kalCon

Thank you for your replies! I kinda assumed it'd be okay, but I was second guessing myself. I've been build PC's for over 20 years and something this dumb had be thinking twice. If you look at the definition for EPS on WIKI is ... Entry-Level Power Supply Specification Entry-Level Power Supply Specification (EPS) is a power supply unit meant for high-power-consumption computers and entry-level servers. Developed by the Server System Infrastructure (SSI) forum, a group of companies including Intel, Dell, Hewlett-Packard and others, that works on server standards, the EPS form factor is a derivative of the ATX form factor. The latest specification is v2.93. The EPS standard provides a more powerful and stable environment for critical server-based systems and applications. EPS power supplies have a 24-pin motherboard power connector and an eight-pin +12 V connector. The standard also specifies two additional four-pin 12 V connectors for more power-hungry boards (one required on 700–800 W PSUs, both required on 850 W+ PSUs). EPS power supplies are in principle compatible with standard ATX or ATX12V motherboards found in homes and offices but there may be mechanical issues where the 12 V connector and in the case of older boards connector overhang the sockets.[8] Many PSU vendors use connectors where the extra sections can be unclipped to avoid this issue. As with later versions of the ATX PSU standard, there is also no −5 V rail. ... And it made me think that there was a certain stability or whatever for the EPS standard that would be different from a listed 'CPU 12v 4+4 pin'.

So, I currently have a x99 system with a EVGA X99 Micro2 board with a E5-1650 V3 cpu. My current power supply is a Seasonic SSR-500GB3 and it recently died. I was able to power up my system with a 450 watt psu ( with a EPS 4+4) I keep lying around for testing and my system boots up and all, but with my RTX 2060 I don't believe it'd be stable. I hastily purchased a replacement ... a Cooler Master MasterWatt 750 Watt MPX-7501-AMAAB-US. It's supposed to be arriving today and I was double checking the specs and all that and I realized it doesn't list a EPS 8 or EPS 4+4 pin, but lists a CPU 12v 4+4 pin. I have been googling like mad trying to figure if they are compatible or if CM is just calling it something different or whatever. The motherboard spec does list the 8 Pin connector to be a EPS 12v. The last new(er) pc I built was for my nephew and was Gen 8 I7 and looking back at the manual I see it doesn't list EPS just a 8 Pin ATX 12V and did a few Ryzen boards list the same or a EATX 12v. I never thought to check that as every PSU I've purchased over the last few years had a EPS connector and EPS is supposed to be backwards compatible ( from what I read ). So, my question is would the CM psu I purchased be okay or did I just screw myself and have to order something else and wait longer? Thanks for all your help!

Thank you all for the info! So far so good and the 12v power brick does only have a 2 prong plug so maybe the grounding wire is doing what it's supposed to do.

Thank you for the info ... I did end up getting that psu and trying it out. Just for fun I opened up an extra atx psu I had laying around from and old Dell ... and the grounding wire is just screwed to the psu case. So, essentially you are ground the psu to the case when you install it. I just screwed the grounding wire to the case and everything appears to be running fine. Weird that the Pico PSU didn't have any grounding wires ... aside from what ever grounding is done via the 24 pin connector.

I have a smoothwall box running that had a dying Pico PSU. So, I found something similar to that on Amazon made by RGEEK ( some random China based company ). https://www.amazon.com/gp/product/B07WDG49S8/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 This psu has a separate grounding wire and I'm not quite sure if I'm supposed to ground it to the case or not? I've read that this was something from years ago back in the AT PSU days, but I don't remember encountering that them. I don't want to short out my machine, but even with a modern ATX PSU are not grounding the PSU to the case when you screw it in place? Thanks for you help!