It works great but I have an issue.

https://www.outletpc.com/jz4989-seasonic-m12ii-520-bronze-atx-psu.html
This PSU from the factory comes with a 6 pin and 6+2 pin modular cable, however, mine only came with the single 6 pin cable. I managed to get a partial refund of $10 because it was not listed as missing the 6+2 pin cable.

I am looking to find a way to power a 6+2 pin GTX960 with this PSU. I have a dual Molex to 6 pin adapter than a dual 6 pin to 8 pin adapter, but I'm not going to risk that.

I found the correct modular cable on eBay, but it will take months to ship, which I'm not waiting for.
I am struggling to find the correct cable anywhere else.

This PSU is not compatible with the modular cables from the newer SS M12ii 520w EVO PSU, as the EVO uses an 8 pin connector on the PSU side for the PCIe cables, where this older M12ii only uses a 6 pin on the PCIe side for the 6+2 pin connector.

I did notice however, this PSU has both a 4+4 pin and a solid 8 pin for CPU power. Given the CPU 8 pin supplies more power than a GPU 8 pin, could I use a CPU 8 pin to PCIe 6+2 pin adapter?

I'm not going to return the PSU since I won't be able to get nearly as good of a PSU for the $17 I have into this currently.

 

[boju]

No cpu to gpu. Best return psu and buy new tbh. Or get in contact with manufacturer for cable replacements for this specific psu model.

 

[NightHawkRMX]

Why not exactly?
Is there something im missing?

The eps 8 pin is designed to deliver up to250w and the pcie 8 pin is only up to 150w, so there shouldn't be any issues with melted wires, assuing the adapter is of proper gauge?

The only issue i could see is a improperly wired adapter, which i will test before plugging a card into it.

 

[NightHawkRMX]

I will contact seasonic first tho

 

[geofelt]

Exactly what cables did the psu come with?

My reading says that the psu comes with two 6+2 pcie cables.
If you have only one, 6+2 just plug it in and leave the +2 dangling.

If you have nothing, use an adapter.
Adapters are not considered best, but they work.
You could use a molex to 6 pin adapter cable like this:
https://www.walmart.com/ip/6-Pin-PC...MIo7fn-urT5wIVApyzCh22Qg96EAQYBCABEgLY0vD_BwE

Seasonic customer support may be able to help, but it might take some time.

 

[NightHawkRMX]

This PSU is semi modular unlike the newer evo 520w.

It has the 24 pin and dual 8 pin eps connectors as non removable. It came with a single 6 pin pcie modular cable, a sata modular cable, and a molex modular cable.

I already have a quality dual molex to 6 pin adapter that came sealed with an xfx card. I can use that and the actual 6 pin with a dual 6 pin to 8 pin adapter.

I'll try it.

Im currently waiting on seasonic to respond.

 

[geofelt]

What is the make/model of the GTX960 that you need to power?
What 6 or 8 pin pcie sockets does it have?
A normal GTX960 needs only a single 6 pin connector.
But some factory overclocked versions can need much more.

 

[NightHawkRMX]

From what i read this psu would come with a 6 and 6+2 pin.

This is an msi gaming 960 2gb with a single 8 pin. Works fine on my cx550m

 

[geofelt]

Keep the number of adapters to a minimum.
Use a dual molex to 8 pin pcie adapter like this:
https://www.newegg.com/2-tone-start...K29129-_-1&Description=molex+to+8+pin+adapter

Why did you feel the need to change out the CX550m that worked?

 

[NightHawkRMX]

I just tested the gpu in my main system with the cx550m. Just to make sure it worked as i bought it locally for an incredable deal.

This seasonic PSU and GTX 960 are for another system.

 

[NightHawkRMX]

The 2 adapters seem to be running alright for now. I'll wait on Seasonic.

 

[NightHawkRMX]

So, SeaSonic told me they don't have any cables for the older m12ii, however they game me a link for a place to buy one.

https://www.btosinte.com/OEM-Seasonic-6pin-to-62pin-PCIe-connector-Modular-Cable-OEM-662PCIe.htm

So ill get that with the money refunded from the psu seller.