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EPS 6pin Cpu connector on old Be Quiet! PSU ( Dark Power Pro 650W)

So my friend got this old power supply for cheap but we cant find a cable for the cpu at all. We need something like 6pin to 4+4 (8pin) cpu power connector, to power Ryzen system. Does anyone know if its safe to use adapters from pcie to eps for cpu power, or should i just search for the fitting cable?

Here's a pic of a power supply:


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If you have the proper PCI_e cables and you use the PCI_e ports it should supply enough power but I'd be wary about the quality of the adapter.


Aside from my personal rule of thumb being not to buy used PSU's I definitely wouldn't buy one if it didn't come with all the cables.


If you can Id contact Be Quiet and see if they can sell you the proper cable.

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I have never heard of an adaptor on the PSU side connection, as those are generally proprietary to each manufacturer. Yeah, best bet is to contact Be Quiet themselves.

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11 hours ago, Viktor277 said:

So my friend got this old power supply for cheap



That was the 1st mistake....


What model is it exactly?

i9 9900K @ 5.0 GHz, NH D15, 32 GB DDR4 3200 GSKILL Trident Z RGB, AORUS Z390 MASTER, EVGA RTX 3080 FTW3 Ultra, Samsung 970 EVO Plus 500GB, Samsung 860 EVO 1TB, Samsung 860 EVO 500GB, ASUS ROG Swift PG279Q 27", Steel Series APEX PRO, Logitech Gaming Pro Mouse, CM Master Case 5, Corsair AXI 1600W Titanium. 


i7 8086K, AORUS Z370 Gaming 5, 16GB GSKILL RJV DDR4 3200, EVGA 2080TI FTW3 Ultra, Samsung 970 EVO 250GB, (2)SAMSUNG 860 EVO 500 GB, Acer Predator XB1 XB271HU, Corsair HXI 850W.


i7 8700K, AORUS Z370 Ultra Gaming, 16GB DDR4 3000, EVGA 1080Ti FTW3 Ultra, Samsung 960 EVO 250GB, Corsair HX 850W.



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You need a cable for P8.


Cheap is for free? Because more than that is too much.


The unit is almost 13 years old and far from high-end. Don't use it. I don't think it's working well anymore.

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12 hours ago, Viktor277 said:

So my friend got this old power supply for cheap

That's a 13 year old power supply...




While most manufacturers tend to hard-wire the ATX and 4/8-Pin CPU cables into their modular PSU's, Be Quiet! have decided to only hard-wire the 24-Pin ATX connector. This may seem slightly strange at first, but as the unit supports both P4-12v, P8 and EPS 6-Pin (Server style) motherboard connectors it helps to cut down on additional cable clutter.

1 x cable for mainbord ( Dualboard ) EPS 6pin 600mm


You want to use the P8 Connector above what you have circled with the matching 8 pin CPU/EPS12V cable that came with the power supply.

Edited by Spotty

CPU: Intel i7 6700k  | Motherboard: Gigabyte Z170x Gaming 5 | RAM: 2x16GB 3000MHz Corsair Vengeance LPX | GPU: Gigabyte Aorus GTX 1080ti | PSU: Corsair RM750x (2018) | Case: BeQuiet SilentBase 800 | Cooler: Corsair H100i AIO | SSD: Samsung 970 Evo 500GB + Samsung 840 500GB + Crucial MX500 2TB | HDD: Seagate Ironwolf 8TB + 2x Seagate Ironwolf 6TB | Monitor: Acer Predator XB271HU + Samsung BX2450

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